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San Francisco fire-line backflow testing

The official list is already geared toward certified testers rather than generic plumbers.

Open fire-line 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

The official list is already geared toward certified testers rather than generic plumbers.

  • 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 certified tester list is public and specific.
  • Commercial and larger protected services are a natural fit for this route.
  • Official routing stays separate from directory inventory.
Workflow

San Francisco workflow order

  1. Confirm the assembly type and compliance requirement.
  2. Use a certified tester from the official list.
  3. Follow SFPUC utility instructions for accepted reporting.