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Phoenix approved backflow testers

Use this page when the search or notice says approved, certified, registered, or authorized backflow tester for Phoenix.

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City: Phoenix Utility: City of Phoenix Backflow Prevention Program Cadence: Upon installation and annually thereafter Last verified: 2026-06-29
Local answer

What to check for Phoenix

Use this page when the search or notice says approved, certified, registered, or authorized backflow tester for Phoenix.

  • Due basis: Phoenix requires certified testers on the city list to perform testing and repairs, and the approved report has to be forwarded to Planning and Development by the due date shown on the work order.
  • Who is affected: Commercial, industrial, irrigation, and fire-line services plus any residential or multifamily property where Phoenix determines that a cross-connection hazard exists.
  • Program phone: 602-534-2140
Local signals

Signals that matter before you act

  • Open the Phoenix tester list
  • Confirm tester status on the governing list before treating a provider as approved.
  • Use the utility workflow for deadlines, report acceptance, and submission requirements.
Workflow

Phoenix workflow order

  1. Confirm whether Phoenix has identified the service as requiring a backflow assembly.
  2. Use a tester from the city's approved tester list.
  3. Complete the approved report and deliver it by the due date shown on the work order.
  4. Retain the testing records in case Phoenix requests follow-up documentation.