Requirements, license levels, and the issuing authority, sourced from Maine's official board.
Maine licenses boiler operators and stationary steam engineers statewide through the Board of Boilers and Pressure Vessels, with a training permit leading to a High Pressure Boiler Operator license and then four engineer classes scaled by plant steam capacity.
| Requirements | A High Pressure Boiler Operator applicant must have six months of experience as a high pressure boiler operator under a training permit issued by the Board, and pass the examination. The training permit is not renewable and is limited to one year. Each engineer class is then built on the class below it: Fourth Class requires one year of operating experience as a holder of a high pressure boiler operator license; Third Class requires one year as a holder of a Fourth Class Engineer license; Second Class requires two years as a holder of a Third Class Engineer license; First Class requires two years as a holder of a Second Class Engineer license. All examinations are 100 multiple choice questions with a passing score of 70 percent. License authority is scaled by plant capacity: Fourth Class may have charge of a plant of not more than 50,000 pounds per hour, Third Class not more than 100,000 pounds per hour, Second Class not more than 200,000 pounds per hour, and First Class may operate, supervise or have charge of a plant of unlimited steam capacity. Fees are $150 for the license plus $21 for a criminal background check. |
| Reciprocity | The program's steam engineer licensing FAQ states that an applicant holding a current United States Coast Guard or Canadian marine engineer license who has worked as a boiler engineer or operator three of the five years before application qualifies for a license without taking an examination, limited to the grade equivalent to the credential held. Applicants with military boiler operator experience and training are directed to contact the Board before applying so that appropriate credit for military training and experience can be considered. Reciprocity with other states is not addressed on the program's published pages. |
| Renewal | The High Pressure Boiler Operator license and all four Stationary Steam Engineer classes renew every three years based on the date of first licensure, with a $150 renewal fee. Renewal up to 90 days late adds a $50 fee; from 91 days to two years late costs the $150 license fee plus a $100 penalty; after two years the person must reapply as a new applicant. The Boiler Inspector license renews annually. No continuing education requirement is stated on the program's published pages. |
| Notes | Maine licenses boiler operators and stationary steam engineers statewide through the Board of Boilers and Pressure Vessels, with a training permit leading to a High Pressure Boiler Operator license and then four engineer classes scaled by plant steam capacity. |
A free report on your market: what the trade pays, how that compares with nearby counties, and where your credential sits against the local licensed workforce. No account needed.
Sources: www.maine.gov, www.maine.gov, www.maine.gov, www.maine.gov. Always confirm current requirements with the issuing authority.
This page is a free snapshot of Maine. Track the same market every night and see which contractors just got licensed, added a trade, or dropped off, and pull the full record, with contact details, on any of them. Ask it anything, track what matters, and get the weekly intelligence email. Free trial, cancel anytime.