Boiler Certification

Bates Technical College offers Boiler Operator Certification Testing for:

  • Class I Chief Operating Engineer
  • Class II and III Operating Engineer
  • Class IV and V Boiler Fireman

Certification is required to operate boilers in the City of Tacoma. Bates administers testing monthly at South Campus, 2201 South 78th Street, Tacoma. Call 253.680.7402 for more information about scheduling a test.

All boiler operator certificates must be renewed annually. Renewal notices will be mailed out by June 1. The cost is $60 to renew between June 1 and the expiration date (Aug. 1). If certificates are not renewed by the expiration date, certificates will enter a 45-day grace period (ending on Sept. 15). During this grace period, a late fee of $25 will be added. Therefore, the total cost to renew a certificate throughout the grace period is $85.

About Boiler Refresher

  • It is required to take a Boiler Refresher course every five years.
  • Refresher courses are usually eight hours long and finished in one or two days. They consist of a review of operation safety and give operators an overview of new technology. An open book test (on what was covered in class) will be given at the end.
  • Students will receive a Certificate of Completion at the end of the class. You must submit a copy of that Certificate of Completion as proof of attendance.
  • Notification will be mailed out a year in advance as a reminder to take a Boiler Refresher course and will include a list of institutions that offer approved courses. This requirement is in addition to paying your annual renewal fee.
  • Failure to complete a course will result in the expiration of your certificate.
  • The tuition paid for the Boiler Refresher course cannot be applied towards your annual renewal fee.

If you are interested in being a boiler instructor, please call 253.680.7402.

Boiler Certification exams are held monthly on Wednesdays. Please note that you must turn in a completed application form on or before the application deadline.

Testing takes place from 5-7 p.m. at Bates’ South Campus in Building E, Room E101B.

Samuel Cureton, Chief Boiler Certification Examiner, evaluates each application and will contact individuals who do not meet the exam eligibility criteria. If you have any questions about certification test eligibility, please contact Samuel Cureton at 253.680.7407 or

Exam Dates for 2024

Application Deadline

January 17January 9
February 21February 13
March 20March 12
April 17April 9
May 15May 7
June 26 (Adjusted for Juneteenth holiday.)June 18
July 17July 9
August 21August 13
No test, Summer Break
October 16October 8
November 20November 12
December 18December 10

Renton Technical College

300 NE 4th Street
Renton, WA 98056

In-person Classes: 8 a.m.-4 p.m.
Price: $149

  • April 20
  • May 11
  • June 15

Verify Training

6624 S. 196th St, STE U-100
Kent, WA 98032

Accepting online registrations only.

In-person Course

Time: 8 a.m.-5 p.m.
Price: $250

  • March 15
  • April 19
  • May 17
  • June 14
  • July 12
  • August 16

Boiler Symposium
June 27-28, 2024
Hosted by the Western Washington Stationary Engineers Training Trust
Location: IUOE Local 302 Headquarters in Bothell, WA

Substitution for the Boiler Refresher is now allowed. Candidates must submit evidence of successful course/event completion to meet the refresher training requirement. The substitution must meet the same requirements as the Boiler Refresher.

  • Topics must include boiler safety, regulation additions/changes and new technology
  • Minimum of eight (8) hours of instruction
  • Include a written, open-book examination

Allowable Substitution

  • Completion of a recognized School of Technology or Boiler Training Program during the refresher cycle time period
  • Industry training events, such as the Washington State Boiler Inspectors Association (WSBIA) Boiler Operators Symposium

Approved Substitutions