Find Backflow Certification Classes Near You (By State)

Who Issues Certification?

In Alabama, the Alabama Department of Environmental Management (ADEM) administers the statewide cross-connection control rule (ADEM Admin. Code Chapter 335-7-9), but ADEM does not directly certify individual backflow testers. Instead, state-recognized third parties — ABPA, ASSE (via IAPMO), AWWA (Alabama/Mississippi Section), and UF TREEO — issue tester certifications. Local jurisdictions (city, county, or water purveyor such as Birmingham Water Works, MAWSS, Auburn Water Works Board, Trussville Gas & Water, Alabaster Water Board, Central Alabama Water, etc.) approve which certifications they accept and maintain their own lists of approved testers, so specific requirements vary by locality.

• AL/MS Section AWWA
• ASSE Schools (via IAPMO)
• UF TREEO Backflow Program
• ABPA (national)

Training Providers

Where to Sign Up For Your Certification Exam

The training provider may offer the certification exam at the end of the course — call to confirm. If not, you can schedule an exam through the relevant third-party certifier (AWWA AL/MS Section, ASSE via IAPMO, ABPA, or UF TREEO). No state-administered backflow tester exam exists in Alabama.

• AL/MS Section AWWA
• ASSE Schools (IAPMO)
• ABPA Certification
• UF TREEO Backflow

Recertification

Every three (3) years is the prevailing standard among Alabama water purveyors and third-party certifiers (ASSE 5110, ABPA, AWWA-section, APHCC/Backflow Control). UF TREEO certifications are valid for 2 years with a 1-year grace period. ADEM Code R. 335-7-9 does not itself prescribe a tester recertification interval — it leaves tester qualifications to local purveyors.

Official Resources

• Alabama Department of Environmental Management (ADEM) — Drinking Water Branch
• ADEM Admin Code Chapter 335-7-9 — Cross-Connection Control Requirements
• Alabama Department of Public Health — Environmental Services
• Auburn Water Works Board — Backflow Prevention and Cross-Connection Control Policy (PDF)

Who Issues Certification?

Alaska does not certify backflow testers at the state level. The Alaska Department of Environmental Conservation (DEC) Division of Water administers drinking water regulations under 18 AAC 80, which prohibits cross-connections and requires backflow protection, but leaves tester qualification requirements to local water systems and purveyors.

Each major water utility sets its own standards. Anchorage Water and Wastewater Utility (AWWU) maintains a public list of Certified Backflow Assembly Testers and requires new testers to register via the SCBF Tester Registration portal. The City and Borough of Juneau (CBJ) runs its own Cross-Connection Control Program with a local tester exam, a $20 fee, and its own 2-year certification cycle. In most areas, ABPA, ASSE (5110), and AWWA certifications are accepted — always verify with your local water purveyor first.

Training Providers

Where to Sign Up For Your Certification Exam

There is no statewide backflow tester exam in Alaska. The process varies by jurisdiction:

Anchorage (AWWU): After completing a recognized backflow tester course, register via the SCBF Tester Registration portal. Contact AWWU Field Services Monday–Friday 8am–5pm AKT.

Juneau (CBJ): Complete an approved backflow assembly tester course, then pass a separate CBJ written exam (open book, $20 fee, minimum score 75%). Certificates expire December 1st of every odd-numbered year.

Other areas: Contact your local water purveyor to determine their approved certifying bodies and registration process.

• AWWU Backflow Prevention — Anchorage
• CBJ Cross-Connection Control Program — Juneau

Recertification

Recertification intervals vary by jurisdiction and certifying body. For ABPA and ASSE certifications the standard interval is every three (3) years. Juneau (CBJ) operates on a two (2) year cycle — tester certificates expire December 1st of every odd-numbered year, and testers must pass a recertification exam and pay a $20 fee prior to December 31st of that year. Always confirm the recertification interval with your local water purveyor.

Official Resources

• Alaska DEC — Division of Water
• Alaska Drinking Water Regulations — 18 AAC 80
• Anchorage Water and Wastewater Utility (AWWU) — Backflow Prevention
• City and Borough of Juneau — Cross-Connection Control Program
• Utility Services of Alaska — Cross-Connection Control Program

Who Issues Certification?

In Arizona, State approved 3rd Parties (ABPA, ASSE, AWWA, and others) are responsible for certifying backflow testers. Certifications must be obtained through a certifying authority approved by the Arizona Department of Environmental Quality (ADEQ) under Administrative Code A.A.C. R18-4-215 (last revised February 2026). All American Backflow Prevention is also directly authorized by ADEQ as a certifying agent.

There are two certification types: General Backflow Tester (required for conducting annual assembly tests) and Cross-Connection Control Program Specialist (required for individuals directly responsible for a backflow prevention program at a water system serving more than 50,000 people).

All Arizona backflow tester training and exams must follow the USC 10th Edition Testing Procedures. Local jurisdictions (City, County or Water Purveyor) can set additional registration requirements, so always verify with your local water purveyor.

• All American Backflow Prevention (ADEQ-Authorized Certifying Agent)
• ABPA — Arizona Chapter
• CA-NV Section AWWA (ADEQ-approved exam authority)
• ASSE Schools (via IAPMO)

Training Providers

Where to Sign Up For Your Certification Exam

The backflow testing training course provider may offer a backflow certification exam at the end of the training — call to confirm. All American Backflow Prevention is ADEQ-authorized and issues Arizona certification directly. Cross Connection Environmental administers the ABPA exam separately — register with ABPA at abpa.org/event after completing the course. P.I.P.E. Trust administers the ASSE 5110 exam through IAPMO.

ABPA also holds standalone Tester and Specialist exam events in Arizona — see the ABPA events calendar for upcoming Tucson and Tempe exam dates.

• ABPA Events Calendar (Arizona exam dates)
• All American Backflow Prevention — Class Schedule
• ASSE Schools Directory (IAPMO)

Recertification

Recertification is every three (3) years for ABPA and ASSE certifications. All American Backflow Prevention offers 8-hour recertification classes alongside their 40-hour new-tester courses. P.I.P.E. Trust offers an 8-hour recertification class managed through Arizona Pipe Trades. Cross Connection Environmental offers a 16-hour refresher course. Note: Arizona requires all backflow prevention assemblies to be tested at least annually — this is a device testing requirement separate from the tester's personal recertification interval.

Official Resources

Arizona Department of Environmental Quality (ADEQ) — (602) 771-4664

• ADEQ — Backflow Prevention and Cross-Connection Control
• Arizona Administrative Code A.A.C. R18-4-215
• ADEQ — Backflow and Cross Connection PDH Workbook (PDF)
• Arizona Water Company — Certified Backflow Testers by Area

Who Issues Certification?

The State of Arkansas directly certifies backflow testers through the Arkansas Department of Health (ADH) Protective Health Codes Division. To become certified, you must: (1) complete a 40-hour ADH-accredited backflow tester training course, (2) apply to ADH with your course completion certificate before your scheduled exam date, and (3) pass the written examination administered by the Arkansas Department of Health.

Most ADH-accredited courses follow the USC 10th Edition Testing Procedures. Note: some municipalities in Arkansas follow the USC 9th Edition — confirm with your local water purveyor which edition applies in your jurisdiction before selecting a training course.

To register for the ADH licensure exam, contact the ADH Protective Health Codes Division before attending your course: Ricky Mayhan (501) 661-2642 • Ricky.Mayhan@arkansas.gov or William Sims (501) 661-2648 • William.Sims@arkansas.gov. For cross-connection control program questions, contact Robert Reaves (501) 661-2623 • Robert.Reaves@arkansas.gov.

• ADH — Programs & Services - Check Certificates & Records
• ADH — Accredited Backflow Training Programs (2025 PDF)

Training Providers

Where to Sign Up For Your Certification Exam

The backflow testing training course provider may offer a backflow certification exam at the end of the training — call to confirm. In Arkansas, a separate written examination administered by the Arkansas Department of Health is also required to receive your state certification.

You must apply to ADH and have your application received before your scheduled exam date. For ARWA courses, pre-register and prepay the ADH testing fee at least 45 days before attending classes.

• ADH — Cross Connection and Backflow Prevention Resources
• ARWA — Available Backflow Training Classes
• AETA / SAU Tech — Backflow Division

Recertification

Recertification is required every two (2) years. Certified testers must complete an 8-hour ADH-accredited recertification course. ARWA offers the 8-hour recertification course in-person. SAU Tech AETA offers both in-person and online recertification options.

Official Resources

• Arkansas Department of Health — Cross Connection and Backflow Prevention
• ADH — List of Certified Backflow Testers & Repairmen
• ADH — Accredited Backflow Training Programs (2025 PDF)
• ADH — Cross-Connection Control FAQs
• Arkansas Rural Water Association — Backflow Training

Who Issues Certification?

In California, State approved 3rd Parties (CA-NV Section AWWA, ABPA, NCBPA, ASSE, and others) are responsible for certifying backflow testers. As of July 1, 2025, the State Water Resources Control Board (SWRCB) requires that all backflow assembly testers and cross-connection control specialists used by public water systems be certified by a certifying organization officially recognized by the SWRCB. Effective July 1, 2027, only certifying organizations accredited by ANSI to comply with ISO/IEC 17024 will be accepted.

Local jurisdictions (City, County or Water Purveyor) can set their own registration requirements on top of the state certification, so requirements can vary significantly by county. Certification in California is a three-step process: (1) Complete a training course of at least 36 hours (most courses are 40 hours); (2) Pass a written and hands-on practical exam through a SWRCB-recognized third-party certifying organization; (3) Register with the applicable county health department or local water purveyor.

Here is a link to Kruger's Training Academy that explains backflow certification county by county in California. Note: Los Angeles County is transitioning — starting July 1, 2026, their own county exam will no longer be required and SWRCB-approved third-party certifications will be accepted for both internal and external devices.

• ABPA — California
• CA-NV Section AWWA
• ASSE Schools (via IAPMO)
• NCBPA
• California Counties Exam/License Info

Training Providers

Where to Sign Up For Your Certification Exam

After completing a 40-hour training course, you must sit for a written and hands-on practical exam through a SWRCB-recognized third-party certifying organization. CA-NV Section AWWA is the most widely used certifying body in California. ABPA also holds exam events statewide. Submit your exam application at least 20 days before your preferred exam date.

After receiving your third-party certification, you must register with the applicable county health department or local water purveyor. County-level requirements vary significantly — see Kruger's county-by-county breakdown or USC FCCCHR's Southern California certification requirements page for details. Note: Los Angeles County is transitioning to accept SWRCB-approved third-party certifications starting July 1, 2026.

• CA-NV Section AWWA — Backflow Tester Exam Information
• ABPA — Tester Certification & Events Calendar
• SWRCB — Recognized Certifying Organizations
• Kruger's — California County-by-County Requirements
• USC FCCCHR — Southern California County Certification Requirements

Recertification

Recertification intervals vary by certifying body. CA-NV Section AWWA and ABPA certifications are valid for three (3) years. Contact your certifying body directly for recertification requirements. Note: the SWRCB's transition to ANSI-accredited organizations by July 2027 may affect recertification pathways — confirm your certifying body's accreditation status before renewing.

Official Resources

• SWRCB — Backflow Tester and Cross-Connection Control Specialist Certification
• SWRCB — Cross-Connection Control Policy Handbook (CCCPH)
• CA-NV Section AWWA — Backflow Prevention Assembly Tester Certification
• USC FCCCHR — Southern California County Certification Requirements
• Riverside County DEH — Backflow Tester Certification Program

Who Issues Certification?

In Colorado, State approved 3rd Parties (ABPA, ASSE, AWWA, and others) are responsible for certifying backflow testers. The Colorado Department of Public Health and Environment (CDPHE) Water Quality Control Division administers the Backflow Prevention and Cross-Connection Control (BPCCC) Rule under Regulation 11, Section 11.39 (effective October 15, 2023). The American Backflow Prevention Association (ABPA) is specifically listed in Regulation 11.39(1)(h) as an approved certifying organization for Colorado.

Important 2025 legislative update: On March 28, 2025, Governor Polis signed HB25-1077, which allows certified cross-connection control technicians to inspect, test, AND repair backflow prevention devices. The CDPHE encourages water suppliers to use certified technicians in their BPCCC programs. For questions, contact the CDPHE Field Services team at cdphe_wqcd_fss_questions@state.co.us.

Local jurisdictions (City, County or Water Purveyor) can set their own backflow certification standards, so requirements can vary by city, county, or water purveyor. In some cases, the local jurisdiction itself may be responsible for certifying backflow testers.

• ABPA — Colorado Chapter
• ASSE Schools (via IAPMO)
• CDPHE — BPCCC Rule and Guidance

Training Providers

Where to Sign Up For Your Certification Exam

The backflow testing training course provider may offer a backflow certification exam at the end of the training — call to confirm. Backflow Consulting & Training schedules an ABPA exam on the Saturday following each class (ABPA registration must be completed separately, 14 days prior to class start). Morrison Backflow Testing also arranges ABPA exams following their courses.

For ABPA exam dates in Colorado, see the ABPA Colorado Chapter events calendar.

• ABPA — Colorado Chapter Events
• ASSE Schools Directory (IAPMO)

Recertification

Recertification is every three (3) years for ABPA and ASSE certifications. Backflow Consulting & Training offers a 20-hour Backflow Assembly Test Procedure Review course (#204) designed to prepare certified testers for the ABPA recertification exam. Backflow Education Group also offers recertification courses. Contact your certifying body for specific recertification requirements.

Official Resources

Colorado Department of Public Health & Environment (CDPHE) — (303) 692-3500

• CDPHE — Backflow Prevention and Cross-Connection Control (BPCCC)
• CDPHE — Regulation 11, Section 11.39 (BPCCC Rule)
• CDPHE — HB25-1077 Backflow Prevention Device Requirements (2025)
• ABPA — Colorado Chapter

Who Issues Certification?

In Connecticut, the Department of Public Health (DPH) — Drinking Water Section — is the certifying authority for backflow prevention device testers. State regulations under Section 19-13-B38a of the Regulations of Connecticut State Agencies require that certain backflow prevention devices be tested only by individuals who have completed and passed a DPH-approved training course. Once a person has completed and passed such a course, the Application for Certification must be submitted to the CT DPH within one year of the most recent exam results.

The New England Water Works Association (NEWWA) is the only training provider currently listed by the CT DPH as offering an approved course for backflow prevention device tester certification. NEWWA runs multiple 4-day courses per year at locations across Connecticut, including Danbury, Hartford, Groton, and Hamden. Note: NEWWA's standard certification is universally recognized in most states, but Connecticut (along with Massachusetts and New York) requires a separate state certification — passing a NEWWA course held in Connecticut is the standard path to obtaining your CT state certificate, and CT regulations will be specifically addressed during the course.

Important: Providers such as Kruger's Training Academy have explicitly noted their New England program is not approved by the CT DPH and is not acceptable for reciprocity with Connecticut purveyors. Always verify that your training provider is DPH-approved before enrolling.

• CT DPH — Backflow Prevention and Cross Connection Control
• NEWWA — Backflow/Cross Connection Program
• NEWWA — Upcoming Training Schedule

Training Providers

Certification Application

After successfully completing and passing the NEWWA course and exam held in Connecticut, you must file the Application for Certification with the CT DPH Drinking Water Section within one year of your exam date. The application fee is $69. The CT DPH e-Licensing portal (elicense.ct.gov) can be used to look up or verify any existing certification.

Individuals who completed a NEWWA course outside of Connecticut and wish to apply for a CT certificate must also attend the Connecticut regulations presentation given during an approved course held in Connecticut. Contact NEWWA to register for that portion.

• CT DPH — Backflow Prevention Device Tester Initial Certification Application (PDF)
• CT eLicense — Verify Certification

Recertification

Recertification is every three (3) years. To renew your CT state certification, proof of 50 completed backflow tests within the past 3 years and a 3-hour recertification course are required. The CT DPH application fee for renewal is $69.

NEWWA separately requires certified testers to complete a minimum of 0.3 CEUs and pass a performance (hands-on) exam to renew their NEWWA certification every 3 years. NEWWA offers several options: the in-person Backflow Prevention Device Tester Recertification Review Training (with hands-on practical exam on the last day), the Advanced Testing and Diagnostic Procedures Course, and the 3-Hour Online Backflow Prevention Device Tester Review Course paired with an online performance examination. Note: the online exam path can only be used in alternating renewal cycles — an in-person practical exam is required every other renewal period.

For recertification course questions, contact Linda Smith at NEWWA: lsmith@newwa.org.

• NEWWA — Upcoming Recertification Courses
• NEWWA — Recertification FAQ

Official Resources

Connecticut Department of Public Health — Drinking Water Section: (860) 509-7333

• CT DPH — Backflow Prevention and Cross Connection Control
• CT DPH — Cross Connection Control Manual
• CT DPH — Regulation 19-13-B38a (Drinking Water Topics A–Z)
• CT eLicense — Verify Backflow Tester Certification
• NEWWA — Backflow/Cross Connection Program

Who Issues Certification?

In Delaware, state-approved third parties — including the American Backflow Prevention Association (ABPA), the American Society of Sanitary Engineering (ASSE), the American Water Works Association (AWWA), and others — are responsible for certifying backflow testers. Delaware's Cross-Connection Control (CCC) regulations under 16 Del. C. § 4462 (effective February 1, 2021, with compliance required by February 1, 2024) establish the framework for backflow prevention programs statewide, and require that approved devices conform to ASSE, AWWA, and ASME standards.

Because local jurisdictions — including cities, counties, and individual water purveyors — can set their own backflow certification standards, requirements may vary. In some cases, the local purveyor itself may establish the certifying requirements for testers. Always verify with your local water utility or purveyor before enrolling in a course to confirm which certification they accept.

• ASSE Schools Directory (via IAPMO)
• Delaware DHSS — Cross-Connection Control Guidance

Training Providers

Where to Sign Up For Your Certification Exam

The backflow testing training course provider typically offers a backflow certification exam at the end of the training course — call to confirm. DRWA administers the ASSE written and hands-on practical exam as part of their Tester Certification course at the end of the week. Upon passing, ASSE issues a Tester Certification Card and number valid for three years in any jurisdiction where ASSE is accepted, including Delaware.

