Requirements, license levels, and the issuing authority, sourced from Maryland's official board.
The pressure and horsepower thresholds are the whole question in Maryland. Establish what the plant actually operates at before applying, the licence follows the equipment, not the job title, and the grade you need follows the size of the plant.
| Requirements | MARYLAND HAS A DEDICATED BOARD OF STATIONARY ENGINEERS, which is unusual, most states run boiler licensing out of a labour or safety division rather than a named board. WHAT TRIGGERS THE LICENCE, AND THE THRESHOLDS ARE PRECISE. Maryland licenses stationary engineers to oversee the operation of BOILERS GENERATING PRESSURE OF MORE THAN 15 PSI AND OPERATING AT 30 OR MORE HORSEPOWER, or HOT WATER BOILERS operating at pressures EXCEEDING 160 PSIG or temperatures EXCEEDING 250°F. Read those numbers before assuming a licence is needed. Equipment below the thresholds is outside the licensing requirement, which is why a building with a small low-pressure heating boiler may need no licensed engineer at all while the plant next door does. TYPICAL ELIGIBILITY across stationary engineer programmes, Maryland included, is: be at least 18 years of age, meet a residency period, meet the experience requirement for the grade sought, and pass a written examination. The board publishes its requirements sheet in full. |
| Reciprocity | The Board of Stationary Engineers assesses out-of-state applicants against its own grade requirements; check the board's requirements page for the current position before assuming an examination waiver. |
| Renewal | Licences renew with the Board of Stationary Engineers through the Division of Occupational and Professional Licensing on its published cycle. |
| Notes | The pressure and horsepower thresholds are the whole question in Maryland. Establish what the plant actually operates at before applying, the licence follows the equipment, not the job title, and the grade you need follows the size of the plant. |
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Sources: labor.maryland.gov, labor.maryland.gov, www.bls.gov. Always confirm current requirements with the issuing authority.
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