Tester city route

San Francisco approved backflow testers

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

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

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

  • 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

  • Open the SF.gov certified tester list for San Francisco backflow assemblies
  • 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

San Francisco workflow order

  1. Confirm the property needs a certified backflow test.
  2. Use the official SF.gov tester list.
  3. Schedule the inspection or test with a certified company.
  4. Stay inside the utility's accepted reporting path.