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Backflow Prevention Journal Launch
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Moving Forward In The Cross-Connection Industry
Industry Position Paper: Tester Education Training and Certification
Industry Position Paper: Backflow Prevention Methods and Frequency of Testing
The Plumbing, Mechanical, Water Industries – Want You
Backflow Prevention Institute
IAPMO Backflow Prevention Institute

The motto of the Backflow Prevention Institute® is safe water through plumbing code compliance. Proper training and certification are the keys to achieving that goal. IAPMO's Backflow Prevention Institute is the industry's resource for backflow prevention and cross-connection control. It provides professional training exceeding the industry standards established by the American Society of Sanitary Engineering.

Water Institute researchers from the University of North Carolina Gillings School of Global Public Health are partnering with IAPMO in an "Innovation Lab" to find ways to reduce recontamination in utility-owned water system pipes, buildings and homes.

Training and Certification

IAPMO-BPI provides training toward professional certification in backflow prevention. Our courses prepare students for each credential identified in the ASSE/IAPMO/ANSI Series 5000 professional qualification standards:

The Institute's certification programs include:

  • Backflow Prevention Assembly Tester
  • Backflow Prevention Assembly Repairer
  • Cross-Connection Control Surveyor
  • Fire Sprinkler System Cross-Connection Control Tester
  • Backflow Prevention Program Specialist/Administrator
    For a description of our programs, download the Backflow Prevention Institute Brochure
  • The Institute also offers the Backflow Prevention Reference Manual and Tech-Wheel as essential resources to aid in 
    protecting the potable water supply.

    Each course includes an American Society of Sanitary Engineering certification exam at the conclusion of the training. These ASSE certifications are recognized by model plumbing codes in the United States, including the Uniform Plumbing Code. IAPMO-BPI is dedicated to water system safety through plumbing-code compliance and supports the ASSE certification program. 

    *Certification and pre-requisite Information:
    Backflow Prevention Assembly Tester Certification Pre-requisite: Five years of industry-related experience
    Backflow Prevention Assembly Repairer and Cross-Connection Control Surveyor Certifications: Hold current Tester Certification
    The IAPMO training program provides the student with the necessary knowledge and skills to become an ASSE certified backflow preventer tester, repairer, or cross-connection control surveyor.
    When completing the application for the tester courses, IAPMO must receive a photocopy of any current certification for re-certification purposes or provide a minimum of 5 years experience in the industry prior to becoming certified as a backflow preventer tester.
    Applications must be received by IAPMO two (2) weeks prior to a course start date. This insures that training and certification materials will be available from ASSE for that course. 

    The certification examination consists of a written examination and a practical examination. The exam for an initial tester certification consists of 100 questions. The initial certification candidate must successfully demonstrate the field test procedure for a reduced pressure principle assembly, a double check valve assembly, a pressure vacuum breaker assembly, and a spill resistant vacuum breaker assembly without notes or assistance.

    The re-certification examination consists of a written examination and a practical examination. The written exam for recertification consists of 25 questions. The recertification candidate must successfully demonstrate the field test procedure for a reduced pressure principle assembly, a double check valve assembly, a spill resistant vacuum breaker assembly, and a pressure vacuum breaker assembly, without notes or assistance.
    All candidates will know of successful field test exam results at the time of the test. All written examinations are submitted to ASSE for grading, and certification credentials are provided within two to three weeks after the exam. These certification credentials will be mailed from IAPMO. If a certification candidate is not successful, a written notice will be provided from ASSE.
    Other class locations available:
    IAPMO can provide training at your location. If your company or organization has a group that needs any of our Backflow Training and or certifications, please contact IAPMO and we can schedule your own backflow prevention class.

    Backflow Prevention Institute to Expand Certification Class Offerings
    In early 2016, the International Association of Plumbing and Mechanical Officials’ Backflow Prevention Institute will begin offering an expanded program of certification classes in backflow prevention installation, assembly repair, and cross-connection surveying. Several new four- and eight hour training classes for building, plumbing, and mechanical inspectors will also be offered, along with online seminars.

    These programs, which are being developed, are in addition to the ASSE cross-connection training IAPMO BPI has been conducting for a number of years. BPI is bridging the gap between the different stakeholders who make up the cross-connection industry by offering certification and training to individuals in the inspection, irrigation, water, and wastewater industries. As an industry leader in cross-connection training, BPI is continuously expanding its programs to new areas across the United States.

    IAPMO BPI is looking for volunteers for its new certification committees who will work to develop strong and balanced training requirements, guidelines, and both written and practical examinations for these new certifications. For more information, please contact IAPMO BPI Vice President of Operations Sean Cleary at (909) 996-5336 or by e-mail at


    For questions on Seminar Registration contact:
    Toll free: 1(855)536-2800

    Special Accommodations

    IAPMO takes its social responsibility seriously and is strongly committed to providing reasonable accommodations to test candidates, code development delegates, and seminar participants, who have documented disabilities recognized under the Americans with Disabilities Act (ADA). All requests for accommodations will be evaluated in accordance with IAPMO’s documented administrative procedure and criteria.

    To obtain the ADA Guidelines and Application contact IAPMO at 1(855)536-2800.

    Cancellation and Refund Policy

    There will be no penalties for cancellations received 14 or more days prior to the scheduled event date. There will be NO REFUNDS for cancellations received after 14 days prior to the scheduled event.

    IAPMO reserves the right to cancel any event due to low enrollment. If that occurs, all prepaid registrations will be refunded in full. IAPMO is not responsible for losses resulting from the cancellation of an event.