Grow your professional capabilities and protect our nation’s potable water supply with ASSE Cross-Connection Control Certification.

ASSE certification in backflow prevention assembly testing, repairing, and surveying adds nationally recognized credentials to your resume, enhances your skills, and increases the number of tasks you can perform – ultimately raising your employability.

Currently, there are more than 20,000 ASSE Certified backflow professionals spanning all 50 states and parts of Canada. Join these qualified individuals and expand your skill set by becoming certified at one of the 100-plus ASSE approved schools around the country.

ASSE 5000

ASSE Cross-Connection Control Certification meets the challenge of a sound and defensible credential program based on voluntary, industry consensus standards.

If your jurisdiction accepts or requires ASSE Cross-Connection Control Certification, it’s for a good reason; training, testing, and certification is based on the ASSE/IAPMO/ANSI Series 5000 standard, which provides stringent professional qualifications for the backflow prevention industry. Simply put: only those who are qualified to work on backflow prevention assemblies are allowed to perform cross-connection control tasks.

Jurisdictions and employers feel confidence knowing that ASSE certified professionals have completed a qualified course of instruction, and passed written and practical exams covering the knowledge and skills needed to protect our potable water supply from backflow or cross-connection contamination.


  • ASSE 5110
    Backflow Prevention Assembly Tester
  • ASSE 5120
    Cross-Connection Control Surveyor /Specialist
  • ASSE 5130
    Backflow Prevention Assembly Repairer
  • ASSE 5140
    Fire Protection Cross-Connection Control Tester
  • ASSE 5150
    Backflow Prevention Program Administrator

About ASSE 5000 Certifications

  • Documented practical experience required to qualify for certification
  • Required comprehensive 40-hour training course covering industry-decided knowledge and skills
  • Required comprehensive written exam, and closed book practical exam demonstrating proper field test procedures (Backflow Prevention Assembly Tester Certification)
  • Certification is valid for three years
  • Refresher course, written exam, and practical exam required for re-certification

About the Program

  • Nationally recognized third-party certification, independent of all training course providers and instructors
  • Maintains all certification records, and notifies schools and individuals when it’s time to re-certify
  • Qualifications and approval of instructors/proctors overseen by ASSE
  • Quality and approval of training providers overseen by ASSE
  • Certified individuals and approved training providers listed on ASSE website


If you are interested in becoming an ASSE-accredited instructor and/or proctor, interested in having your school accredited, or interested in learning more about ASSE 5000 Certifications, please contact the ASSE International Professional Certifications Manager at