Note: Because local jurisdictions and water purveyors in Delaware may have additional requirements, always verify your certification path with your local purveyor before enrolling.

Recertification

Recertification is every three (3) years. DRWA offers ASSE Recertification courses in Milford — multiple 1-day recertification dates are available throughout 2026 (May 14, Jun 18, Jul 17, Sep 11, and more). Recertification requires passing a hands-on lab test (RP and DC assemblies) and a closed-book written exam. Cost: $595 through DRWA (2026 fee schedule).

IAPMO BPI also offers ASSE recertification training at your location on an on-demand basis.

• DRWA — ASSE Backflow Course Calendar

Official Resources

Delaware Health and Social Services — Office of Drinking Water

43 S. DuPont Highway, Dover, DE 19901

(302) 741-8630

• Delaware DHSS — Office of Drinking Water
• DHSS — Cross-Connection Control Guidance (Summary of Water System Responsibilities)
• Delaware Regulations Governing Public Drinking Water Systems (16 Del. C. § 4462)
• ASSE Schools Directory (via IAPMO)

Who Issues Certification?

In Florida, there is no state-level agency that regulates backflow assembly testing. Authorization to perform testing is determined by each local water district or water purveyor. State-approved third parties — including the American Backflow Prevention Association (ABPA), ASSE, AWWA, and UF TREEO — are recognized certifying bodies, but individual purveyors set their own acceptance standards. In some cases, the local jurisdiction itself may be responsible for certifying backflow testers.

The University of Florida TREEO Center (UF TREEO) is the only provider in the state with FSAWWA (Florida Section American Water Works Association) accreditation. After completing a TREEO course, the FSAWWA issues a separate certificate in addition to the UF TREEO certificate. TREEO is the most widely accepted program across Florida, though other providers may also be accepted depending on your county or water purveyor — always verify with your local authority before enrolling.

Important: To install or repair backflow prevention assemblies in Florida, you must be a state-licensed plumbing contractor (Florida Statutes Chapter 489). Fire line backflow testing has additional prerequisites through the State Fire Marshal's office.

• ABPA — Region 3
• ASSE Schools Directory (via IAPMO)
• UF TREEO — Backflow Courses

Training Providers

Where to Sign Up For Your Certification Exam

The backflow testing training course provider typically offers a backflow certification exam at the end of the training course — call to confirm. UF TREEO administers written and practical exams on the last day of their 5-day course; passing both (70% minimum) earns the UF TREEO certificate and triggers the FSAWWA certificate issuance.

Because Florida has no centralized state exam, the certification you receive is from your training provider. Always verify with your local water purveyor or water district that they accept your chosen provider's certification before enrolling.

Recertification

Recertification is every two (2) years. The third year is a grace period. After three years from initial certification or last recertification, the 2-day refresher course is no longer sufficient and you must retake the full initial certification course.

UF TREEO offers Backflow Prevention Recertification courses (2-day) at locations across Florida throughout the year — see their course calendar for dates. FWPCOA also offers 1-day recertification exams at multiple locations. Murray Backflow School offers a 4-hour recertification course ($412). Reciprocity: none.

• UF TREEO — Backflow Recertification Courses
• FWPCOA — Training Event Calendar

Official Resources

Florida Department of Environmental Protection — Drinking Water Section: (850) 245-8336

• Florida DEP — Cross Connection Control and Backflow Prevention Program
• Florida Administrative Code — Rule 62-555.360 (Cross-Connection Control)
• UF TREEO — Backflow Prevention Program
• UF TREEO — Verify Backflow Certification (Database)

Who Issues Certification?

The State of Georgia certifies backflow testers through the Georgia Backflow Prevention Assembly Tester (GBPAT) Certification Program. The Georgia Department of Natural Resources, Environmental Protection Division (GA DNR EPD) regulates backflow tester certification under Rule 391-3-5-.13(7), and has contracted the Georgia Association of Water Professionals (GAWP) to administer the GBPAT program on its behalf.

To become a certified GBPAT tester, you must: (1) complete a GAWP-approved 32-hour Backflow Prevention Assembly Tester training course and pass the hands-on proctored exam administered at the course; (2) register separately with GAWP and pass the 100-question written exam (computer-based, administered by the Association of Boards of Certification / ABC); and (3) submit your GBPAT certification application to GAWP. Exam registration is through GAWP at gawp.org.

A High School Diploma, GED, or equivalent is required. The Georgia statewide certification is the standard required by GA EPD Rule 391-3-5-.13(7). Holders of active ASSE, ABPA, or UF TREEO backflow certifications may apply for reciprocity and skip the 32-hour course requirement, but must still pass the Georgia written exam and apply through GAWP.

• GAWP — Georgia Backflow Prevention Assembly Tester (GBPAT) Program
• GAWP — GBPAT Exam Registration
• GAWP — GBPAT Training Providers
• ABPA — Region 3
• ASSE Schools Directory (via IAPMO)
• UF TREEO — Backflow Courses

Training Providers

Where to Sign Up For Your Certification Exam

Georgia uses a two-part exam system. The hands-on proctored exam (testing on RPZ, double check valve, and pressure vacuum breaker) is administered at the end of your 32-hour GAWP-approved training course. The separate 100-question written exam is computer-based and administered by the Association of Boards of Certification (ABC) — you must register for it separately through GAWP at gawp.org. You may register for the written exam while you are already registered for the 32-hour course, but if you register within 2 weeks of the exam date, contact GAWP at (770) 618-8690 to confirm availability.

Written exam results take approximately 4–6 weeks to return. Grading takes place at the ABC offices. Once you pass both exams, complete the GBPAT Certification Application through GAWP.

• GAWP — GBPAT Exam Registration
• GAWP — GBPAT Certification Application

Recertification

Recertification is every three (3) years. To renew your GBPAT certification, you must complete 6 hours of backflow-specific continuing education before your expiration date and submit proof to GAWP. The 6 CE hours do not have to be from a provider on the GAWP-approved training list — any backflow-specific course with proof of attendance (course name, date, length, and trainer) is accepted.

GWWI offers a 6-hour Backflow Refresher course specifically designed for GBPAT recertification. Kruger's Training Academy offers a 6-hour renewal class ($350). The Water Tower / UF TREEO partnership in Buford also offers CE opportunities through their Georgia courses and the annual National Backflow Prevention Day event.

GAWP sends renewal reminders 6–12 weeks before expiration. Late recertification incurs fees and penalties. Contact GAWP at (770) 618-8690 or backflow@gawp.org to update your contact information.

• GAWP — GBPAT Recertification
• GWWI — Upcoming Courses

Official Resources

Georgia Association of Water Professionals (GAWP) — GBPAT Program Administrator

1655 Enterprise Way, Marietta, GA 30067

(770) 618-8690 | backflow@gawp.org

• GAWP — Georgia Backflow Prevention Assembly Tester (GBPAT) Program
• Georgia EPD — GBPAT Program Guidance Document (PDF, Sept 2021)
• Georgia EPD — Drinking Water Program
• Georgia Rule 391-3-5-.13 — Cross-Connection Control
• GAWP — Verify Backflow Tester Certification

Who Issues Certification?

In Hawaii, there is no single statewide backflow tester certification program. Instead, each county and water purveyor sets its own certification requirements under the framework of Hawaii Administrative Rules (HAR) Title 11, Chapter 21 — Backflow and Cross-Connection Control. Requirements can vary significantly by island, county, or individual water purveyor, so always confirm accepted certifications with your local water authority before enrolling in a course.

On Oahu, the Honolulu Board of Water Supply (BWS) requires testers to hold a Certificate of Competence from one of three recognized sources: PAMCA/UA Local 675, the USC Foundation for Cross-Connection Control and Hydraulic Research (USC FCCCHR), or the Cal-Nevada Section of the American Water Works Association (AWWA). The American Backflow Prevention Association (ABPA) is also accepted for recertification after a three-year period. Other islands — including the Big Island, Kauai, and Maui — maintain their own certified tester lists and may accept a broader range of certification programs (ABPA, ASSE, AWWA, and others).

Testing procedures statewide follow the USC Manual of Cross-Connection Control, 10th Edition. Recertification is every three (3) years. Reciprocity is generally available to testers who can show they passed a certification exam using the USC 10th Edition testing procedures.

• ABPA — Hawaii Chapter
• Hawaii AWWA (AWWA Hawaii Section)
• ASSE Schools Directory (via IAPMO)

Training Providers

Island-by-Island: Know Your Local Purveyor Requirements

Because Hawaii has no unified statewide certification program, accepted certifications and annual testing requirements vary by island and water purveyor. Here is a quick reference — always confirm current requirements directly with your local authority:

Oahu — Board of Water Supply (BWS): Accepts PAMCA/Local 675, USC FCCCHR, or Cal-Nevada Section AWWA for initial certification. ABPA is accepted for 3-year recertification. Annual BFPA testing required. BWS maintains a list of certified testers.

Big Island — Hawaii County Department of Water Supply: HRWA/ABPA-prep courses serve this island. Check with the Department of Water Supply, County of Hawai'i for their current accepted certification list.

Kauai — Department of Water, County of Kauai: Maintains its own certified tester list (updated January 2026). Accepts multiple certification programs — verify directly with the county.

Maui — Department of Water Supply, County of Maui: Has its own testing requirements. Verify accepted certifications directly with the Maui DWS.

Where to Sign Up For Your Certification Exam

The backflow testing training course provider typically includes or arranges a certification exam at the end of the training. HRWA courses include the ABPA Tester Certification Exam on the last day — but you must register for and pay the ABPA exam fee ($215) directly through ABPA separately from your HRWA course registration.

For Oahu, certification through PAMCA/Local 675 or USC FCCCHR is typically arranged through those organizations' training programs.

• ABPA — Hawaii Chapter Events

Recertification

Recertification is every three (3) years. For Oahu BWS, ABPA offers a recertification process accepted by BWS after the three-year period. HRWA may offer future recertification courses — watch their website. Reciprocity is generally available if you can show proof of passing a certification exam using the USC Manual of Cross-Connection Control, 10th Edition testing procedures.

Contact your local water purveyor to confirm current recertification options and accepted programs.

Official Resources

• State of Hawaii DOH — Safe Drinking Water Branch
• HAR Title 11, Chapter 21 — Backflow and Cross-Connection Control
• Oahu — Board of Water Supply (BWS) — BFPA Testing Program
• Kauai — Department of Water — Certified Backflow Tester List
• ABPA — Hawaii Chapter

Who Issues Certification?

The State of Idaho certifies backflow assembly testers (BATs) through the Idaho Board of Drinking Water and Wastewater Professionals, administered by the Division of Occupational and Professional Licenses (DOPL). Regulation is governed by IDAPA 58.01.08 (Drinking Water Rules) and IDAPA 24.05.01 (Board rules).

There are two main paths to initial certification: (1) Complete a DOPL-approved 32-hour BAT course, receive your certificate of completion, then schedule and pass the written exam through PSI Exams (test-takers.psiexams.com/abc-id) before submitting your Idaho license application to DOPL; or (2) Hold an active ABPA certification and apply to DOPL using the ABPA exam pathway. Note: as of July 17, 2023, the written exam must be passed before submitting your license application — the old process of applying first is no longer in use.

Important licensing update: As of October 14, 2025, Idaho BAT licenses have transitioned from annual to biennial (2-year) renewal cycles. Continuing education requirements for backflow assembly tester courses still require prior board approval (unlike other CE courses, which no longer require pre-approval as of July 1, 2024).

• DOPL — BAT Course Providers
• DOPL — BAT Application
• PSI Exams — Schedule Written Exam
• ABPA — Region 7

Training Providers

Where to Sign Up For Your Certification Exam

Idaho uses a two-step exam process. First, your written performance exam is administered by your training provider on the final day of the 32-hour course. Upon passing, you receive a certificate of completion.

Second, you must separately schedule and pass the written exam through PSI Exams — visit test-takers.psiexams.com/abc-id to schedule. This exam must be passed before you submit your Idaho BAT license application to DOPL. Contact PSI at (833) 256-1420 for scheduling assistance.

Alternatively, if you hold an active ABPA certification, you may use the ABPA exam pathway to apply directly — see the BAT Application on the DOPL website for details.

• PSI Exams — Schedule Idaho BAT Written Exam
• DOPL — BAT License Application (BPEP)
• DOPL — Exam & Application Process (Step-by-Step PDF)

Recertification

As of October 14, 2025, Idaho BAT licenses now renew on a biennial (2-year) cycle — previously annual. Recertification requires 0.8 CEUs (8 hours) of DOPL-approved backflow assembly tester continuing education per renewal cycle. Note: unlike general drinking water/wastewater CE courses, backflow assembly tester courses still require prior DOPL Board approval.

IRWA offers 8-hour hands-on BAT Re-Certification courses in Boise ($200) — Jun 26, 2026 is the next confirmed date. Northwest Backflow Educators offers 8-hour refresher courses at Garden City, Coeur d'Alene, and Idaho Falls throughout the year ($250–$300). BAT & Supply also offers an 8-hour Idaho refresher course.

• IRWA — Upcoming Events
• Northwest Backflow Educators — Schedule
• DOPL — BAT Guidelines (PDF)

Official Resources

Idaho Division of Occupational and Professional Licenses (DOPL) — Board of Drinking Water and Wastewater Professionals

Headquarters: 11341 W. Chinden Blvd., Boise, ID 83714

Mailing: 550 W. State St., Boise, ID 83702

(208) 334-3233 | wwp@dopl.idaho.gov

• DOPL — Board of Drinking Water & Wastewater Professionals
• DOPL — BAT Training Providers
• DOPL — Search / Verify a License
• Idaho Admin Rules — IDAPA 24.05.01 (Board of Drinking Water & Wastewater Professionals)
• Idaho DEQ — Water Training Event Calendar

Who Issues Certification?

Illinois uses a unique state credential called the Cross-Connection Control Device Inspector (CCCDI) approval, regulated by the Illinois Environmental Protection Agency (IEPA) under 35 Illinois Admin Code 604.1510. This is not the same as a standard ABPA, ASSE, or AWWA backflow tester certification — it is a specific Illinois state designation with its own requirements and test procedures.

To obtain a CCCDI approval, you must: (1) be a licensed plumber under the Illinois Plumbing License Law (225 ILCS 320/3), and (2) complete the IEPA-designated training course offered by the Environmental Resources Training Center (ERTC) at Southern Illinois University Edwardsville (SIUE), or by an IEPA delegate. Certified water supply operators who complete the ERTC training may receive a limited CCCDI approval for testing devices at their own facility.

Important: Illinois CCCDI testing procedures are specific to Illinois — they are NOT the same as the USC Manual of Cross-Connection Control 10th Edition procedures used in most other states. There is no reciprocity for out-of-state certifications. Annual license renewal is required between May 1 and June 30 each year, and a recertification course is required every three (3) years.

• ASSE Schools Directory (via IAPMO)
• Illinois AWWA (ISAWWA)
• SIUE ERTC — State Approved CCCDI Plumbers List

Training Providers

Where to Sign Up For Your Certification Exam

The CCCDI certification exam is administered by SIUE ERTC as part of the 4-day initial training course — you must pass both the written exam and hands-on practical testing to receive your CCCDI certificate. There is one chance to pass each section; failure of either section requires retaking the entire course.

Upon successful course completion, apply to the IEPA for your CCCDI approval. The Illinois EPA coordinates with SIUE ERTC on approvals. Contact ERTC at (618) 650-2030 or the IEPA Field Operations Section contact Drew at (618) 650-2206 with questions about the approval process.

Annual license renewal: All CCCDIs must renew their approval every year between May 1 and June 30 at siue.nbsstore.net.

• SIUE ERTC — CCCDI Registration Form
• SIUE ERTC — Annual CCCDI License Renewal
• Illinois EPA — Cross Connection Control

Recertification

Recertification is every three (3) years, administered through a virtual POD (period of development) system. Three POD cycles run concurrently:

POD #1 — Registration opened July 1, 2023; recertification due by June 30, 2026.

POD #2 — Registration opened July 1, 2024; recertification due by June 30, 2027.

POD #3 — Registration opened July 1, 2025; recertification due by June 30, 2028.

The recertification course is 8 hours and includes a written and practical exam. Due to the large number of license holders, the IEPA designed this program to be administered virtually only. Note: the annual renewal (May 1–June 30 each year) is separate from and in addition to the 3-year recertification requirement. Reciprocity: none.

• SIUE ERTC — CCCDI Recertification FAQ

Official Resources

Illinois Environmental Protection Agency — Field Operations Section

Contact: Drew — (618) 650-2206

• Illinois EPA — Cross Connection Control Program
• 35 Illinois Admin Code 604.1510 — CCCDI Requirements
• SIUE ERTC — CCCDI Certification Page (Approved Plumber List & Schedule)
• SIUE ERTC — State Approved CCCDI Plumbers List (Excel)

Who Issues Certification?

The State of Indiana certifies backflow device testers. The Indiana Department of Environmental Management (IDEM) oversees the backflow prevention program and approves training providers, while the Indiana Professional Licensing Agency (PLA) issues the actual license. To search for or verify a licensed tester, use the PLA's free license search at in.gov/pla.

To become certified, you must complete an IDEM-approved 35-hour training course, pass a written examination, and successfully complete practical tests on actual backflow prevention devices. After passing, apply to the Indiana PLA for your backflow device tester license. Testing follows the USC Manual of Cross-Connection Control, 10th Edition procedures. There is no reciprocity for out-of-state certifications.

• ABPA — Indiana Chapter
• IDEM — Cross Connection Control & Backflow Prevention Program
• Indiana PLA — Search / Verify a Backflow Device Tester License

Training Providers

Where to Sign Up For Your Certification Exam

The backflow testing training course provider typically administers both the written examination and the practical device tests as part of the course — call to confirm. After successfully passing both exams during the course, you apply to the Indiana Professional Licensing Agency (PLA) for your Backflow Device Tester license.

For ABPA exam availability in Indiana, check the ABPA Indiana Chapter calendar. Note: it is not fully confirmed whether Indiana accepts the national ABPA certification independently — verify with IDEM if pursuing the ABPA route.

