All boiler and pressure vessel inspectors working in Washington are required to have a "work card" issued by L&I.

To be eligible for a work card, you must:

Boiler Inspector Examination

Washington State boiler inspector exams are administered upon request. For exam scheduling and information, please contact the Boiler Program's Administrative Assistant at 360-902-5271. Applications must be received 30 days prior to the test day. An examination fee will be charged.

Re-Examination

National Board commissioned inspectors who have not worked in the State of Washington for 3 years must re-take the Washington State Examination.

National Board Inservice Commission Exams are offered by request four times a year, namely the first Wednesday and following Thursday of the months of March, June, September and December. For more information, please visit the National Board website.

Examination & Certification Fees
  • Examination fee: A fee of $91.52 will be charged for each applicant sitting for an inspection examination(s).
  • Special inspector commission: An initial fee of $49.40 (including work card).
    • Total Due: $140.92 (exam and work card fee).
      • This amount must be paid before the exam. Payment can be made at the Labor & Industries office, online, or mailed and received by our office before the exam date.
      • If paid at a service location, or online, please retain a copy of the receipt and send it to us prior to the exam.
    • Annual special inspector commission: A fee of $30.68 for annual renewal.
    • If a special inspector changes companies: A work card fee of $49.40 will be charged.
Boiler Operator Licensing Information

A boiler operator's license is not required for individuals who operate boilers in the state of Washington. However, a valid boiler operator's license is required for:

  • City of Seattle - 206-684-5174.
  • City of Spokane - 509-625-6313.
  • City of Tacoma - call Bates Technical College at 253-680-7400.
  • Companies or facilities that have internal boiler operator licensing requirements – refer to your company’s policies.