The California State Pipe Trades Council (CSPTC) represents approximately 30,000 plumber, pipefitter, and sprinklerfitter members in local unions throughout the state of California. There are 28 local unions in California that make up the CSPTC.

The CSPTC is affiliated with the United Association of Journeyman and Apprentices of the Plumbing and Pipe Fitting Industry of the United States and Canada (U.A.) representing approximately 300,000 members.