• ABPA — Indiana Chapter
• Indiana PLA — Backflow Device Testers Search & Verify

Recertification

Recertification is every three (3) years. INSBC offers Re-Certification classes ($195) — check insbc.org for current dates. No reciprocity is accepted for Indiana backflow tester certification.

• INSBC — Re-Certification Classes

Official Resources

Indiana Department of Environmental Management (IDEM) — Office of Water Quality

• IDEM — Cross Connection Control & Backflow Prevention Manual
• IDEM — Drinking Water Permits Section (Program & Approved Schools)
• Indiana PLA — Search / Verify Backflow Device Tester License
• IDEM — Clean Water Contact

Who Issues Certification?

The State of Iowa regulates backflow prevention assembly testers (BPATs) through the Iowa Department of Inspections, Appeals, & Licensing (DIAL) — formerly the Iowa Department of Public Health (IDPH). No person may test or repair a backflow prevention assembly in Iowa unless they hold a current DIAL registration, under Iowa Code Chapter 135K and Iowa Administrative Code 641-26.

To obtain an initial BPAT registration, you must apply within 12 months of completing one of the following: a DIAL-approved 32-hour BPAT training course; a current third-party certification from ABPA or ASSE; or an out-of-state backflow tester or cross-connection credential from a state with similar or greater requirements. If applying with a DIAL-approved course, your training provider will upload your certificate directly to the DIAL licensing system (Amanda Portal) — nothing needs to be done prior to the course.

BPAT registration is valid for two years from the date of processing. The $72 registration fee is non-refundable. Late renewal penalties begin the day after expiration ($10/month, maximum $50).

• ABPA — Region 12 (Iowa)
• ASSE Schools Directory (via IAPMO)
• DIAL — BPAT Registration Page
• DIAL — Application & Renewal Instructions

Training Providers

Where to Sign Up For Your Certification Exam

The written and practical certification exams are typically administered by your training provider as part of the 32-hour course — confirm with your provider. After passing, your provider uploads your certificate to the DIAL Amanda Portal. You then apply for your BPAT registration at amanda-portal.idph.state.ia.us and pay the $72 registration fee.

Alternatively, if you hold a current ABPA or ASSE certification, or an approved out-of-state credential, you may apply directly with DIAL without taking the 32-hour course. See the ABPA Region 12 event calendar for Iowa ABPA exam dates.

• DIAL — Amanda Portal (Apply / Renew)
• DIAL — Application & Renewal Step-by-Step Instructions
• ABPA — Region 12 Events

Recertification

BPAT registration is valid for two (2) years from the processing date. To renew, you must provide one of the following: a DIAL-approved 5-hour recertification course certificate (uploaded by your provider); a current ABPA or ASSE certification; or an approved out-of-state credential (e.g. Nebraska Grade VI).

The 5-hour recertification course may be taken at any time during your registration period. Multiple providers offer both in-person and webinar formats — see the list above.

If your registration has been expired for up to two years, you can reinstate with a 5-hour course. If expired for more than two years, you must retake the full 32-hour initial BPAT training course.

• DIAL — BPAT Registration & Renewal

Official Resources

Iowa Department of Inspections, Appeals, & Licensing (DIAL) — Environmental Health Services

6200 Park Avenue, Suite 100, Des Moines, IA 50321

(515) 381-7397 | env.health@dia.iowa.gov

• DIAL — Backflow Prevention Assembly Tester Registration
• DIAL — BPAT Application & Renewal Instructions
• Iowa Administrative Code 481 Chapter 476 — Backflow Rules (PDF)

Who Issues Certification?

In Kansas, state-approved third parties — including ABPA, ASSE, AWWA, UF TREEO, and others — are responsible for certifying backflow testers. The Kansas Department of Health and Environment (KDHE) oversees the cross-connection control program. Because local jurisdictions (city, county, or water purveyor) can set their own backflow certification standards, requirements can vary significantly across the state. In some cases, the local jurisdiction itself may be responsible for certifying backflow testers.

Wichita note: Backflow testers in Wichita must be certified by KDHE AND separately registered with the City of Wichita Cross-Connection Control program. The City of Wichita does not provide certification classes — registration is handled separately through the City's portal at 1825 S. McLean Blvd, Wichita, KS 67213 (phone: 316-219-8916 for city registration only).

• ASSE Schools Directory (via IAPMO)
• ABPA — Region 12
• Kansas Department of Health and Environment (KDHE)

Training Providers

Where to Sign Up For Your Certification Exam

The backflow testing training course provider typically administers the certification exam (written and practical) at the end of the training course — call to confirm. JCCC and KC Backflow both administer ASSE exams on-site. ASSE scores can take 4–5 weeks to be returned after course completion — plan ahead if you have a certification deadline.

For ABPA exam dates, check the ABPA Region 12 event calendar. Some systems may also ask to recalibrate your test gauge — verify requirements with your local water purveyor.

• ABPA — Region 12 Events

Recertification

Recertification is every three (3) years. A refresher course plus written and practical exams are required. Some local water systems may also ask to recalibrate your test equipment at renewal.

Kansas City Backflow offers monthly recertification classes in the Olathe/Kansas City area ($475 for ASSE testers, $550 for conversion). PHCC KS offers Wichita-area recertification classes in June, September, and November 2026 ($215–$325 depending on membership). JCCC also offers recertification. KRWA runs recertification for rural Kansas testers.

Official Resources

• Kansas Department of Health and Environment (KDHE)
• KDHE — Public Water Supply Section

Who Issues Certification?

Kentucky has no state-level backflow tester certification program. Instead, backflow testers are regulated at the local water purveyor level — each water utility or purveyor sets its own certification requirements. Requirements can vary by city, county, or water purveyor.

The Bluegrass Cross Connection Prevention Association (BGCCPA) is the dominant certifying body in Kentucky, recognized by Kentucky American Water Company and its affiliates, Georgetown Municipal Water, Louisville Water, and most other major water utilities across the Commonwealth. After completing an approved 40-hour certification course, prospective testers register with BGCCPA (submit their completion certificate, pay membership fees, and provide contact info) to receive their BGCCPA Certified Backflow Prevention Device Tester registration. Certification is valid for 3 years, expiring January 31.

The Kentucky Association of Master Contractors (KAMC) is a secondary certifying body used by some purveyors, particularly in central Kentucky. KAMC-certified testers complete an approved 40-hour course, pay a $99 KAMC membership fee (for a 3-year period), and register with KAMC. Always confirm which certification your specific water purveyor accepts before enrolling in a course.

Testing procedures: USC Manual of Cross-Connection Control, 10th Edition.

• BGCCPA — Certification Requirements
• KAMC — Cross Connection Certification Program

Training Providers

Where to Sign Up For Your Certification Exam

The 40-hour certification course itself serves as the primary training and practical exam. After successfully completing an approved 40-hour course, you register with your certifying body — BGCCPA or KAMC — by submitting your completion certificate and paying the required fees. There is no separate state exam.

Always confirm with your local water purveyor which certifying body (BGCCPA or KAMC) they accept before enrolling in a course.

• BGCCPA — Certification Requirements & Registration
• KAMC — Cross Connection Certification

Recertification

Recertification is every three (3) years. Certification expires January 31 of the expiration year.

For BGCCPA certification: Renewal requires attending two 6-hour BGCCPA-hosted conferences during the 3-year certification period. No additional written or practical exam is required — just conference attendance, fees, and application submission to BGCCPA.

For KAMC certification: Renewal requires a 6-hour classroom + 3-hour hands-on recertification course, taken within 18 months prior to certification expiration. Test Gauge Inc. and Backflow 911 both offer KAMC recertification courses.

• BGCCPA — Certification Requirements (Renewal)
• Test Gauge Inc. — Kentucky Recertification Course

Official Resources

• Kentucky Energy and Environment Cabinet — Water
• 815 KAR 20:120 — Water Supply and Distribution (Kentucky Plumbing Code — Cross-Connection)
• Kentucky Title 401 KAR 8:020 — Water Supply Systems

Who Issues Certification?

Louisiana has two separate certification tracks for backflow testers, depending on your license type and scope of work:

General Tester (LDH path): The Louisiana Department of Health (LDH) — formerly the Department of Health and Hospitals — certifies General Backflow Testers who are not licensed plumbers. This is the path for most non-plumber testers. You must complete an LDH-approved training course, then apply to LDH for your General Tester certification. LDH maintains a State Approved General Testers list (updated April 27, 2026).

Water Supply Protection Specialist / WSPS (SPBLA path): The State Plumbing Board of Louisiana (SPBLA) issues the Water Supply Protection Specialist (WSPS) endorsement exclusively to licensed Louisiana Master Plumbers and Irrigators. This endorsement allows testing, installation, and repair of backflow assemblies. The SPBLA accepts ASSE or ABPA national certifications for the WSPS path — meaning a WSPS endorsement can be earned by passing an ASSE or ABPA exam through any approved provider, not necessarily in Louisiana.

If in doubt about which path applies to you, contact the LDH Engineering Services section or the SPBLA.

• LDH — Backflow Prevention & Cross-Connection Control
• LDH — State Approved General Testers (PDF, updated Apr 2026)
• SPBLA — WSPS Certification / Approved Providers

Training Providers

Where to Sign Up For Your Certification Exam

For the LDH General Tester path, the backflow testing training course provider administers the written and practical certification exam as part of the 40-hour course. After passing, apply to LDH for your General Tester certification.

For the SPBLA WSPS path, the ASSE or ABPA exam is administered on the last day of your training course. SPBLA accepts ASSE and ABPA national certifications — you submit your exam results to SPBLA to receive your WSPS endorsement.

Contact the SPBLA at spbla.com for WSPS application requirements and fees. Contact LDH Engineering Services for General Tester application questions.

• SPBLA — WSPS Certification & Application
• LDH — Backflow Prevention Engineering Services

Recertification

Recertification is every three (3) years for both the LDH General Tester and the SPBLA WSPS endorsement.

SAU Tech AETA offers WSPS/General Tester Recertification courses (2-day, $395) at multiple Louisiana locations throughout 2026 — see the schedule above. The 2026 Louisiana recertification schedule includes courses in New Orleans (Feb), Houma (Apr), Lafayette (Apr, Oct), and Lake Charles (Jun).

• SAU Tech AETA — 2026 Training Schedule

Official Resources

Louisiana Department of Health (LDH) — Engineering Services

628 North Fourth Street, P.O. Box 4489, Baton Rouge, LA 70821

Contact: ldh.la.gov/page/549 for current staff contact information

• LDH — Backflow Prevention & Cross-Connection Control
• LDH — State Approved General Testers List (PDF, updated Apr 27, 2026)
• LDH — Backflow Protection & Cross-Connection Control (PDF)
• SPBLA — WSPS Certification Program & Approved Providers

Who Issues Certification?

The State of Maine regulates backflow testers through the Drinking Water Program (DWP) of the Maine Center for Disease Control & Prevention (Maine CDC), a division of the Maine Department of Health and Human Services (DHHS). Maine requires testers to be certified by one of three accepted third-party organizations: ASSE (American Society of Sanitary Engineering), ABPA (American Backflow Prevention Association), or NEWWA (New England Water Works Association).

Maine does not issue its own separate state certification — holding a valid ASSE, ABPA, or NEWWA certification is sufficient to test backflow devices in Maine. NEWWA is the dominant certifying body for backflow testers in New England and is widely recognized and accepted by Maine water utilities. Once certified, contact Maine DWP with any registration questions.

• ABPA — Region 1 (New England)
• ASSE Schools Directory (via IAPMO)
• NEWWA — Backflow/Cross Connection Program
• NEWWA — Upcoming Training Calendar

Training Providers

Where to Sign Up For Your Certification Exam

The backflow testing training course provider typically administers the certification exam (written and practical) at the end of the training course — confirm with your provider. For NEWWA certification, the written and practical exams are given on the last day of the 4-day course. Upon passing, NEWWA issues your certification card, which is accepted in Maine.

For ABPA exam dates in the New England region, check the ABPA Region 1 calendar.

• NEWWA — Upcoming Course Calendar
• ABPA — Region 1 (New England)

Recertification

Recertification is every three (3) years. NEWWA requires certified testers to complete 0.3 CEUs and pass a performance (hands-on) exam every 3 years. NEWWA offers both an in-person Recertification Review Training (with practical exam) and a 3-hour online review course paired with an online performance exam — though the online exam path can only be used in alternating renewal cycles.

For ASSE recertification, contact your ASSE-approved provider (e.g. IAPMO BPI) for recertification course requirements and scheduling.

• NEWWA — Recertification FAQ

Official Resources

Maine Drinking Water Program (DWP) — Maine CDC / Division of Environmental and Community Health

Maine DHHS, 109 Capitol Street, Augusta, ME 04333

Phone: (207) 287-3707 | Fax: (207) 287-3005 | TTY: (800) 606-0215

• Maine DWP — Cross Connections & Backflow Prevention
• Maine DWP — NEWWA-Certified Tester List
• Maine DWP — Drinking Water Program Home

Who Issues Certification?

In Maryland, the Maryland State Board of Plumbing — under the Department of Labor's Division of Occupational and Professional Licensing — regulates backflow tester certification and maintains an official list of approved training providers. This is a state-specific program, not simply an acceptance of any third-party ABPA, ASSE, or AWWA certification.

To become certified, you must complete an approved 32-hour backflow training course from an authorized Maryland Board of Plumbing provider. To enroll, you must hold a valid Maryland Apprentice, Journey, or Master Plumber license. Acceptable alternatives include a WSSC authorization, an equivalent out-of-state plumbing license, or a state or federal government ID card.

Important: Maryland uses the University of Florida TREEO Backflow Prevention Theory and Practice textbook and testing procedures — NOT the USC Manual of Cross-Connection Control 10th Edition used in most other states. Certification is valid for 3 years with no grace period. If your certification expires, you must retake the full 32-hour course.

• Maryland Board of Plumbers — Approved Backflow Courses
• Maryland Board of Plumbers — License Search & Verify

Training Providers

Where to Sign Up For Your Certification Exam

The written and practical certification exams are administered by your training provider as part of the 32-hour course. After passing, your provider issues your Maryland Backflow Prevention Cross-Connection Control certification, valid for 3 years.

Important: there is no grace period. If your 3-year certification expires before you recertify, you must retake the full 32-hour initial course — the 8-hour recertification is only available to testers with a current, valid certification.

To verify your license or look up a certified tester, use the Maryland Board of Plumbers license search.

• Maryland Board of Plumbers — License Search

Recertification

Recertification is every three (3) years via an 8-hour recertification course from a Maryland Board-approved provider. There is NO grace period — if your certification expires, you must retake the full 32-hour initial course.

Maryland PHCC offers 8-hour recertification courses — call (410) 461-5977 for dates. Pipe Trades Technologies and Pipeline Training Institute also offer 8-hour recertification courses.

• Maryland PHCC — 8-Hour Recertification
• Pipe Trades Technologies — Backflow Recertification

Official Resources

Maryland Department of Labor — Division of Occupational and Professional Licensing

Maryland State Board of Plumbers

100 S. Charles Street, Tower I, Baltimore, MD 21201

• Maryland Board of Plumbers — Approved Backflow Course Providers
• Maryland Board of Plumbers — Licensing Home
• Maryland Board of Plumbers — License Search & Verify
• Maryland Board of Plumbers — Forms & Fees

Who Issues Certification?

The State of Massachusetts certifies backflow testers and cross-connection control surveyors through the Massachusetts Department of Environmental Protection (MassDEP) — Drinking Water Program, Cross Connection Control Program (MassDEP-DWP-CCCP), under 310 CMR 22.22 of the Massachusetts Drinking Water Regulations.

To become certified, you must pass a MassDEP-approved written and practical examination through an approved training provider. After passing, apply for your WS-10 Backflow Prevention Device Tester certification online via the EEA ePLACE Portal (eplace.eea.mass.gov) within 12 months of passing the exam. The application fee is $65. Note: MassDEP state certification is required separately even if you hold a NEWWA certification — Massachusetts is one of the states that requires its own state credential in addition to the NEWWA cert.

Massachusetts also offers a Cross-Connection Control Surveyor certification and a combined Backflow Tester + Surveyor certification through the same WS-10 application process. Testing procedures accepted by MassDEP include USC Manual of Cross-Connection Control, 10th Edition-based programs and NEWWA-approved courses.

• MassDEP — WS-10 Cross Connection Certification (Apply / Renew)
• EEA ePLACE Portal (Online Application)
• 310 CMR 22.22 — Cross Connection Regulations (PDF)
• NEWWA — Backflow/Cross Connection Program

Training Providers

Where to Sign Up For Your Certification Exam

The written and practical certification exams are administered by your training provider as part of the course. After passing, you must apply for your MassDEP WS-10 Backflow Prevention Device Tester certification online via the EEA ePLACE Portal within 12 months of passing the exam. The application fee is $65 (payable online by credit card, electronic check, or by mail).

For technical assistance with the ePLACE Portal, contact the EEA ePLACE Help Desk at ePLACE_helpdesk@mass.gov or (844) 733-7522 (M–F, 7:30 AM–5:00 PM). For program questions, contact the MassDEP Cross Connection Program: Otavio Paula-Santos at Otavio.Paula-Santos@mass.gov or (617) 556-1085.

• EEA ePLACE Portal — Apply for WS-10 Certification
• MassDEP WS-10 Instructions Fact Sheet (PDF)
• NEWWA — Upcoming Courses & Events

Recertification

Recertification is every three (3) years. To renew, you must show proof that during the 3-year certification period you: (1) completed at least 24 backflow prevention device tests, AND (2) received at least 3 Training Contact Hours (TCHs) in backflow or cross-connection control.

If you completed fewer than 24 tests: you must retake the practical examination of a full initial certification course, or attend the NEWWA Backflow Prevention Device Tester Recertification Review Training and pass the performance exam.

Alternative recertification path: You may submit 24 completed test reports directly to MassDEP-DWP-CCCP in lieu of attending an 8-hour recertification course — no class required if you have the documented tests.

