Certification to install and annually test backflow prevention devices on potable water systems in MA. Required by most water departments.

Who needs it

Journeyman and master plumbers who want to bid commercial work or sign annual backflow test contracts.

How to get it

Complete an approved 40-hour backflow tester course (Peterson School, NEIWPCC, etc.), then pass the certification exam.

Cost

Course + exam: ~$500–$900. Recertification every 2–3 years.

Where to start

NEIWPCC — Backflow Prevention Training ↗