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Maryland Board of Stationary Engineers

Important COVID-19 Information for Customers
(Updated March 27, 2020)

The offices of the Maryland Board of Stationary Engineers currently have limited access to the public. Please be patient with us, as it may take longer than usual to respond to voicemails and e-mails. E-mails are preferable to phone calls at this time. We can be reached using our contacts page for telephone numbers and e-mail addresses of individual staff members, or you may send your concerns to our general e-mail address and your message will be routed to the appropriate person.

It is important to note that all license expiration dates have been temporarily extended to May 1, per an Executive Order from Governor Larry Hogan. This is subject to being extended as the response to the coronavirus develops. You are encouraged to continue renewing your licenses online, and performing all other activities that are required for your license to the extent that you are able.

Coronavirus/COVID-19 Information
Coronavirus/COVID-19 Information


News and Updates

New! PSI Examination Services has closed all PSI-owned and operated test centers due to COVID-19. Please see PSI’s notification message to exam candidates including directions on rescheduling exams and updated closure information. (Updated March 20, 2020)

Reference Materials for the Stationary Engineer Examinations

Notice of Owners and Operators - Licensing Requirements

Boiler and Pressure Vessel Safety

Proposed Regulations Currently Open for Public Comment

None at this time.

To register your comments with the Board, send your letter to the Maryland Board of Stationary Engineers, 500 N. Calvert Street, 4th Floor, Baltimore, MD 21202; call 410-230-6231; or e-mail

Contact the BoardContact the Board
Maryland Board of Stationary Engineers
500 North Calvert Street, Room 481
Baltimore, Maryland 21202-3651