NEWWA offers monthly recertification courses (6-hour review + performance exam) at their Holliston, MA headquarters and satellite locations throughout Massachusetts. If you fail the performance exam, a $160 re-exam fee applies. Recertification for cross-connection surveyors requires 3 TCHs and 3 completed surveys in the past 3 years.

• NEWWA — Recertification FAQ
• NEWWA — Upcoming Recertification Courses
• MassDEP — WS-10 Renewal Application

Official Resources

Massachusetts Department of Environmental Protection (MassDEP) — Drinking Water Program

Cross Connection Program Contact: Otavio Paula-Santos — Otavio.Paula-Santos@mass.gov | (617) 556-1085

ePLACE Help Desk: ePLACE_helpdesk@mass.gov | (844) 733-7522 (M–F 7:30 AM–5:00 PM)

• MassDEP — WS-10 Cross Connection Certification (Apply / Renew)
• 310 CMR 22.22 — Cross Connection Regulations
• MassDEP WS-10 Instructions Fact Sheet (PDF)
• 310 CMR 22.00 — Massachusetts Drinking Water Regulations

Who Issues Certification?

In Michigan, cross-connection control and backflow prevention programs are overseen through the Michigan Department of Environment, Great Lakes, and Energy (EGLE) under the Safe Drinking Water Act and associated cross-connection control rules.

Michigan currently requires ASSE 5110 certification for individuals testing backflow preventers for public water supplies. Following a 2023 interpretation update, testers must also be a Michigan licensed master plumber, journey plumber, or apprentice plumber working under direct supervision of a licensed plumber in order for test results to be accepted by public water supplies.

Local jurisdictions and water systems may impose additional requirements. Oakland County, Northville Township, Canton Township, and other local authorities specifically state that testers must possess both valid ASSE 5110 certification and Michigan plumbing licensure credentials. Always verify local acceptance requirements before enrolling in a course.

• Michigan EGLE — Cross Connection Control
• Michigan EGLE — Backflow Tester Credential FAQ
• ASSE Backflow Prevention Certification
• ABPA Tester Certification Program

Training Providers

Where to Sign Up For Your Certification Exam

Many Michigan training providers administer or proctor the ASSE written and practical certification examinations at the conclusion of the course. Michigan Backflow Institute, MPMCA, and MRWA all advertise ASSE certification-oriented training with practical wet lab testing.

ASSE 5110 certification generally requires documented industry experience, successful completion of a 40-hour training course, a written examination, and a hands-on practical examination. Michigan EGLE additionally requires plumbing licensure credentials for accepted public water supply testing.

• ASSE Backflow Prevention Certification
• Michigan EGLE — Cross Connection Control
• Michigan Backflow Institute

Recertification

ASSE certifications are generally valid for three (3) years. Michigan providers including Michigan Backflow Institute, MPMCA, and MRWA offer ASSE recertification training and examination opportunities.

Recertification typically includes both a written and practical hands-on examination. Michigan EGLE and local jurisdictions may require testers to maintain both current ASSE certification and qualifying Michigan plumbing licensure credentials.

• ASSE Backflow Prevention Certification
• MPMCA — Backflow Seminars
• Michigan Backflow Institute

Official Resources

Michigan Department of Environment, Great Lakes, and Energy (EGLE) oversees public water supply cross-connection control requirements and publishes guidance regarding tester credential requirements.

Oakland County, Northville Township, Canton Township, and other local jurisdictions also publish local cross-connection and certified tester requirements for property owners and contractors.

• Michigan EGLE — Cross Connection Control
• Michigan EGLE — Tester Credential FAQ
• Oakland County — Backflow Prevention Assembly Testers
• Northville Township — Cross Connection Control Program
• Canton Township — Residential Cross Connection Program

Who Issues Certification?

The Minnesota Department of Labor and Industry (DLI) certifies backflow prevention professionals and offers two distinct designations. A Backflow Prevention Tester (BT) certification allows the holder to test backflow prevention assemblies — no plumber license is required for this designation. A Backflow Prevention Rebuilder (BF) certification allows the holder to install, maintain, test, repair, replace, or rebuild backflow prevention assemblies — a current plumber license is required for this designation.

To obtain either certification, you must first earn the appropriate ASSE certification (ASSE 5110 for testers; ASSE 5110 + 5130 for rebuilders) through any ASSE-accredited school. After obtaining your ASSE certification, apply for your Minnesota DLI certification via the iMS online system at dli.mn.gov/ims. Note: ASSE 5110 requires a prerequisite of 5 years of industry-related experience.

Minnesota uses ASSE testing procedures for its certification standard — not the USC Manual of Cross-Connection Control 10th Edition used in most other states.

• Minnesota DLI — Backflow Prevention Certification
• Minnesota iMS — Apply / Renew Certification
• ASSE-Accredited Schools Directory (via IAPMO)
• Minnesota DLI — Check a License

Training Providers

Where to Sign Up For Your Certification Exam

The ASSE 5110 written and practical certification exams are administered by your training provider on the final day of the course. After passing, ASSE processes your certification — allow approximately 3–4 weeks for ASSE to issue your certification number, which will appear on the ASSE website (asse-plumbing.org).

Once you have your ASSE 5110 certification number, apply for your Minnesota DLI Backflow Prevention Tester (BT) or Rebuilder (BF) certification via the iMS online system at dli.mn.gov/ims. Contact DLI at 651-284-5034 or dli.license@state.mn.us with questions about the application process.

• Minnesota DLI — iMS Online System (Apply / Renew)
• DLI — BF/BT Registration Form (PDF)
• ASSE Schools Directory

Recertification

Recertification is every three (3) years, tied to your ASSE 5110 certification renewal. To renew your Minnesota DLI certification, you must submit proof of your current (renewed) ASSE certification to DLI via the iMS system.

ASSE 5110 recertification requires completing a recertification course including a written exam and practical testing of all four assembly types. Test Gauge Inc. (shopbackflow.com/minnesota-course-info) offers a Minnesota 3-year ASSE recertification class (max 10 attendees). Multiple JATCs listed above also offer recertification.

• Minnesota DLI — iMS Online Renewal
• Test Gauge Inc. — Minnesota Recertification

Official Resources

Minnesota Department of Labor and Industry (DLI) — Plumbing / Backflow Certification

Phone: (651) 284-5034 | Email: dli.license@state.mn.us

• Minnesota DLI — Backflow Prevention Certification
• Minnesota DLI — iMS License System (Apply / Renew / Check Status)
• DLI — Backflow Fact Sheet (PDF)
• DLI — BF/BT Registration Form (PDF)

Who Issues Certification?

The State of Mississippi certifies backflow prevention assembly testers (BPATs) through the Bureau of Public Water Supply of the Mississippi State Department of Health (MSDH). No person may test backflow prevention assemblies in Mississippi without holding a current MSDH BPAT certification.

To become certified, complete an MSDH-approved 32-hour training course (typically 4 days of training followed by a 5th day for written and practical exams), then register with the MSDH Bureau of Public Water Supply. Exams are either administered directly by the state or proctored by the course provider — confirm with your provider. After passing, a registration process with MSDH is required. Testing procedures follow the USC Manual of Cross-Connection Control, 10th Edition.

Recertification is every three (3) years. For renewal, testers generally only need to sit for the recertification exam — a full 32-hour course re-take is not required unless certification has lapsed significantly. Contact MSDH for specific recertification requirements.

• MSDH — Backflow Prevention Assembly Tester Program
• MSDH — Backflow Tester License Search
• MSDH — Bureau of Public Water Supply

Training Providers

Where to Sign Up For Your Certification Exam

Certification exams (written and practical) are either administered directly by the MSDH Bureau of Public Water Supply or proctored by the course provider — confirm with your provider before enrolling. After passing, a registration process with MSDH is required to obtain your official BPAT certification.

For recertification, testers generally only need to sit for the exam — contact MSDH at (601) 576-7518 to confirm current recertification exam procedures.

You can verify active BPA tester licenses using the MSDH license search database.

• MSDH — Backflow Tester License Verification
• MSDH Training Calendar (Water Supply)

Recertification

Recertification is every three (3) years. For renewal, testers generally only need to sit for the recertification exam — a full 32-hour initial course is not required. MsRWA offers recertification training ($225) alongside their initial certification courses. Contact MSDH Bureau of Public Water Supply at (601) 576-7518 to confirm current recertification exam scheduling and requirements.

• MsRWA — Backflow Recertification Training

Official Resources

Mississippi State Department of Health — Bureau of Public Water Supply

Phone: (601) 576-7518

• MSDH — Backflow Prevention Assembly Tester Program
• MSDH — Bureau of Public Water Supply
• MSDH — Backflow Tester License Search
• MSDH — Training Calendar (Water Supply Events)
• Mississippi Administrative Code — Licensing of Certified Testers

Who Issues Certification?

The State of Missouri regulates backflow prevention assembly testers through the Department of Natural Resources (DNR) under 10 CSR 60-11.030. Missouri recognizes two certifying bodies: the American Backflow Prevention Association (ABPA) and the American Society of Sanitary Engineering (ASSE). Certification is obtained by successfully passing both a written and hands-on performance examination through one of these organizations.

ASSE courses require a prerequisite of 5 years of industry-related experience (plumbing, pipefitting, or related field — irrigation experience is acceptable). ASSE takes 4–5 weeks to process and issue scores after course completion. ASSE also provides a 6-month grace period on expired cards to allow testers to take a recertification class. ABPA courses use USC 10th Edition test procedures; ASSE courses use ASSE testing procedures.

• Missouri DNR — Backflow Prevention
• Missouri DNR — Certified Backflow Tester List
• ABPA Tester Certification Program
• ASSE Backflow Schools Directory (via IAPMO)

Training Providers

Where to Sign Up For Your Certification Exam

For ASSE-path courses (Kansas City Backflow, Ranken Technical College), the ASSE written and practical exams are administered on the last day(s) of the 40-hour course. ASSE takes 4–5 weeks after the course to issue scores and certification cards — plan well ahead of any testing deadlines. Completing an ASSE course yields both Missouri DNR certification and an ASSE certification recognized in many other states.

For ABPA-path courses (Backflow Consulting & Training, Total Backflow Resources), the ABPA exam is administered on the Saturday following the 5-day course. ABPA exam registration is SEPARATE from course registration and must be arranged directly through ABPA.

Do not test backflow devices with an expired certification card — ASSE provides a 6-month grace period for testers to complete recertification before the card expires.

• ABPA — Tester Certification & Exam Information
• ASSE Schools Directory
• Missouri DNR — Certified Backflow Tester List

Recertification

Recertification is every three (3) years. ASSE provides a 6-month grace period after expiration to allow testers to take the recertification class and pass — but you are not certified to test devices if your card is expired. Kansas City Backflow offers monthly recertification courses in the Kansas City area ($475 for ASSE testers; $550 for conversions from other certifications). Ranken Technical College offers recertification in St. Louis. Backflow Consulting & Training offers monthly ABPA recertification review courses (3-day format).

Official Resources

Missouri Department of Natural Resources — Water Protection Program, Public Drinking Water Branch

Contact: Brandon Bach — brandon.bach@dnr.mo.gov | (573) 751-1137

P.O. Box 176, Jefferson City, MO 65102-0176

• Missouri DNR — Backflow Prevention Program
• Missouri DNR — Certified Backflow Tester List
• Missouri DNR — How to Become a Certified Backflow Tester
• 10 CSR 60-11 — Safe Drinking Water Commission Rules: Backflow Prevention (PDF)
• Missouri DNR — Backflow Prevention FAQ (PUB2158)
• Missouri DNR — BPAT Publication (PUB2016)

Who Issues Certification?

In Montana, backflow prevention assembly testers must hold a current certificate from one of the following: the American Backflow Prevention Association (ABPA), the American Society of Sanitary Engineering (ASSE), or a certification program from any other state. Montana's policy is notably broad — a valid backflow tester certification from any state is accepted by the Montana DEQ under ARM 17.38.305.

Cross-connection control in Montana is regulated by the Montana Department of Environmental Quality (DEQ) — not the Department of Health — under Administrative Rules of Montana (ARM) Title 17, Chapter 38, Subchapter 3. Testing procedures follow the USC Manual of Cross-Connection Control, 10th Edition. Recertification is every three (3) years.

Because Montana accepts out-of-state certifications, testers already certified in another state do not need to take an additional Montana-specific exam — their current certification is valid for testing in Montana as long as it remains current.

• Montana DEQ — Drinking Water Rules (Cross Connection section)
• ARM 17.38.305 — Cross Connections: Regulatory Requirements
• ABPA — Region 10
• ASSE Schools Directory (via IAPMO)

Training Providers

Where to Sign Up For Your Certification Exam

For ABPA-path courses (MRWS, BAT & Supply, Kruger's), the ABPA written and practical certification exams are administered separately from the course — register directly with ABPA at abpa.org. MRWS courses have approved ABPA exam dates that will be posted on the ABPA website; contact Christine Maday at MRWS if the exam dates are not yet visible.

For ASSE-path courses, the exam is administered on the final day of the course by the training provider.

Already certified in another state? Montana accepts any valid state backflow tester certification — no additional Montana exam is needed while your current cert is active.

• ABPA — Certification Exam Information & Events
• ABPA — Region 10 (Montana)

Recertification

Recertification is every three (3) years. MRWS typically offers recertification training alongside its initial certification courses — contact Christine Maday at (406) 595-3502 or cmaday@mrws.org for current recertification schedules. BAT & Supply also offers refresher/recertification courses.

Because Montana accepts any current state certification, testers who maintain their ABPA, ASSE, or other state certification are automatically current for Montana testing purposes.

Official Resources

• Montana DEQ — Drinking Water Rules (includes Cross Connection section)
• ARM 17.38.305 — Cross Connections: Regulatory Requirements
• Montana DEQ — Water Program Overview
• Groundwater Manual — Cross Connections and Backflow Prevention (PDF)

Who Issues Certification?

Nebraska certifies backflow prevention assembly testers as Grade VI Water Operators. The Grade VI designation is required for any individual who inspects, tests, and repairs backflow preventers with test ports installed to protect a public water system from backflow.

Training is overseen by the Nebraska Department of Water, Energy, and Environment (DWEE) — formerly the Nebraska Department of Energy & Environment (NDEE). The Grade VI license itself is issued by the Nebraska Department of Health and Human Services (DHHS) — Regulation and Licensure. To become certified, complete a DWEE-listed Grade VI training course, pass a written and practical examination, and apply to DHHS for your Grade VI license. Testing follows the USC Manual of Cross-Connection Control, 10th Edition. Recertification is required every three (3) years.

• DWEE — 2026 Nebraska Public Water Supply Training Calendar (PDF)
• DHHS
• Nebraska One-Stop License Portal — Grade VI
• ABPA — Region 12

Training Providers

Where to Sign Up For Your Certification Exam

For Grade VI initial certification, the written and practical examinations are typically administered at the conclusion of the 5-day Grade VI course by the training provider or a DWEE-approved proctor. After passing, apply to Nebraska DHHS for your Grade VI license at dhhs.ne.gov/licensure/Pages/Water-Operators.aspx.

ABPA exam events are also held independently throughout Nebraska — check the Eastern Nebraska ABPA Chapter and Region 12 ABPA events listed above. The 2026 DWEE Nebraska Public Water Supply Training Calendar is the most comprehensive source for exam and training dates across all providers.

For licensing questions, contact DHHS — Regulation and Licensure: Mike Wentink, (308) 535-8135, mike.wentink@nebraska.gov, 200 S. Silber Ave., North Platte, NE 69101-4200.

• DWEE — 2026 Nebraska Training Calendar (PDF)
• DHHS
• ABPA — Region 12

Recertification

Recertification is every three (3) years. Nebraska offers multiple paths for recertification: NeRWA offers 1-day recertification workshops at locations across the state (Nov–Dec 2026 in Wahoo and other locations); TBR offers standalone Zoom backflow recertification sessions (May 28, Jul 9, Nov 12, 2026) for convenience; LoNM/AWWA and CCC also run recertification workshops throughout the year.

Check the DWEE 2026 Nebraska Public Water Supply Training Calendar for the full list of recertification events across all providers.

Official Resources

Nebraska Department of Water, Energy, and Environment (DWEE) — Drinking Water Operator Licensing Program

DWEE Operator Licensing: (308) 530-3930 or (402) 471-0523

Nebraska DHHS — Regulation and Licensure (Grade VI License Issuance)

Contact: Mike Wentink — (308) 535-8135 | mike.wentink@nebraska.gov | 200 S. Silber Ave., North Platte, NE 69101-4200

• DWEE — 2026 Nebraska Public Water Supply Training Calendar (PDF)
• DHHS
• Nebraska DHHS — Title 179 Rules and Regulations (PDF)

Who Issues Certification?

In Nevada, state-approved third parties — including the California-Nevada Section of the American Water Works Association (CA-NV AWWA), the American Backflow Prevention Association (ABPA), and the American Society of Sanitary Engineering (ASSE) — are responsible for certifying backflow testers. The Nevada Division of Environmental Protection (NDEP) oversees water quality programs, but local jurisdictions (city, county, or water purveyor) set their own backflow tester certification standards, so requirements can vary significantly by location.

Northern Nevada note: Testers in the Reno/Sparks/Carson City/Lake Tahoe area typically certify through the CA-NV AWWA or ABPA — verify accepted certifications with your specific water purveyor (e.g., Truckee Meadows Water Authority).

Southern Nevada note: The Southern Nevada Health District (SNHD) enforces backflow protection requirements at food facilities, aquatic health facilities, and other permitted premises under NRS 439, NAC 444, and NAC 445A. Las Vegas Valley Water District and the Southern Nevada Water Authority administer compliance programs. Confirm accepted tester certifications with your local water utility before enrolling in a course.

Testing procedures: USC Manual of Cross-Connection Control, 10th Edition. Recertification is every three (3) years.

