Local 398 Plumbers and Steamfitters

09/17/2026

Prop 45 makes it easier to exploit workers on job sites with little oversight while making it harder for workers to speak out against unsafe working conditions. It doesn't benefit the working people we serve—make sure you vote NO on Prop 45.

09/11/2026

https://local398.org/endorsements/

Local 398 endorsements LA/OC Building Trades CHECK voter REGISTRATION REGISTER to vote

09/04/2026

This Labor Day, UA Local 398 proudly honors the generations of working men and women whose skill, determination, and solidarity have built our communities and strengthened our nation.

Today, the United Association is more than 410,000 members strong—the largest our union has ever been. That historic growth is a powerful reminder of what working people can accomplish when we stand together.

As we carry this proud legacy forward, we remain committed to training the next generation, expanding pathways into the middle class, and building a more hopeful and prosperous future for every working family.

Happy Labor Day from UA Local 398.

08/21/2026

08/20/2026

Great job to Drew Valdivia, Sean Cavanah, and Matthew Fulkerson. Tonight they worked late, speaking before the Rancho Cucamonga City Council. The City Council voted unanimously to approve a project with a community workforce agreement. Thank you to everybody who participated.

08/20/2026

https://www.instagram.com/reel/DcPaRedE81p/?igsh=NTc4MTIwNjQ2YQ==

08/03/2026

https://local398.org/the-heart-of-the-united-association/
Updated.

Every day across North America UA members are involved in community projects and a whole host of charitable activities that support families and those in need, regardless of union affiliation. This…

06/19/2026

Happy Juneteenth from the UA General Officers!

06/05/2026

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