Boiler laws and rules

The Washington Administrative Code (WAC) and Revised Code of Washington (RCW) are maintained and updated by the State Office of the Code Reviser (

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2015 Boiler rule development

The Board of Boiler Rules is planning amendments to sections of Chapter 296-104 WAC, Board of Boiler Rules Substantive to clarify existing rules and update the rules to adopt the current national safety standards for boilers and unfired pressure vessels in the state of Washington.

February 3, 2015 Preproposal (CR-101) (115 KB PDF)
March 31, 2015 Proposed Rule-Making (CR-102) (126 KB PDF)
May 27, 2015 Public Hearing at Tacoma L&I Office at 10 a.m. - Public Hearing Information Packet (95 KB PDF)


The adoption date for the rules is June 30, 2015. The rules become effective on September 1, 2015, as follows:

June 30, 2015 Adoption (Rule-Making Order CR-103) - (Available after June 30)

Adopted Rule Language (131 KB PDF)

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