• ABPA — Region 6 (AZ, CA, HI, NV)
• CA-NV AWWA — Backflow Prevention Assembly Tester Certification
• ASSE Schools Directory (via IAPMO)
• NDEP — Nevada Division of Environmental Protection

Training Providers

Where to Sign Up For Your Certification Exam

For CA-NV AWWA certification (the most common Nevada path): Submit your exam application at least 20 days before your preferred exam date. Written exam is now computer-based (CBT, since June 1, 2022); the hands-on practical portion is in-person. Exam fee: $355 (member) / $385 (non-member). Apply through the CA-NV AWWA office: 10435 Ashford St., Rancho Cucamonga, CA 91730 — email Gina Enriquez at the CA-NV AWWA or fax (909) 481-4688. Consider selecting two exam dates on your application in case your first choice is full.

For ABPA certification: Check the ABPA Region 6 calendar for exam events in Nevada or neighboring states. Contact ABPA Region 6 Director Lyle Greenhill at Southern Nevada Backflow: (702) 341-6595.

• CA-NV AWWA — BPAT Certification & Exam Application
• ABPA — Region 6 Events

Recertification

Recertification is every three (3) years. B&L Backflow (Carson City) offers recertification classes for Northern Nevada testers. For CA-NV AWWA recertification, contact the CA-NV AWWA office or check their class calendar. For ABPA recertification, contact the Region 6 ABPA director.

• CA-NV AWWA — Class & Exam Schedule
• B&L Backflow — Education & Certification

Official Resources

Nevada Division of Environmental Protection (NDEP)

Phone: (702) 249-1284

Southern Nevada Health District — Backflow Protection Program: Contact Nate Diaz, diazn@snhd.org

• NDEP — Nevada Division of Environmental Protection
• NDEP — Water System Facilities and Components
• Southern Nevada Health District — Backflow Protection Program
• City of North Las Vegas — Backflow Prevention Program

Who Issues Certification?

In New Hampshire, backflow testers must be on the NHDES (New Hampshire Department of Environmental Services) approved tester list to legally test backflow prevention devices in the state. Regulation Env-Dw 505 governs backflow prevention requirements.

As of May 1, 2024, Env-Dw 505 was updated to accept three certification organizations: NEWWA (New England Water Works Association), ASSE (ASSE International / IAPMO — ASSE 5110), and ABPA (American Backflow Prevention Association). Previously, only NEWWA was recognized.

To get on the NHDES approved tester list, pass the certification exam from one of these three accepted organizations. Local jurisdictions may set additional requirements — always verify accepted certifications with your specific water purveyor. Recertification is every three (3) years.

Testers seeking certification in both NH and neighboring states (MA, CT, ME) should check whether additional state-level registration is required by each state separately.

• NHDES — ENV-DW 505 Backflow Prevention (Rules)
• NHDES — Approved Backflow Tester List (DWGB-11-3 PDF)
• NEWWA — Backflow/Cross Connection Program
• ABPA — Region 1 (New England)
• ASSE Schools Directory (via IAPMO)

Training Providers

Where to Sign Up For Your Certification Exam

For NEWWA certification, the written and practical exams are given on the last day of the 4-day course. After passing, NHDES adds you to the approved tester list (DWGB-11-3). Check communityhub.newwa.org for upcoming course dates, or look for NHDES-listed NEWWA courses at des.nh.gov/events.

For ABPA certification, register directly with ABPA for an exam event. Contact ABPA Region 1 for New England exam dates.

For ASSE certification, contact IAPMO BPI to arrange a course. Questions about listing on the NH approved tester list: Jason Michael Smith, NHDES — jason.m.smith2@des.nh.gov or (603) 271-2410.

• NHDES — Approved Backflow Tester List (DWGB-11-3)
• NEWWA — Upcoming Courses
• ABPA — Region 1 Events

Recertification

Recertification is every three (3) years. NEWWA requires 0.3 CEUs (typically a 6-hour recertification review course) plus passing a performance recertification examination every 3 years. Monthly recertification courses are available through NEWWA at Holliston, MA and satellite locations. A 6-month grace period applies after expiration.

For ABPA and ASSE recertification, follow the respective organization's requirements. Contact NHDES to confirm the renewal requirements for your specific certification pathway.

• NEWWA — Recertification FAQ
• NEWWA — Upcoming Recertification Courses

Official Resources

New Hampshire Department of Environmental Services (NHDES) — Drinking Water and Groundwater Bureau

Contact: Jason Michael Smith — jason.m.smith2@des.nh.gov | (603) 271-2410

• NHDES — ENV-DW 505 Backflow Prevention Rules
• NHDES — Approved Backflow Tester List (DWGB-11-3 PDF)
• NHDES — Drinking Water Program
• Concord, NH — Cross-Connection Program / Backflow Testing
• NH Statute — Backflow Device Requirements (RSA 485:11-a)

Who Issues Certification?

In New Jersey, the NJ Department of Environmental Protection (NJDEP) approves specific certifying agencies (CA-numbered organizations) under N.J.A.C. 7:10-10.8 of the New Jersey Safe Drinking Water Act. To legally test backflow prevention devices in New Jersey, a tester must hold a current certification from one of the NJDEP-approved certifying agencies on the official CA list.

New Jersey has its own state-specific test procedures per N.J.A.C. 7:10-10.6 — these differ from the USC Manual of Cross-Connection Control 10th Edition used in most other states. Ensure your training provider teaches the NJ-specific test procedures (including the state's own RPZ and DCVA test sequences). Annual device testing is required for permitted physical connections in NJ; tester certifications recertify every three (3) years.

Local water purveyors may impose additional requirements — always confirm accepted certifications with your specific water supplier.

• NJDEP — Certified Backflow Tester Certifying Agencies (Official CA List)
• NJDEP — Physical Connections Program
• N.J.A.C. 7:10-10.6 — Test Procedures

Training Providers

Where to Sign Up For Your Certification Exam

The NJ-specific certification exam is administered by your training provider at the end of the course. Upon passing, your certifying agency submits your information to the NJDEP database, and you receive an NJDEP backflow tester license number required for all NJ backflow test reports.

Note: New Jersey uses its own state-specific test procedures (N.J.A.C. 7:10-10.6) — confirm your provider teaches these NJ-specific procedures, not just the USC 10th Edition procedures. The NJ exam tests the state's own RPZ and DCVA test sequences.

For Kruger's, the NJ exam is offered at their New York courses — you can take the NJ-only exam or sit for both NJ and NY exams at the same session.

• NJDEP — CA List / Certified Tester Agencies
• Veterans Training Group — Enroll Online

Recertification

Tester certifications recertify every three (3) years. Veterans Training Group offers 8-hour recertification courses ($400). NEWWA offers monthly 6-hour recertification review + performance exam sessions. Contact your certifying agency for current recertification options.

Official Resources

• NJDEP — Certified Backflow Tester Certifying Agencies
• NJDEP — Physical Connections Program
• NJDEP — Division of Water Supply & Geoscience
• N.J.A.C. 7:10-10.6 — NJ Test Procedures for Backflow Devices

Who Issues Certification?

In New Mexico, state-approved third parties — including ABPA, ASSE, AWWA, and UF TREEO — are responsible for certifying backflow prevention assembly testers. The New Mexico Environment Department (NMED) Drinking Water Bureau oversees the program. Local jurisdictions (city, county, or water purveyor) can set their own standards, so requirements may vary by area.

To repair backflow prevention assemblies in New Mexico, you must be licensed in accordance with the New Mexico Construction Industries Licensing Act (plumber's license). Testing only does not require a plumber's license, but verify requirements with your specific water purveyor.

Testing procedures: USC Manual of Cross-Connection Control, 10th Edition. Recertification is every three (3) years.

• ABPA — Region 6
• ASSE Schools Directory (via IAPMO)
• NMED — Drinking Water Bureau Resources

Training Providers

Where to Sign Up For Your Certification Exam

The backflow testing training course provider typically administers the certification exam at the end of the training course — call to confirm. Viking II administers the exam at the conclusion of their 40-hour BPAT course.

For ABPA exam availability, check the ABPA Region 6 calendar. For ASSE, contact IAPMO BPI. Verify with your local water purveyor which certifying body they accept before enrolling.

• Viking II — Registration & 2026 Schedule
• ABPA — Region 6

Recertification

Recertification is every three (3) years. Contact your certifying agency for recertification requirements. Viking II offers customized recertification training — call (505) 883-3159 for scheduling.

Official Resources

New Mexico Environment Department (NMED) — Drinking Water Bureau

Phone: (505) 476-8620 | Toll-free: (877) 654-8720

Email: drinking.water@state.nm.us

• NMED — Drinking Water Bureau Resources
• City of Alamogordo — Backflow Prevention Program
• City of Las Cruces — Backflow Prevention / Regulatory Compliance
• Rio Rancho Code — Backflow Prevention and Cross Connection Control

Who Issues Certification?

The State of New York certifies backflow testers through the New York State Department of Health (NYSDOH) — Bureau of Public Water Supply Protection. NEWWA (New England Water Works Association) is one of the approved certifying bodies. Testers must complete a NYSDOH-approved initial certification course (2 CEUs), after which the provider submits the tester's information to NYSDOH and the tester is added to the state's backflow tester database — typically at no additional cost to the tester.

New York uses NEWWA/NYSDOH test procedures, which differ from the USC Manual of Cross-Connection Control 10th Edition used in most other states. Ensure your provider teaches the NYSDOH-approved procedures. There is no reciprocity — out-of-state certifications are not accepted for testing in New York.

Recertification is every three (3) years, requiring 0.6 CEUs and a 4-hour course with a hands-on section. Initial certification courses are also approved for renewal credits for certified water operators.

• NYSDOH — Approved Backflow Tester Certification Courses (Official List)
• NYSDOH — Cross-Connection Control Program
• NYSDOH — Backflow Tester Best Practice Guide
• NEWWA — Backflow/Cross Connection Program

Training Providers

Where to Sign Up For Your Certification Exam

The certification exam (written and practical) is administered by your training provider on the final day(s) of the initial course. Upon passing, the provider submits your information to NYSDOH and you are added to the state's certified backflow tester database — typically at no cost to you. You must apply for initial certification within 12 months of passing the examination.

For renewal, contact your certifying provider for upcoming 4-hour renewal course and hands-on exam dates. The NYSDOH course list page is updated regularly — always check health.ny.gov for the most current schedule.

Questions: contact NYSDOH at h2ocert@health.ny.gov or (800) 458-1158.

• NYSDOH — Full 2026 Approved Course Schedule
• NEWWA — Upcoming Events

Recertification

Recertification is every three (3) years. To renew, you must complete a 4-hour NYSDOH-approved renewal course that includes a hands-on section (0.6 CEUs). All providers listed above offer renewal courses. If your certification has been expired for more than 1 year, you must retake the full initial certification course.

There is no reciprocity — certifications from other states are not accepted for testing in New York.

• NYSDOH — Cross-Connection Control Program

Official Resources

New York State Department of Health — Bureau of Public Water Supply Protection

Empire State Plaza, Corning Tower Room 1110, Albany, NY 12237

Phone: (800) 458-1158 | Email: h2ocert@health.ny.gov

• NYSDOH — Approved Backflow Tester Certification Courses
• NYSDOH — Cross-Connection Control Program
• NYSDOH — Backflow Tester Best Practice Guide

Who Issues Certification?

North Carolina does not have a single state agency that issues backflow tester certifications. Instead, NC operates a local/municipal certification system — each major water utility maintains its own list of certified testers and recognizes a specific group of approved training schools. To legally test backflow prevention assemblies in a given NC water system, a tester must be certified by a school that the local utility recognizes.

The North Carolina Rural Water Association (NCRWA) is the primary statewide training provider and is recognized by all major NC water utilities (Durham, Charlotte, Raleigh, Greenville, and others). NCRWA courses are the most widely accepted path to getting on multiple local certified tester lists.

The state regulatory context ties to 21 NCAC 50 (NC Board of Examiners of Plumbing, Heating and Fire Sprinkler Contractors). North Carolina law requires that anyone interrupting the water supply must be licensed — including during backflow testing when shutoff valves are closed. As a result, backflow testing must be performed or supervised by someone with a valid NC plumbing contractor license. Installation and repair of backflow preventers requires a licensed plumber. Testing procedures: USC Manual of Cross-Connection Control, 10th Edition.

If you plan to test in multiple NC jurisdictions, prioritize NCRWA certification — it is accepted by the most utilities statewide.

• NCRWA — Backflow Cross Connection Training
• NCRWA — Backflow Certified Testers List
• NC Board of Examiners — Plumbing, Heating & Fire Sprinkler Contractors

Training Providers

Where to Sign Up For Your Certification Exam

The backflow testing certification exam (written and practical) is administered at the end of your training course. After passing, your training school notifies the relevant water utilities, and you may be added to their certified tester lists.

Because NC certification is local/utility-based, you should verify which 'approved schools' your local water utility recognizes before registering for a course. NCRWA certification is accepted by the broadest range of NC utilities. Pre-registration is required for all NCRWA classes — no walk-ins accepted. Register at web.ncrwa.org at least 5 business days before the class start date.

Note: To test backflow devices on Durham's water system, an additional $50 online Orientation class and annual proof-of-employment documentation are required, even if certified through a recognized reciprocity school.

• NCRWA — Backflow Cross Connection Classes & Registration
• NCRWA — Event Calendar
• City of Durham — Certified Backflow Tester Courses
• Raleigh Water — Backflow Tester Resources

Recertification

Recertification is every three (3) years for most NC water utilities (Durham, Charlotte, Raleigh, and others). Greenville Utilities Commission (GUC) is an exception — GUC requires recertification every two (2) years.

NCRWA offers recertification training — contact Mac Merritt at (336) 590-2020 or training@ncrwa.org for upcoming recertification class dates and locations. If your certification expires, you may need to retake the full initial certification course — check with your local utility.

• NCRWA — Tester and Re-Tester Guidelines
• Greenville Utilities — Backflow (2-Year Recert)

Official Resources

North Carolina has no single state backflow tester certification agency — contact your local water utility's Cross Connection Control office for certification requirements and approved school lists.

NC Board of Examiners of Plumbing, Heating and Fire Sprinkler Contractors (21 NCAC 50) governs contractor licensing requirements that apply to backflow tester employment.

• NCRWA — Backflow Cross Connection Training Program
• NCRWA — Backflow Certified Testers List
• NC Board of Examiners — Plumbing, Heating & Fire Sprinkler Contractors
• NC DEQ — Drinking Water Operator Certification
• City of Durham — Certified Backflow Tester Courses
• Raleigh Water — Backflow Tester & Installer Resources
• Greenville Utilities — Backflow Prevention Program

Who Issues Certification?

In North Dakota, two agencies are involved in backflow tester certification. The North Dakota Department of Environmental Quality (ND DEQ) — Municipal Facilities Division — oversees the Backflow Prevention and Cross Connection Control (BPCCC) program for public water systems under ND Administrative Code 33.1-17-01-19. The North Dakota State Plumbing Board maintains the official list of certified backflow assembly testers and handles licensure.

Testing of backflow prevention assemblies must be conducted by a certified tester listed on the ND State Plumbing Board's certified tester roster. Installation and repair of backflow prevention assemblies must be performed by a licensed plumber. Local jurisdictions can set their own backflow standards, so requirements may vary by city, county, or water purveyor.

Initial certification requires completing a 40-hour course (Monday–Thursday classroom and hands-on, Friday exam). Certification is valid for three (3) years. Testers may recertify up to six (6) months after their expiration date, but the certification is not valid during the expired period — no testing should be performed while expired. Completing the initial certification course qualifies for 12 Continuing Education Credits for ND water and wastewater operators. Small system operators may qualify for operator reimbursement for the training cost.

Testing procedures: USC Manual of Cross-Connection Control, 10th Edition.

• ND State Plumbing Board — Certified Backflow Assembly Testers
• ND DEQ — Backflow Prevention & Cross Connection Control Program
• NDRW — 40-Hour Backflow Preventer Tester Certification Course

Training Providers

Where to Sign Up For Your Certification Exam

The written and hands-on certification exams are administered on the Friday of the 40-hour course. Students must pass both the written and hands-on exams to receive certification as an approved Backflow Prevention Assembly Tester. After passing, you will be added to the ND State Plumbing Board's certified backflow assembly tester list.

For current 2026 course dates and locations, visit backflowpreventionservices.com or check the ND DEQ BPCCC page for posted upcoming trainings. Contact the ND State Plumbing Board at (701) 328-9977 or ndplumb@nd.gov with licensing questions.

• Backflow Prevention Services — Course Information
• ND DEQ — BPCCC Program (Upcoming Trainings)
• ND State Plumbing Board — Certified Tester List

Recertification

Recertification is required every three (3) years. Testers may recertify up to six (6) months after their certification expiration date, but the certification is NOT valid during the expired period — no backflow testing should be performed while expired.

Backflow Prevention Services offers 1-day recertification courses — check backflowpreventionservices.com for upcoming recertification dates or contact them to request a course in your area. Recertification qualifies for 12 Continuing Education Credits for ND water/wastewater operators.

Official Resources

ND DEQ — Municipal Facilities Division (BPCCC Program)

Contact: Jacob Schafer — jrschafer@nd.gov | (701) 328-6375

4201 Normandy Street, Bismarck, ND 58503-1324

ND State Plumbing Board (Certified Tester Licensing)

1110 College Drive, Suite 210, Bismarck, ND 58501

Phone: (701) 328-9977 | Fax: (701) 328-9979 | ndplumb@nd.gov

• ND DEQ — Backflow Prevention & Cross Connection Control
• ND State Plumbing Board — Certified Backflow Assembly Testers
• NDRW — 40-Hour Backflow Tester Certification Course Info
• NDRW — Backflow Prevention / Cross Connection Control

Who Issues Certification?

The State of Ohio certifies backflow technicians through the Division of Industrial Compliance (DIC) of the Ohio Department of Commerce, under Ohio Revised Code § 3703.21 and Ohio Administrative Code § 1301:3-7.

Important Ohio distinction: Ohio backflow technician certification applies specifically to ISOLATION backflow prevention devices — devices that prevent backflow within a building, regulated by the Ohio building code. The certification requirement does NOT apply to containment backflow prevention devices (installed at or near the water meter/service connection by a public water system). Many Ohio water purveyors run separate certification programs for containment device testers.

