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Annual city route

San Francisco annual backflow testing

San Francisco's strongest public signal is the certified tester list itself.

Open annual testing workflow Utility requirements Request local help
City: San Francisco Utility: San Francisco Public Utilities Commission Backflow Prevention Program Cadence: On the local certification cycle for protected assemblies Last verified: 2026-06-29
Local answer

What to check for San Francisco

San Francisco's strongest public signal is the certified tester list itself.

  • Due basis: San Francisco pushes users to a certified tester list through SF.gov and keeps the utility contact path inside SFPUC channels.
  • Who is affected: SFPUC customers and protected San Francisco properties whose assemblies need a certified tester from the city's accepted list.
  • Program phone: 415-551-4720
Local signals

Signals that matter before you act

  • The official list includes company names and contact details.
  • The route is an authority-first list, not a private directory.
  • SFPUC contact remains the support layer behind the tester routing.
Workflow

San Francisco workflow order

  1. Confirm the property has a backflow assembly inside the SFPUC program.
  2. Choose a certified tester from the SF.gov list.
  3. Coordinate the accepted report through the city utility workflow.