Installation or reinstallation permits are required before any new or existing boiler or unfired pressure vessel is installed, reinstalled, or moved in the state of Washington. L&I staff perform the inspections and investigations and issue permits and operating certificates.

After Floods & Other Natural Disasters: Information to assist in the recovery of boiler systems affected by flooding to help mitigate further risks to public safety and property damage.

What we do:

• Perform safety inspections and issue operating permits for over 111,000 boilers and unfired pressure vessels throughout the state.
• Administer National Board and State examinations.
• Investigate accidents involving boiler or pressure vessel.
• Inspect, audit and review manufacturers of boilers and pressure vessels for conformance with national construction standards.

Why we do it:

• To ensure public safety by performing annual or biennial inspections.
• To ensure proper manufacturing – We ensure that boilers and pressure vessels are manufactured to approved codes and standards.
• To help owners, manufacturers and repair firms understand the codes, rules and regulations.

If you have any questions, please contact the Boiler Section.