Stationary Engineers Grade 3 License
General Info - Statewide License
Grade 3 license - Operates 100-299 HP equipment.
Obtaining the License
Ready to get your license? - Steps, Requirements, and Documents
Possess at least ONE of the following qualifications:
1. ) Two years' experience as active MD Grade 4 or 5; OR
2.) One year experience as active MD Grade 4 or 5, and six credit hours or CEUs in boiler operations or safety; OR
3.) Valid marine engineer's certificate or chief petty officer's certificate from the United States Navy; OR
4.) Equivalent experience to 1, 2, or 3 above may be submitted to the Board for consideration and approval.
Pass an examination with a score of at least 70%.
Work summary data sheet and/or valid marine officer's certificate and/or chief petty officer's certificate
Apply for the License
Complete the form
Maintaining Your License
Renewal and maintenance -
Maintaining your License (aka Related forms/requirements to maintain License/stay in good standing)
Submit a renewal application.
Pay renewal fee.
Why the License is required?
To ensure that qualified individuals provide stationary engineer services:
- oversee the operation of a power plant,
- plant of machinery, or
Each generating pressure of more than 15 PSI and operating at 30 or more horsepower (HP).
Or a hot water boiler that operates at pressures exceeding 160 psig or temperatures exceeding 250° F;
- To protect the public,
- Provide safe operation of equipment, and
- Promote high professional standards.
What laws and regulations give Department of Labor, Licensing & Regulation the legal authority to issue this approval?