Plumbers

Plumbing Rule Changes

The links below are maintained and updated by the State Office of the Code Reviser. If you receive an error message when referencing a link to a specific section of Washington Administrative Code (WAC) or Revised Code of Washington (RCW), try your search here.

Plumbers Certification Law - RCW 18.106

Plumber Certification Rules - WAC 296-400A

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