DLLR's Division of Occupational and Professional Licensing

• Grade 1 Engineer:  Engineer 500 or more horsepower (in any building)\
• Grade 2 Engineer:  Engineer 300 to 499 horsepower (in any building)
• Grade 3 Engineer:  Engineer 100 to 299 horsepower (in any building)
• Grade 4 Engineer:  Engineer 30 to 99 horsepower (in any building regardless of use)
• Grade 5 Engineer:  Engineer 30 to 99 horsepower (in a building not open for public use)

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Questions or comments regarding the Board of Stationary Engineers may be directed to stationaryeng@dllr.state.md.us.
Questions or comments regarding the Division of Occupational and Professional Licensing may be directed to op@dllr.state.md.us.
Questions or comments regarding the DLLR website may be directed to webmaster@dllr.state.md.us.