Backflow Preventer Testing Requirements
Backflow preventer testing — the annual certified test that must be filed with your water authority, and the monthly visual your staff can do.
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Cross-connection control schedule
Every requirement carries its code section and the edition it was verified against. ★ = qualified in-house under the national code, but licensing commonly required locally — confirm with your AHJ.
| Task | Frequency | Who may perform | Code (edition) | Record |
|---|---|---|---|---|
| Backflow preventer test by certified tester, filed with water authority | Annual | Certified / licensed | Local cross-connection control (ASSE 5013 tester) | Test report filed |
| Backflow preventer visual — leaks, damage | Monthly | In-house (basic) | Best practice / ASSE 5013 | Log |
Other schedules: ASME A17.1 · ANSI/ISEA Z358.1 · NFPA 80 / NFPA 105 · NFPA 101 / NFPA 105 · NFPA 25 (water supply)
National consensus-standard baseline with the edition noted per item. Your state, fire marshal, or accrediting body may require more frequent service or licensed personnel where a qualified person is shown. General information, not legal or engineering advice — confirm with your AHJ.
Questions people ask
- How often does Cross-connection control require inspection?
- Cross-connection control sets a schedule from annual, monthly intervals. The full task-by-task table with code sections and who may perform each task is shown above, and the calendar builder dates it from your real last-completed dates.
- Which of these tasks can be done in-house?
- Tasks marked Tier 1 or Tier 2 can be performed by trained facility staff with documentation under the national code. Tier 3 tasks require a certified or licensed professional. Starred tasks are qualified in-house under the national code but licensing is commonly required locally — confirm with your AHJ.