To qualify for initial certification, you must have at least 5 years of experience in the plumbing industry (with a plumbing contractor, hydronic contractor, or fire protection company) OR 5 years in the water purveyor industry OR a current plumbing inspector certification OR an Ohio EPA Class I distribution or water treatment operator license. You must also complete a 24-hour approved course (including mandatory hands-on testing and repairing examination) and pass the state exam administered by the Division of Industrial Compliance.

Reciprocity: If you hold a current backflow certification from another state, the Division may allow you to complete an 8-hour Ohio recertification course (instead of the full 24-hour course) to obtain Ohio certification. Contact DIC to confirm eligibility.

Ohio uses its own Backflow Prevention & Cross-Connection Control Manual for test procedures — not the USC Manual of Cross-Connection Control 10th Edition used in most other states.

• Ohio DOC — Backflow Technician Certification (Overview)
• Ohio DOC — Approved Backflow Training Agencies (Official List)
• Ohio DOC — Backflow Certification Lookup
• Ohio Admin Code 1301:3-7 — Backflow Rules

Training Providers

Where to Sign Up For Your Certification Exam

Ohio's certification process has two steps: (1) complete an approved 24-hour training course from a DOC-approved agency (which includes a mandatory hands-on exam), and (2) apply to and pass the state exam administered by the Division of Industrial Compliance.

Before attending any course, you must apply to the Division of Industrial Compliance for approval to take the training program. Submit your application (with the application fee) to the Division and wait 2–3 weeks for approval. Once approved, register with a DOC-approved training agency.

For questions about the application process, email BCCTrade@com.ohio.gov or contact your training provider. The Industrial Compliance Customer Portal (icportal.com.ohio.gov) is used for certification lookup and online applications.

Out-of-state certified testers: contact DIC at BCCTrade@com.ohio.gov to inquire about the 8-hour reciprocity recertification path.

• Ohio DOC — Backflow Certification Overview & Application
• Ohio DOC — Approved Training Agencies (Full List)
• Ohio DOC — Certification Lookup
• Ohio DOC — Backflow Prevention Manual (PDF)

Recertification

Recertification is required every three (3) years. To renew, you must complete a minimum 8-hour backflow course from an approved training agency, pass a mandatory practical test administered by an approved training agency, and pay the $75 renewal fee.

Contact your approved training provider for upcoming recertification dates. APHC Backflow (aphcbackflow.com) and OTCO (otco.org) both offer recertification courses. Multiple UA local unions also offer recertification for their members.

• Ohio DOC — Backflow Recertification Information
• Ohio Admin Code 1301:3-7 — Recertification Requirements

Official Resources

Ohio Department of Commerce — Division of Industrial Compliance (Backflow Program)

77 South High Street, 23rd Floor, Columbus, OH 43215-6133

Email: BCCTrade@com.ohio.gov

• Ohio DOC — Backflow (applications, exams, certification info)
• Ohio DOC — Approved Backflow Training Agencies
• Ohio DOC — Backflow Certification Lookup
• Ohio DOC — Backflow Prevention Manual (PDF)
• Ohio EPA — Backflow / Cross-Connection Manual (PDF)
• Ohio Admin Code 1301:3-7 — Backflow Technician Certification Rules

Who Issues Certification?

In Oklahoma, state-approved third parties — primarily ABPA (American Backflow Prevention Association) and ASSE (American Society of Sanitary Engineering) — are responsible for certifying backflow testers. There is no single state agency that issues backflow tester certifications. Local jurisdictions (city, county, or water purveyor) set their own backflow certification standards and may require ABPA, ASSE, or another recognized certification. Requirements can vary significantly by area.

Most Oklahoma jurisdictions reference ASSE or ABPA certification as acceptable. Tulsa, for example, references ASSE/ABPA certification under Tulsa Title 14 §901.6.3. Always verify accepted certifications with your specific water purveyor before enrolling in a course.

Testing procedures: ABPA-path courses use the USC Manual of Cross-Connection Control, 10th Edition; ASSE-path courses use ASSE testing procedures. Recertification is every three (3) years.

• ABPA — Region 4 (Oklahoma)
• ASSE Schools Directory (via IAPMO)
• Oklahoma Admin Code 252:626-5-15 — Cross Connections

Training Providers

Where to Sign Up For Your Certification Exam

For ASSE certification (IAPMO BPI), the exam is administered on the last day of the 40-hour course. All training and test fees are included in the course registration.

For ABPA certification (Kruger's or other ABPA prep providers), the ABPA exam must be registered separately through ABPA. Check the ABPA Region 4 calendar for exam events in Oklahoma or neighboring states.

Always verify accepted certifications with your local water utility before enrolling. Most Oklahoma jurisdictions accept either ASSE or ABPA certification.

• ABPA — Region 4 Events & Exam Dates
• IAPMO BPI — Oklahoma Course Schedule

Recertification

Recertification is every three (3) years. Contact your certifying organization (ASSE or ABPA) for recertification course requirements and scheduling. IAPMO BPI offers ASSE recertification courses nationally — contact (855) 536-2800 for Oklahoma options.

Official Resources

Oklahoma Department of Environmental Quality (ODEQ) — Operator Certification Unit

Note: ODEQ Operator Certification primarily covers water/wastewater plant operators. For backflow tester certification, contact your local water utility or certifying body (ASSE/ABPA) directly.

Phone: (405) 702-8228

707 N Robinson, Oklahoma City, OK 73102 | Mailing: P.O. Box 1677, Oklahoma City, OK 73101-1677

• ODEQ — Operator Certification
• Oklahoma Admin Code 252:626-5-15 — Cross Connections
• ABPA — Region 4 (Oklahoma)

Who Issues Certification?

The Oregon Health Authority (OHA) — Drinking Water Services, Cross-Connection Control Program — issues backflow tester and cross connection specialist certifications in Oregon. OHA maintains a 2-year certification cycle and a public list of certified backflow testers.

To earn Backflow Assembly Tester certification, complete a 5-day OHA-approved course and apply to OHA within 12 months of completing the course. Your application must include proof of high school diploma or equivalent and the $195 application fee (prorated to $97.50 for the last 12 months of the certification cycle).

Oregon-specific contractor license requirement: If you test backflow prevention assemblies for a fee, you or your company must hold a Construction Contractors Board (CCB) license or Landscape Contractors Board (LCB) license. A CCB or LCB license is required to appear on OHA's public list of certified backflow testers.

Certifications expire December 31st every two years based on the first letter of your last name: A–K expire in even-numbered years (2024, 2026...); L–Z expire in odd-numbered years (2025, 2027...). New applicants receive cards expiring less than 2 full years from issue depending on when they apply.

Reciprocity is available: OHA may issue certification based on reciprocity for testers who currently hold a valid certification from another state that is equivalent to OHA standards. See the OHA tester reciprocity application below.

• OHA — Backflow Tester Certification Requirements & Application
• OHA — Approved Training Providers List
• OHA — Public List of Certified Backflow Testers
• OHA — Tester Reciprocity Application (PDF)
• Oregon CCB — Construction Contractors Board

Training Providers

Where to Sign Up For Your Certification Exam

The OHA-approved certification exam (written and practical) is administered at the end of your 5-day training course by your provider. After passing, apply to OHA for your Backflow Assembly Tester certification within 12 months.

Applications must include: completed and signed OHA application, copy of high school diploma/GED/college degree, and the $195 application fee. Pay by check (payable to OHA Cashier, mail to PO Box 14260, Portland OR 97293) or by credit card online.

For reciprocity certification (currently certified in another state), submit the Tester Reciprocity Application to OHA. For questions, contact OHA at cross.connection@odhsoha.oregon.gov or fax 971-673-0694.

• OHA — Tester Certification Application (PDF)
• OHA — Tester Reciprocity Application (PDF)
• OHA — Pay Certification Fee Online

Recertification

Oregon certifications renew every two (2) years. Certifications expire December 31st in the appropriate year based on your last name: A–K expire in even-numbered years (2024, 2026, 2028...); L–Z expire in odd-numbered years (2025, 2027, 2029...).

For renewal, complete the OHA renewal requirements before your December 31st expiration date. The renewal fee is also $195 (prorated to $97.50 for the last 12 months of the cycle). If your contact information changes, notify OHA immediately — failure to do so can result in delayed renewal or lapsed certification.

For Specialist Recertification courses, contact West Coast Cross Connection at (503) 871-9450 or scott@westcoastcrossconnection.com.

• OHA — Certification Renewals
• OHA — Certification FAQ

Official Resources

Oregon Health Authority — Drinking Water Services, Cross-Connection Control Program

Email: cross.connection@odhsoha.oregon.gov | Fax: 971-673-0694

Mail: DWS-Cross Connection, PO Box 14260, Portland, OR 97293

• OHA — Tester and Specialist Certification Overview
• OHA — Approved Training Providers
• OHA — Public List of Certified Backflow Testers
• OHA — Cross-Connection Control Program Home
• OHA — Administrative Rules (Cross-Connection)
• OHA — Additional Resources

Who Issues Certification?

Pennsylvania has no single state agency that certifies backflow testers. Each local jurisdiction or water purveyor sets its own backflow tester certification standards. Most Pennsylvania water purveyors accept ASSE (American Society of Sanitary Engineering) or ABPA (American Backflow Prevention Association) certification. PA DEP Chapter 109.709 requires public water suppliers to develop and implement cross-connection control programs, but the state does not issue backflow tester credentials directly.

For most of Pennsylvania, completing an ASSE 5110 backflow tester certification course from an approved provider is the most widely accepted path. The PRWA (Pennsylvania Rural Water Association), in partnership with PAWSC (PA Water Specialties), is the dominant open-enrollment ASSE-approved provider running courses at multiple locations throughout the year.

Philadelphia is a notable exception: the Philadelphia Water Department (PWD) maintains its own City-Certified Backflow Prevention Technician program with its own registration process and approved tester list — separate from state-level ASSE/ABPA certification. If you plan to test in Philadelphia, see the Philadelphia section below.

ASSE certification requires a prerequisite of at least 5 years of experience in plumbing, sprinkler fitting, or a closely related field. Pennsylvania uses ASSE testing procedures — not the USC Manual of Cross-Connection Control 10th Edition used in many other states.

• PRWA — Backflow Training Courses (Current Schedule)
• ASSE Schools Directory (via IAPMO)
• ABPA — Region 2 (Northeast / Pennsylvania)
• Philadelphia Water Department — Backflow Compliance

Training Providers

Where to Sign Up For Your Certification Exam

For ASSE certification (PRWA/PAWSC courses): the ASSE 5110 written and practical exam is administered on the last day of the 5-day initial course. Register directly at prwa.com/buy-category/training/backflow. Payment required at time of registration. ASSE prerequisite: 5 years of experience in plumbing, sprinkler fitting, or a closely related field — must be demonstrated.

For ABPA certification: contact Kruger's Training Academy or check the ABPA Region 2 calendar for Pennsylvania exam events.

For Philadelphia testing specifically: register with the Philadelphia Water Department using Form CR-100 (Certified Backflow Assembly Technician Registration Form). See water.phila.gov/backflow/ for the current process and approved tester lists.

Always verify accepted certifications with your local water purveyor before enrolling. Most Pennsylvania utilities accept ASSE or ABPA certification.

• PRWA — Backflow Course Registration (2026 Schedule)
• Philadelphia Water Department — Become a City-Certified Backflow Prevention Technician (PDF)
• Philadelphia Water — Form CR-100 Registration
• ABPA — Region 2 (Pennsylvania)

Recertification

Recertification is every three (3) years. PRWA offers multiple recertification pathways:

• ASSE #874 (Conversion/Recertification, 3-day): for testers already certified by ASSE, NEWWA, BMI, or other recognized organizations. Converts non-ASSE certifications to ASSE. Must have a current tester certification to attend.

• ASSE #3478 (Repair Certification/Recertification, 3-day): provides repair certification AND automatically recertifies for testing. Upcoming: Apr 20–22, 2026 (Pittston, 5 seats remaining) and Jul 20–22, 2026 (Pittston, deadline Jul 1, 2026).

• ASSE #5110 (Recertification only): for ASSE-certified testers seeking recertification without repair. Contact PRWA for scheduling.

See prwa.com/buy-category/training/backflow for the full current recertification schedule.

• PRWA — 2026 Backflow Recertification Courses

Official Resources

Pennsylvania has no single state certification agency for backflow testers. For regulatory context:

PA DEP — Bureau of Safe Drinking Water, Chapter 109.709 (Cross-Connection Control requirements for public water suppliers)

Philadelphia Water Department — City-Certified Backflow Prevention Technician program: water.phila.gov/backflow/

PRWA contact for backflow training: Stacey Walker — (484) 561-5192 — swalker@prwa.com

• PA DEP — Cross-Connection Workbook (PDF)
• Philadelphia Water Department — Backflow Compliance
• Philadelphia Water — Approved Backflow Technicians List (Domestic Systems)
• Philadelphia Water — Approved Backflow Technicians List (Fire Systems)
• PRWA — Backflow Training (Full 2026 Schedule)

Who Issues Certification?

Rhode Island has no state-level backflow tester certification program. Certification is determined entirely by local water purveyors — each utility sets its own standards for which certifications it accepts.

Providence Water is the dominant water utility in Rhode Island and sets the de facto standard for most of the state. Providence Water accepts the USC Method-based programs (including Kruger's New England Backflow Tester Program), ABPA, NEWWA, and ASSE certifications. The vast majority of smaller RI water purveyors follow similar acceptance standards.

In rare cases, some RI water purveyors may require a Massachusetts state license registration in addition to your certification — but this is uncommon. Always verify accepted certifications directly with your specific water purveyor before enrolling.

Testing procedures: USC Manual of Cross-Connection Control, 10th Edition. Recertification is every three (3) years.

• ABPA — Region 1 (New England, including Rhode Island)
• NEWWA — Backflow/Cross Connection Program
• Providence Water — Backflow / Cross-Connection

Training Providers

Where to Sign Up For Your Certification Exam

The certification exam (written and practical) is administered by your training provider at the end of the course. After passing, no separate state registration is required in Rhode Island — your certification is recognized directly by local water purveyors.

For ABPA exam events in New England, check the ABPA Region 1 calendar. Kruger's can proctor ABPA exams at their courses if your specific utility requires a third-party ABPA certification.

Always verify accepted certifications with your specific water utility before enrolling. For Providence Water questions, contact (401) 521-6300.

• NEWWA — Upcoming Courses
• ABPA — Region 1 (New England) Exam Events

Recertification

Recertification is every three (3) years. NEWWA offers monthly recertification courses (6-hour review + performance exam) at their Holliston, MA headquarters and satellite locations in New England. For ABPA recertification, contact ABPA Region 1 for New England exam events. Kruger's can also arrange private recertification courses in Rhode Island (min. 10 students).

• NEWWA — Recertification FAQ
• NEWWA — Upcoming Courses & Events

Official Resources

Rhode Island has no state-level backflow tester certification. For regulatory context and utility-specific requirements:

Rhode Island Department of Health (RIDOH) — Center for Health Equity & Environmental Health — Drinking Water Program

Providence Water — (401) 521-6300 — provwater.com (dominant RI water utility; accept USC Method, NEWWA, ABPA, ASSE)

Note: East Providence has migrated backflow test report submission to rpzflow.com as of April 1, 2026 — testers submitting test results in East Providence must create an account at rpzflow.com.

• RI Department of Health — Drinking Water Program
• Providence Water — Applications, Inspections & Permits
• RI General Assembly — Cross Connection Control

Who Issues Certification?

South Carolina certifies backflow testers through the Bureau of Water — Drinking Water Section of the South Carolina Department of Environmental Services (SC DES). Note: as of July 1, 2023, the former SC DHEC split into two agencies. Environmental functions, including the backflow prevention certification program, moved to SC DES. All references to 'DHEC' in older materials now refer to SC DES.

South Carolina issues three types of tester credentials: General Tester (may test for the general public), Limited Tester (private use only, not for hire), and Inspector Tester (typically involved in backflow program management, not for public sale of services).

To obtain initial certification, you must attend all four days of an SC DES-approved workshop, pass a written exam, pass a hands-on exit exam on PVB, DCVA, and RP assemblies, and own or have clear access to appropriate test equipment. SC DES uses its own test procedures — not the USC Manual of Cross-Connection Control 10th Edition used in most other states.

South Carolina also offers reciprocal certification with the UF TREEO program — testers certified through UF TREEO courses hosted by Palmetto Alliance Institute can receive SC DES certification, and SC DES-certified testers can attend a crossover class to receive UF TREEO certification.

• SC DES — Cross Connection Control & Backflow Prevention
• SC DES — Certified Backflow Testers List (PDF, 03/2026)
• SC Regulations R.61-58.7(F) — Cross Connection Control

Training Providers

Where to Sign Up For Your Certification Exam

To become SC DES-certified, complete a 4-day approved workshop (Palmetto Alliance Institute or a state-run SC DES course), then pass the written and hands-on exams administered as part of the course. SC DES requires attendance at all four days of the workshop. You must own or have clear access to appropriate backflow test equipment before the exam.

After passing your initial certification course, SC DES will issue your backflow tester license. There are three certification types — General, Limited, and Inspector — make sure you register for the type appropriate for your intended scope of work.

For recertification, contact SC DES for a study guide and to schedule the exam, or retake the full 4-day workshop ($250). Palmetto Alliance Institute also offers an online recertification refresher course followed by an on-site written and wet lab practical exam.

Charleston testers: after obtaining SC DES certification, you must also complete a CWS orientation to test on the Charleston Water System — see the Charleston Water System entry above.

• SC DES — Backflow Prevention Certification Program
• Palmetto Alliance Institute — Backflow Courses
• Charleston Water System — Become an Approved Tester

Recertification

Recertification is every three (3) years. The recertification exam includes a 25-question written exam and hands-on testing of DCVA, PVB, and RP assemblies.

Two paths: (1) Request a study guide from SC DES, review independently, then schedule the recertification written and hands-on exam at an SC DES-authorized site. (2) Retake the full 4-day certification workshop ($250 per person).

Palmetto Alliance Institute offers an online recertification refresher course followed by an on-site written exam and wet lab practical — and is the only SC recertification site that also calibrates and repairs test kits on-site ($98 calibration fee).

