What is ASSE 5110 certification?

ASSE 5110 is the nationally recognized professional qualification standard for Backflow Prevention Assembly Testers established by ASSE International. It requires a minimum 40-hour approved training course, passing a 100-question written exam with at least 70%, and passing a hands-on practical exam on RP, DC, PVB, and SVB assemblies.

How often do backflow testers have to recertify?

Most states and national certifying organizations (ASSE and ABPA) require recertification every 3 years. This typically involves submitting proof of 6-12 hours of continuing education (CEUs) or completing a hands-on practical recertification examination.

How often must backflow test kit gauges be calibrated?

Per ASSE 5110 and AWWA standards, differential pressure test kit gauges must be calibrated and certified annually (every 12 months) by an accredited NIST-traceable calibration laboratory to an accuracy of ±0.2 psid.

Verified 50-State Licensing Database

Backflow Tester Certification
Requirements by State

Find official licensing authorities, approved 40-hour training courses, recognized certifications (ASSE 5110, ABPA, AWWA), exam formats, fees, and recertification cycles for all 50 US States.

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ASSE 5110 / USC 10TH EDITION PRACTICAL TEST BENCH

3D Interactive Backflow Testing Simulation Lab

Operate realistic shutoff valves, flush test cocks, connect hydraulic hoses, bleed air, and diagnose internal faults.

Differential Pressure

0.0 PSID

Relief Valve: SEATED (CLOSED)

5-VALVE TEST GAUGE NEEDLE MANIFOLD: Click knob or button to toggle OPEN / CLOSED

Digital Field Test Report

ASSE 5110

Check Valve 1 Differential (PSID):

Relief Valve Opening Point (PSID):

Check Valve 2 Backpressure Test:

Shutoff Valve #2 Tightness:

Final Assembly Determination:

SIMULATION ACTION AUDIT LOG

[System] Virtual test rig initialized. Click valves to operate.

Backflow Tester Certification
Requirements by State

3D Interactive Backflow Testing Simulation Lab

Digital Field Test Report

Backflow Certification Practice Bank

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Backflow Tester Formulas & Quick Reference Sheet

01 Core Hydraulics & Pressure Head Equations

02 Assembly Diagnostics & Troubleshooting Decision Matrix

How to Become a Certified Backflow Tester

Complete 40-Hour Course

Pass Written & Wet Lab

Register & Calibrate Kit

Backflow Testing Business Economics

Backflow Tester Certification Requirements by State

3D Interactive Backflow Testing Simulation Lab

Digital Field Test Report

Backflow Certification Practice Bank

Loading Question...

Backflow Tester Formulas & Quick Reference Sheet

01 Core Hydraulics & Pressure Head Equations

02 Assembly Diagnostics & Troubleshooting Decision Matrix

How to Become a Certified Backflow Tester

Complete 40-Hour Course

Pass Written & Wet Lab

Register & Calibrate Kit

Backflow Testing Business Economics

Download Complete 2026 Backflow Study Guide & Cheat Sheet

Backflow Tester Certification
Requirements by State