Charleston Water System holds quarterly recertification exams ($80 fee) at their St. Philip Street location — a convenient option for Charleston-area testers.

• Palmetto Alliance Institute — Recertification
• Charleston Water System — Tester Recertification

Official Resources

South Carolina Department of Environmental Services (SC DES) — Bureau of Water, Drinking Water Section

Note: Formerly SC DHEC — as of July 1, 2023, environmental programs including backflow prevention moved to SC DES.

Cross Connection Control Program Contact: Steve Fox — foxsc@dhec.sc.gov (verify current email at des.sc.gov) | (803) 898-4426

Recertification Study Guide: Contact SC DES Drinking Water Section

• SC DES — Cross Connection Control & Backflow Prevention
• SC DES — Certified Backflow Testers List (PDF, 03/2026)
• SC DES — Backflow Assembly Test Report Form
• NAWSC — Certified Backflow Testers in South Carolina (searchable)

Who Issues Certification?

South Dakota has no state-level backflow tester certification program. Each local jurisdiction — city, county, or water purveyor — sets its own standards for which certifications it accepts.

The City of Sioux Falls, the largest water utility in South Dakota, is the de facto standard-setter. Sioux Falls requires testers to follow the USC Manual of Cross-Connection Control (10th Edition) field test procedures and maintains its own list of approved backflow prevention assembly testers. Most other SD water purveyors accept ABPA, ASSE, and similar national certifications.

Most South Dakota jurisdictions accept ABPA certification, and many also accept ASSE 5110. Always verify accepted certifications with your specific water purveyor before enrolling. Recertification is every three (3) years.

• ABPA — Region 10 (South Dakota)
• ASSE Schools Directory (via IAPMO)
• City of Sioux Falls — Cross-Connection Control Program

Training Providers

Where to Sign Up For Your Certification Exam

For ASSE 5110 certification through IAPMO BPI / SDAPHCC: the ASSE exam is administered on the last day of the 40-hour course. Contact SDAPHCC at sdphcc.org or (605) 224-8322 to confirm upcoming 2026 course dates and register.

For ABPA certification: contact ABPA Region 10 for exam events in South Dakota or neighboring states. Kruger's can also proctor ABPA exams at their private courses.

Always verify accepted certifications with your specific water purveyor before enrolling. For Sioux Falls utility questions, contact the Sioux Falls Water Division directly.

• SDAPHCC — Backflow Tester Training & Certification
• ABPA — Region 10 Events & Exam Dates
• City of Sioux Falls — Cross-Connection & Backflow

Recertification

Recertification is every three (3) years. Contact your certifying organization (ASSE or ABPA) for recertification course requirements. IAPMO BPI offers ASSE recertification courses nationwide — contact (855) 536-2800 for the nearest options. SDAPHCC may periodically host recertification courses in Sioux Falls depending on demand.

Official Resources

South Dakota has no state-level backflow tester certification — contact your local water purveyor for accepted certifications.

South Dakota Department of Agriculture and Natural Resources (DANR) — Drinking Water Program (regulatory oversight of water quality, not tester certification)

• City of Sioux Falls — Cross-Connection Control Program
• City of Sioux Falls — Cross-Connection Control Manual (PDF)
• SD DANR — Drinking Water Program
• SDAPHCC — Education & Training

Who Issues Certification?

The State of Tennessee certifies backflow prevention assembly testers through the Tennessee Department of Environment and Conservation (TDEC) — Division of Water Resources, Fleming Training Center (FTC) in Murfreesboro. TDEC maintains a list of TDEC-approved training providers and a public Dataviewer of all active and inactive backflow prevention assembly testers in the state.

To become certified, complete a TDEC-approved backflow training course, pass the required written and hands-on examinations, and submit your documentation to TDEC. Tennessee uses its own state test procedures and maintains its own list of approved backflow prevention assemblies (based on the USC FCCCHR approved assembly list).

The Tennessee Backflow Prevention Association (TBPA) — chartered as a chapter of the American Backflow Prevention Association (ABPA) — is a key source of training information and industry resources in the state.

• TDEC — Cross-Connection Control Program (Fleming Training Center)
• TDEC — Public Dataviewer: Active Backflow Testers
• Tennessee Backflow Prevention Association (TBPA)

Training Providers

Where to Sign Up For Your Certification Exam

After completing your TDEC-approved backflow training course, the provider will administer or coordinate the written and hands-on certification exams. Upon passing, submit your documentation to the Fleming Training Center for TDEC certification.

To find a current 2026 Tennessee course, contact the Fleming Training Center at (615) 898-8090 or Fleming.Training@tn.gov, or check the TDEC-approved providers list at the CCC page. The TBPA training information page (tnbackflow.com/tinfo.html) also lists all current approved providers.

To verify an active tester or check your own certification status, use the TDEC Active Backflow Testers Dataviewer.

Note: Kruger's Training Academy has no TDEC-approved Tennessee courses — their own website explicitly states this.

• TDEC — Cross-Connection Control (Approved Providers & Course Info)
• TDEC — Active Backflow Testers Dataviewer
• TBPA — Training Information & Provider List

Recertification

Recertification is every three (3) years. Multiple Tennessee providers offer recertification courses: Memphis Light Gas & Water (recertification and repair classes, call for dates), TBPA (fall repair/recertification classes), and the Fleming Training Center (contact for current recertification schedule).

For renewal, use the TDEC Public Portal to view your current certification status and CE transcript.

• TDEC — Fleming Training Center Public Portal (Cert Status / Renewal)
• TDEC — Active/Inactive Backflow Tester Dataviewer

Official Resources

Tennessee Department of Environment and Conservation (TDEC) — Division of Water Resources

Fleming Training Center — Cross-Connection Control Program

2022 Blanton Dr., Murfreesboro, TN 37129

CCC Program Coordinator: Ben Rodriquez — (615) 898-6508 — benjamin.rodriquez@tn.gov

General FTC Contact / Registration: (615) 898-8090 — Fleming.Training@tn.gov

Hours: Monday–Friday, 8:00 AM–4:30 PM CST

• TDEC — Fleming Training Center: Cross-Connection Control
• TDEC — Active Backflow Testers Dataviewer
• TDEC — Fleming Training Center Home
• TDEC — Public Portal (Certification Status & CE Transcript)
• Tennessee Backflow Prevention Association (TBPA)
• TBPA — Training Information & TDEC-Approved Provider List

Who Issues Certification?

The State of Texas certifies backflow prevention assembly testers (BPATs) through the Texas Commission on Environmental Quality (TCEQ) under Texas Water Code Chapter 37 and 30 TAC Chapter 30. A TCEQ BPAT license is required to test or repair backflow prevention assemblies on any domestic, commercial, industrial, or irrigation water system in Texas.

Note on fire lines: BPAT licensees may test and repair assemblies on fire lines only if they are permanently employed by a TCEQ-approved Fireline Contractor.

Requirements for initial BPAT licensure: (1) High school diploma or GED; (2) Two years of qualifying work experience (operating a public water system, installing/repairing plumbing, installing irrigation systems, licensed plumbing work, fire suppression systems, wastewater treatment, or other TCEQ-approved experience); (3) Complete a TCEQ-approved 40-hour BPAT training course including the practical skills exam; (4) Submit an online application (OLEA) and $111 fee to TCEQ; (5) Once approved, pass the written exam at a TCEQ-approved computer-based testing (CBT) center.

Experience substitution: Up to one year of the two-year experience requirement may be substituted with 32 semester hours of college credit, or with 20 hours of approved training in addition to the required 40-hour course.

Testing procedures: USC Manual of Cross-Connection Control, 10th Edition. TCEQ uses the current USC FCCCHR list of approved backflow prevention assemblies.

• TCEQ — BPAT License Requirements
• TCEQ — BPAT Approved Training Providers (Full List)
• TCEQ — Online License Application (OLEA)
• TCEQ — Computer-Based Testing Centers
• TCEQ — License Lookup
• TCEQ — Cross-Connection Control

Training Providers

TCEQ maintains a full list of approved BPAT training providers at tceq.texas.gov/licensing/training/AllTrainingProviders. The providers below are among the most active open-enrollment options. All courses are based on the USC Manual of Cross-Connection Control, 10th Edition. Attendance is electronically reported to TCEQ by approved providers.

• TCEQ — All Approved BPAT Training Providers

Where to Sign Up For Your Certification Exam

Texas has a two-part exam process for initial BPAT licensure:

Part 1 — Practical Skills Exam: Administered by your TCEQ-approved training provider at the conclusion of the 40-hour course (Day 5). You must pass this before TCEQ will process your written exam approval.

Part 2 — Written Exam: After your application is approved by TCEQ, you will be notified to schedule the computer-based written exam at a local TCEQ-approved CBT testing center. Submit your application through the TCEQ Online Licensing Application (OLEA) with the $111 fee.

Attendance at approved courses is electronically reported to TCEQ by providers like Winn's CE — no additional paperwork needed from you for CE reporting.

License and CE hour lookup: search the TCEQ License Information system at www2.tceq.texas.gov/lic_dpa/index.cfm.

• TCEQ — Online License Application (OLEA)
• TCEQ — Computer-Based Testing Centers (CBT)
• TCEQ — License Information & CE Hour Search
• TCEQ — All Approved BPAT Training Providers

Recertification

BPAT licenses are valid for three (3) years. For renewal, you must complete 24 hours of CE prior to license expiration — of which 8 hours must be practical skills (hands-on) training. CE hours may be earned at any time during the validity of the license.

Winn's CE renewal bundle ($650) covers all 24 required CE hours (8-hr Backflow Fundamentals + 8-hr Troubleshooting & Repair + 8-hr Practical Skills Refresher). The first 16 non-hands-on hours are also available via online live webinar. The 8-hr Practical Skills Refresher (TCEQ Course 1201, $300) is available standalone in Irving and Houston/Missouri City.

C2 Services ($325) and SAU Tech AETA also offer Texas BPAT renewal courses. Viking II offers a Texas Renewal bundle ($650) including 16-hr Advanced Repair + 8-hr Practical Refresher.

Submit renewal application + criminal history attestation + $111 fee to TCEQ online.

• TCEQ — BPAT Renewal Requirements
• Winn's CE — BPAT Renewal Courses & Bundle
• TCEQ — Approved CE Training Providers

Official Resources

Texas Commission on Environmental Quality (TCEQ) — Occupational Licensing

Email: licenses@tceq.texas.gov

TCEQ main office: 12100 Park 35 Circle, Austin, TX 78753 | P.O. Box 13087, Austin, TX 78711-3087

• TCEQ — BPAT License Requirements & Overview
• TCEQ — All Approved BPAT Training Providers
• TCEQ — Online License Application (OLEA)
• TCEQ — License Information Search (includes CE hours)
• TCEQ — Cross-Connection Control Program
• TCEQ — Military, Veterans & Spouses (expedited licensing)

Who Issues Certification?

The State of Utah certifies backflow assembly testers through the Utah Department of Environmental Quality (DEQ) — Division of Drinking Water (DDW), under R309-305-8. You must hold a Utah Backflow Assembly Tester certification to test backflow assemblies in Utah.

Becoming certified is a three-step process: (1) Complete a Utah DEQ-listed training course; (2) Register and pass the ABPA (American Backflow Prevention Association) certification exam, which is administered separately by ABPA — not by the training course provider; (3) Submit an application and fee to Utah DEQ along with your ABPA card or certificate.

Important: Completing the training course alone does not certify you in Utah. You must also pass the separate ABPA exam. The ABPA exam is based on USC Manual of Cross-Connection Control, 10th Edition test procedures.

Repair and installation of backflow prevention assemblies may require additional licensure from the Utah Department of Professional Licensing (DOPL) — a testing-only certification does not cover repair or installation. Recertification is every three (3) years; a recertification training course is not required (only the ABPA recertification exam and a new DEQ application).

• Utah DEQ — Backflow Assembly Tester (Process & Application)
• Utah DEQ — Approved Training Courses (PDF)
• Utah DEQ — Backflow Tester Application (Qualtrics)
• Utah DEQ — Commercially Available Backflow Technicians (Search)
• Utah DEQ — All Certified Backflow Technicians
• ABPA — Region 10 Events (Utah/Mountain West Exams)
• Utah Admin Code R309-305-8 — Backflow Tester Certification

Training Providers

Utah DEQ maintains an approved training providers list (PDF, updated 2026) at the link above. Completing a DEQ-listed course is Step 1 — but remember, the separate ABPA exam (Step 2) is also required before submitting your DEQ application. The ABPA exam can be taken at the end of most courses — confirm with your provider.

Where to Sign Up For Your Certification Exam

The ABPA certification exam is a required step for Utah certification, separate from the training course. The exam consists of a 100-question multiple-choice written exam and a practical exam. Most training providers schedule an ABPA exam at the end of their course — confirm this with your provider and register with ABPA in advance (late registration incurs a $100 fee if within 14 days of the exam).

ABPA exam events in Utah are listed on the ABPA Region 10 calendar. A West Valley City, UT exam was scheduled for April 10, 2026. Check the ABPA events calendar for upcoming Utah exam dates.

After passing the ABPA exam, submit your DEQ application online (Qualtrics form), pay the DEQ fee via the Payment Portal, and send your ABPA card/certificate to ddwbackflow@utah.gov or mail to PO Box 144830, Salt Lake City, UT 84114-4830.

You can verify active Utah backflow technicians using the DEQ WaterLink public search databases.

• ABPA — Region 10 Events & Exam Calendar
• Utah DEQ — Backflow Tester Application (Qualtrics)
• Utah DEQ — Payment Portal (Application Fee)
• Utah DEQ — Certified Backflow Technicians Lookup

Recertification

Recertification is every three (3) years. A recertification training course is not required — you may go directly to the ABPA recertification exam. However, a recertification course is offered by Backflow Training Services (and encouraged by DEQ) for those who want a refresher before the exam.

To recertify: (1) Register and pass the ABPA recertification exam; (2) Submit the DEQ recertification application via the Qualtrics form with your new ABPA card/certificate and pay the renewal fee via the DEQ Payment Portal.

Backflow Training Services 2026 recertification courses: Oct 7–9 and Nov 4–6 (West Valley City). Each includes the ABPA recertification exam at course end. ABPA exam fee: $330 ($300 for ABPA members).

• Backflow Training Services — Schedule (Recertification)
• ABPA — Region 10 Recertification Exam Events
• Utah DEQ — Application & Recertification (Qualtrics)

Official Resources

Utah Department of Environmental Quality (DEQ) — Division of Drinking Water (DDW)

Cross-Connection Control Program

Application Email: ddwbackflow@utah.gov

Mail: P.O. Box 144830, Salt Lake City, UT 84114-4830

Office: 195 North 1950 West, Salt Lake City, UT 84116 | Phone: (801) 536-4000

• Utah DEQ — Backflow Assembly Tester (Certification Process)
• Utah DEQ — Cross-Connection Control & Backflow Prevention (Program Home)
• Utah DEQ — Approved Training Courses List (PDF, 2026)
• Utah DEQ — Backflow Tester Application (Qualtrics Form)
• Utah DEQ — Payment Portal
• Utah Admin Code R309-305-8 — Backflow Tester Certification Rule
• Utah DEQ — Commercially Available Backflow Technicians (For Property Owners)
• Utah DEQ — All Certified Backflow Technicians (Status Verification)
• Rural Water Association of Utah (RWAU) — Cross Connection Resources

Who Issues Certification?

Vermont has no state-level backflow tester certification program. Each local water purveyor sets its own certification requirements. In practice, the Vermont Plumbing Rules (2025 edition) require that backflow assembly testers hold a valid certification card issued by an ASSE- or AWWA-approved organization.

Vermont Plumbing Code (2021 IPC with Vermont amendments) requires that testing procedures follow ASSE standards (ASSE 5013, 5015, 5020, 5047, 5048, 5052, 5056) — not the USC Manual of Cross-Connection Control 10th Edition used in many other states. Local jurisdictions such as Burlington and Williston publish their own backflow prevention requirements; always verify accepted certifications with your specific water purveyor.

Vermont has relatively few private water purveyors — most backflow certification is managed at the municipal/town government level. NEWWA (New England Water Works Association) is the most widely recognized certifying body across New England and is accepted throughout Vermont. ASSE certification is also broadly accepted. Recertification is every three (3) years.

• Vermont Division of Fire Safety — Plumbing Code Highlights
• Vermont Environmental Health — Drinking Water Program
• Vermont ANR — Drinking Water and Groundwater Protection
• NEWWA — Backflow/Cross Connection Program
• ASSE Schools Directory (via IAPMO)

Training Providers

Where to Sign Up For Your Certification Exam

The certification exam (written and practical) is administered by your training provider at the end of the course. For NEWWA certification, exams are on the last day of the 4-day course. After passing, your provider issues your certification card, which is accepted by Vermont water purveyors.

Always verify the accepted certification with your specific local water purveyor before enrolling, as local municipalities in Vermont may have their own specific requirements.

• NEWWA — Upcoming Courses & Events
• NEWWA — Backflow/CC Certification Information

Recertification

Recertification is every three (3) years. NEWWA offers monthly recertification courses (6-hour review + performance exam) at their Holliston, MA headquarters and satellite locations throughout New England. For ASSE recertification, contact IAPMO BPI. UA Local 693 may also offer recertification for members — contact (802) 864-4042.

• NEWWA — Recertification FAQ
• NEWWA — Upcoming Recertification Courses

Official Resources

Vermont has no single state backflow tester certification body. Relevant regulatory context:

Vermont Division of Fire Safety — administers Vermont Plumbing Rules (ASSE/AWWA certification required for backflow testers)

Vermont Dept of Health — Environmental Health Division — Drinking Water Program: 108 Cherry Street, Burlington, VT 05402 | (802) 863-7220

Vermont Agency of Natural Resources (ANR) — Drinking Water and Groundwater Protection Division

• Vermont Division of Fire Safety — Plumbing Code & Highlights
• Vermont Plumbing Rules (2025 edition, PDF)
• Vermont Dept of Health — Drinking Water Program
• Vermont ANR — Drinking Water and Groundwater Protection
• NEWWA — Certification Rules (includes Vermont as a member state)

Important Update

As of January 1, 2023, all persons testing and repairing backflow prevention assemblies in Virginia must hold a Commonwealth of Virginia Backflow Prevention Device Worker certification, issued by the Department of Professional and Occupational Regulation (DPOR) — Board for Contractors, Tradesmen Program. This is a mandatory state certification, not optional.

• Virginia Department of Health — Cross Connection Control Amendments (Slides)

Who Issues Certification?

The State of Virginia certifies Backflow Prevention Device Workers through the Department of Professional and Occupational Regulation (DPOR) — Board for Contractors, Tradesmen Program. Certification is mandatory for any person testing or repairing backflow prevention assemblies in Virginia.

To become certified, you must: (1) Complete an approved backflow education course from a DPOR-approved school; (2) Submit the Backflow Prevention Device Worker application (A501-2717CERT) to DPOR; (3) Receive pre-approval notification from DPOR; (4) Contact PSI at (855) 340-3910 to schedule and pass the written certification exam ($100 exam fee paid to PSI).

Important renewal note: Backflow Prevention Device Workers are explicitly exempt from continuing education requirements — no CE courses are needed to renew a Virginia backflow certification. Simply return your renewal card with payment every three (3) years.

Universal License Recognition (ULR): If you already hold a backflow certification from another state, you may apply for Virginia ULR using the Backflow | Elevator Mechanic | Certified Acc. Mechanic ULR Application. Contact DPOR Licensing at (804) 367-8511 for details.

• DPOR — Backflow Prevention Device Worker Application (A501-2717CERT, PDF)
• DPOR — Tradesmen Program (Exams, Renewal, Approved Schools)
• DPOR — Approved Backflow Schools (Full List, PDF — updated 10/28/2025)
• DPOR — License Lookup
• DPOR — ULR Application (Backflow/Elevator)
• DPOR — Tradesmen Regulations (18 VAC 50-30)

Training Providers

Virginia DPOR maintains an official approved schools list (PDF, updated 10/28/2025) with 30 approved providers across Virginia and neighboring states. All providers below are on the current list. Completing a DPOR-approved course is required before submitting your application for the certification exam. See the full official list for all 30 providers.

• DPOR — Full Approved Backflow Schools List (PDF)

Where to Sign Up For Your Certification Exam

Virginia's backflow certification requires a two-step process: (1) Complete an approved education course; (2) Pass the written PSI exam.

Pre-approval from DPOR is required before you can sit for the exam. Submit your application (A501-2717CERT, updated 08/01/2025) with the required fee to DPOR at 9960 Mayland Drive, Richmond, VA 23233. Once you receive approval notification from DPOR, contact PSI at (855) 340-3910 to schedule the written exam.

PSI exam fee: $100. Exams are offered daily (Mon–Fri) at: Charlottesville VA, Richmond VA, Roanoke VA, Vienna VA (Northern Virginia), Virginia Beach VA, Johnson City TN, and Salisbury MD.

Questions about application status: contact DPOR Licensing at (804) 367-8511 or tradesmen@dpor.virginia.gov. For questions about approved education providers: (804) 367-2224 (Education Section).

• DPOR — Backflow Device Worker Application (A501-2717CERT)
• PSI — Schedule Exam (Virginia Contractors Board)
• PSI — Candidate Information Bulletin (PDF)
• DPOR — License Lookup (verify licensed testers)

Recertification

Virginia Backflow Prevention Device Worker certifications are valid for three (3) years. Renewal is straightforward: return the renewal card received in the mail with your payment. No continuing education is required — Virginia explicitly exempts backflow device workers from the CE requirements that apply to other tradesman licenses.

You CANNOT continue to test or repair backflow assemblies after your certification expires. There is a 30-day grace period after the expiration date to renew with payment (no penalty). If renewal is not completed within 30 days, an additional reinstatement fee is required. If not completed within one year, you must reapply as a new applicant.

Out-of-state licensed backflow testers: Apply for Universal License Recognition (ULR) using the Backflow | Elevator Mechanic | Certified Acc. Mechanic ULR Application from DPOR.

• DPOR — Online Renewal
• DPOR — ULR Application (for out-of-state licensed testers)

Official Resources

Virginia Department of Professional and Occupational Regulation (DPOR) — Board for Contractors, Tradesmen Program

Licensing: (804) 367-8511 | Education: (804) 367-2224 | Fax: (866) 430-1033

Email: tradesmen@dpor.virginia.gov

Mail: Board for Contractors, DPOR, 9960 Mayland Drive, Richmond, VA 23233

• DPOR — Tradesmen Program (Backflow Device Workers)
• DPOR — Approved Backflow Schools List (PDF, updated 10/28/2025)
• DPOR — Backflow Device Worker Application (A501-2717CERT)
• DPOR — License Lookup
• DPOR — Tradesmen Regulations (18 VAC 50-30)
• Virginia DH — Cross Connection Control Amendments (Training Slides PDF)
• DPOR — ULR Application (Backflow/Elevator, for out-of-state testers)

Who Issues Certification?

The State of Washington certifies Backflow Assembly Testers (BATs) through Washington Certification Services (WCS) at Green River College, which administers the BAT certification program under authority from the Washington State Department of Health (DOH) — Office of Drinking Water. WCS manages the exam, certification, annual renewal, and maintains the public list of certified BATs.

Washington's BAT certification process is unique in several ways: (1) A training course is not required before taking the certification exam — you may apply directly to take the exam with only a high school diploma or GED, with no work experience requirement. Most candidates still take a prep course to prepare for the hands-on practical exam. (2) Certification renewal is annual (fee paid each year), not every three years. (3) Professional Growth (PG) — a hands-on practical recertification exam — is required every three (3) years.

The exam uses USC Manual of Cross-Connection Control, 10th Edition test procedures. Testing procedures: USC 10th Edition. Important 2026 changes: the SVBA has been removed from the PG exam; PG exam time shortened to 45 minutes; and completing the leaking #2 check valve diagnostic during RPBA testing is now a required pass/fail step for ALL practical exams.

• Washington Certification Services (WCS) — BAT Certification Home
• WCS — Apply for BAT Certification Exam
• WCS — BAT Certification Verification & Public List
• WCS — Important 2026 Cert Updates
• WA DOH — Cross-Connection Control & Backflow Prevention
• WAC 246-292-034 — BAT Duties

Training Providers

Washington Certification Services (WCS) administers the actual BAT exams — training providers are separate organizations that offer exam prep courses. WCS and WETRC are frequently confused; they are distinct organizations. Registering for a WETRC course does NOT register you for the WCS exam — you must register separately with WCS.

A prep course is not required to sit for the WCS exam. However, the hands-on practical exam is demanding and most candidates attend a prep course to practice on live assemblies.

Where to Sign Up For Your Certification Exam

Exams are administered by Washington Certification Services (WCS) — NOT by training providers. Training providers like WETRC and ERWOW offer prep courses only.

The certification exam has two parts: (1) Hands-on/Practical Exam: administered at WCS test facilities; tests all backflow assembly types (SVB, PVB, DCV, RP) using USC 10th Edition procedures. As of January 1, 2026, completing the leaking #2 check valve diagnostic during RPBA testing is a required pass/fail step. Apply to WCS and pay the exam fee ($225) before scheduling the practical. (2) Computer-Based Written Exam: scheduled after passing the practical exam.

No training course is required to apply for the exam. You need only a high school diploma or GED — no work experience requirement.

Contact WCS at (253) 288-3357 to register for the BAT certification exam or check wcs.greenriver.edu/bat/ for current exam dates and the online application.

• WCS — Apply for BAT Certification Exam
• WCS — About the BAT Certification Exam
• WCS — 2026 Certification Updates (Important Changes)
• WCS — Certified BAT Public List

Recertification

Washington BAT renewal works differently from most states: certifications must be renewed annually (by paying an annual fee to WCS) AND a Professional Growth (PG) hands-on practical exam must be passed every three (3) years.

2026 Annual Renewal Fees: $42 (if paid by 11/30/2025) | $68 (if paid 12/1/2025 onward) | $125 (late fee, includes $57 penalty). Online renewal opens in November each year. WCS no longer accepts checks or money orders.

Professional Growth (PG) exam changes effective 1/1/2026: The SVBA has been removed from the PG practical exam (was previously required). PG exam time shortened from 60 to 45 minutes. Only SVB, PVB, DCV, and RP assemblies are now tested. The leaking #2 check valve diagnostic for RPBA is now required for all practical exams.

WETRC (Auburn and Spokane) offers a 3-day BAT Refresher course to prepare for the PG exam. ERWOW (Shelton) offers a 2-day BAT Refresher for certified BATs. Both earn CEUs that WCS and DOH accept.

• WCS — BAT Certification Renewal
• WETRC — BAT Refresher Course (3-day, PG prep)
• ERWOW — BAT Refresher (2-day)

Official Resources

Washington Certification Services (WCS) — Green River College

Phone: (253) 288-3357 | wcs.greenriver.edu

Washington State Department of Health — Office of Drinking Water

Cross-Connection Control Program | doh.wa.gov

• Washington Certification Services (WCS) — BAT Program
• WCS — BAT Certification Status (Public List / Verify a Tester)
• WCS — BAT Renewal
• WA DOH — Cross-Connection Control & Backflow Prevention
• WAC 246-292-034 — Duties of a Backflow Assembly Tester

Who Issues Certification?

The State of West Virginia certifies Backflow Prevention Assembly Inspector/Testers through the Bureau of Public Health (BPH) — Office of Environmental Health Services (OEHS), Environmental Engineering Division (EED), Certification & Training Program, under WV Code of State Rules 64 CSR 25.

ASSE (American Society of Sanitary Engineering) is the dominant certifying body accepted in West Virginia. After completing an ASSE-approved training course and passing the ASSE written and practical exams, submit your documentation to the WV C&T Program for state certification.

Continuing Education Hours (CEHs) are required for recertification under 64 CSR 25. Contact the C&T Program at (304) 352-5024 for current CEH requirements and approved courses. Recertification is every three (3) years.

WV uses ASSE test procedures — not the USC Manual of Cross-Connection Control 10th Edition used in most other states.

• WV OEHS — Cross-Connection and Backflow Prevention Program
• WV OEHS — Certification & Training Program
• WV OEHS — Search Certified Backflow Testers (New Portal)
• WV Code 64 CSR 25 — Backflow Prevention Assembly Tester Certification (PDF)
• ASSE Schools Directory (via IAPMO)

Training Providers

Where to Sign Up For Your Certification Exam

The ASSE 5110 written and practical certification exams are administered by your training provider at the conclusion of the course. After passing, submit your documentation to the WV Certification & Training Program to receive your state certification.

Contact the WV C&T Program at (304) 352-5024, Nathan.A.Sites@wv.gov, or Patrick.L.Marchio@wv.gov for certification application forms and submission instructions. The C&T Forms page (oehs.wvdhhr.org/eed/certification-training/forms/) has current application forms.

To verify a certified backflow tester's status, use the new WV OEHS backflow tester search portal at oehsportal.wvdhhr.org/backflow/.

• WV OEHS — Certification & Training Forms
• WV OEHS — Search Certified Backflow Testers
• WV OEHS — Certification Requirements

Recertification

Recertification is every three (3) years. Continuing Education Hours (CEHs) are required under 64 CSR 25. Contact the WV Certification & Training Program at (304) 352-5024 for current CEH requirements and a list of approved CEH courses.

Contact your ASSE-approved training provider (Local 565, Local 152, Local 521, or IAPMO BPI) for recertification courses. The WV Rural Water Association (wvrwa.org) and WV AWWA (wvawwa.org) may also offer approved CEH training.

• WV OEHS — Continuing Education Information

Official Resources

West Virginia Bureau of Public Health (BPH) — Office of Environmental Health Services (OEHS)

Environmental Engineering Division — Certification & Training Program (64 CSR 25)

Phone: (304) 352-5024

Contacts: Nathan.A.Sites@wv.gov | Patrick.L.Marchio@wv.gov

• WV OEHS — Cross-Connection and Backflow Prevention
• WV OEHS — Certified Backflow Tester Search (New Portal)
• WV OEHS — Certification & Training Program
• WV OEHS — Continuing Education (CEH Requirements)
• WV OEHS — Cross-Connection and Backflow Prevention Manual (PDF)
• WV Code 64 CSR 25 — Backflow Prevention Assembly Tester Certification (PDF)
• WV Rural Water Association — Training & CEH Resources
• WV Section — American Water Works Association

Who Issues Certification?

The State of Wisconsin requires all persons conducting performance tests of cross connection control assemblies to hold a Registration as a Cross Connection Control Assembly Tester issued by the Wisconsin Department of Safety and Professional Services (DSPS), under Wis. Admin. Code § SPS 305.99 and Wis. Stat. § 145.06(3m).

To obtain registration, you must complete at least one of the following: (a) A minimum of 40 hours in a DSPS-approved course covering cross connection control theory, assembly operation, testing, maintenance, and national standards (SPS 305.99(3)(am)); OR (b) An ASSE-approved course meeting ASSE Standard 5150 (SPS 305.99(3)(bm)). After completing an approved course, apply for your DSPS registration through the LicensE portal at license.wi.gov using Form 3125.

All initial, reinstatement, and renewal applications for the Cross Connection Control Assembly Tester credential are now processed through DSPS's LicensE online portal. Testing procedures: USC Manual of Cross-Connection Control, 10th Edition. Recertification is every three (3) years, with 6 hours of continuing education required.

• DSPS — Cross Connection Control Assembly Tester (Approved Providers)
• DSPS — LicensE Portal (Applications & Renewals)
• DSPS — Form 3125: Cross Connection Control Assembly Tester Registration Application
• Wis. Admin. Code § SPS 305.99 — Cross Connection Control Tester Registration
• DSPS — Trades Renewal Dates and Fees

Training Providers

All providers below appear on the official DSPS approved course provider table (fetched from dsps.wi.gov, May 2026). All are approved for the DSPS Cross Connection Control Assembly Tester registration.

Where to Sign Up For Your Certification Exam

After completing a DSPS-approved course (or an ASSE 5150 course), apply for your Wisconsin Cross Connection Control Assembly Tester registration through the DSPS LicensE portal at license.wi.gov. All applications, renewals, and reinstatements are now processed through LicensE. Use Form 3125 as your reference for the application requirements.

Contact DSPS at (608) 266-2112 with questions about the registration process. For renewal information, check the LicensE portal or the Trades Renewal Dates and Fees document at dsps.wi.gov.

• DSPS LicensE Portal — Apply / Renew Registration
• DSPS Form 3125 — Application Information
• DSPS — Trades LicensE Information (PDF)
• DSPS — Trades Renewal Dates and Fees

Recertification

Recertification is every three (3) years. Wisconsin requires 6 hours of continuing education for renewal. The 6 CEH hours must be completed before the registration expiration date.

Contact your training provider for recertification courses. UW-Madison Engineering Professional Development, HydroCorp/Wisconsin Rural Water Association, IAPMO BPI (Appleton), and Total Backflow Resources all offer continuing education options. Renewal is through the DSPS LicensE portal at license.wi.gov.

• DSPS LicensE Portal — Renew Registration
• DSPS — Approved CE Providers (see DSPS Professions page)

Official Resources

Wisconsin Department of Safety and Professional Services (DSPS) — Trades Division

4822 Madison Yards Way, Madison, WI

Phone: (608) 266-2112

• DSPS — Cross Connection Control Assembly Tester (Approved Providers & Info)
• DSPS — LicensE Portal (All Applications & Renewals)
• DSPS — Form 3125: Registration Application
• Wis. Admin. Code § SPS 305.99 — Cross Connection Control Tester Rules
• DSPS — Trades Credential Renewal (LicensE Credential Search)

Who Issues Certification?

The Wyoming Department of Environmental Quality (DEQ) — Water Quality Division — regulates backflow tester certification through Wyoming Administrative Code Chapter 12 (Water Distribution Systems), Section 12-14. The regulation requires that all persons testing backflow prevention assemblies must hold a current certification issued by ASSE (American Society of Sanitary Engineering), ABPA (American Backflow Prevention Association), or an equivalent organization approved by the Authority Having Jurisdiction (AHJ).

Most Wyoming water utilities and jurisdictions reference Chapter 12 directly. ASSE (ASSE procedures) and ABPA (USC Manual of Cross-Connection Control, 10th Edition) are the two primary accepted certification paths. Always verify accepted certifications with your specific water purveyor or local AHJ before enrolling, as local jurisdictions may have their own preferences.

Recertification is every three (3) years.

• Wyoming DEQ — Water & Wastewater Program
• Wyoming Admin Code Chapter 12 — Water Distribution Systems
• ABPA — Region 5 (Wyoming)
• ASSE Schools Directory (via IAPMO)

Training Providers

Where to Sign Up For Your Certification Exam

For ASSE certification, the written and practical exams are administered by your training provider at the conclusion of the course. Contact Casper College, LCCC, or JATC 192/193 for upcoming 2026 course dates.

For ABPA certification, register for an exam through the ABPA Region 5 calendar. Contact your training provider for ABPA exam coordination.

Always verify accepted certifications with your local water utility or AHJ before enrolling. Wyoming's Chapter 12 accepts ASSE, ABPA, or equivalent — but individual jurisdictions may have preferences. Contact Wyoming DEQ Water Quality Division for program-level questions.

• ABPA — Region 5 Events (Wyoming Area)
• Wyoming DEQ — Water Quality / Operator Certification

Recertification

Recertification is every three (3) years. Contact your certifying organization (ASSE or ABPA) for recertification course requirements and scheduling. Casper College, LCCC, and JATC 192/193 may also offer recertification courses — contact each directly for 2026 recertification options.

Official Resources

Wyoming Department of Environmental Quality (DEQ) — Water Quality Division

122 West 25th Street, Herschler Building, Suite 5EB, Cheyenne, WY 82002

Wyoming Association of Rural Water Systems (WARWS): (307) 436-8636

• Wyoming DEQ — Water & Wastewater Program
• Wyoming DEQ — Operator Certification
• Wyoming Admin Code Chapter 12 — Distribution Systems (Backflow Requirements)
• ABPA — Region 5 (Wyoming)