[TN · STATE LICENSING · REPUBLISHER]
Licensing data: Data as of May 5, 2026

Trades Navigator summarizes state licensing rules from the state board. We do not characterize the rules, order classes against each other, or combine them into a single number. Each license class links to the issuing authority for primary-source verification.

Reported

Massachusetts Division of Professional Licensure — Board of State Examiners of Electricians / Board of State Examiners of Plumbers and Gas Fitters — Primary source · Massachusetts

Page last refreshed: May 1, 2026

[03·GET LICENSED · MA]

Boilermaker licensing in Massachusetts

State-issued license classes for boilermakers in Massachusetts. Each class links to the issuing state board for primary-source verification.

License classes

MASSACHUSETTS · boilermaker

Stationary Engineer — First Class

Massachusetts Department of Public Safety — Board of Boiler Rules
Exam
Massachusetts Board of Boiler Rules

Scope of Work

A First Class Engineer license authorizes the holder to take charge of and operate any steam plant in Massachusetts, regardless of horsepower or pressure rating. Source: M.G.L. c.146 §49 (https://malegislature.gov/Laws/GeneralLaws/PartI/TitleXX/Chapter146/Section49) and Mass.gov Boiler & Pressure Vessel Program Licensing & Exams (https://www.mass.gov/info-details/boiler-pressure-vessel-program-licensing-exams).

Experience and Training

Massachusetts requires documented operating experience under a higher-grade engineer plus written and oral examinations administered by the Board of Boiler Rules. Specific hour totals at each grade vary; applicants typically progress 2nd Class Fireman → 1st Class Fireman → 3rd Class Engineer → 2nd Class Engineer → 1st Class Engineer. Editor must verify current month/year experience requirement at each step against the current Board application packet at https://www.mass.gov/how-to/apply-for-fireman-and-engineer-licenses.

Exam

Written and oral examinations administered by the Massachusetts Board of Boiler Rules. Subject matter covers boiler construction, operation, water treatment, combustion, controls, and Massachusetts boiler law (M.G.L. c.146).

Reciprocity

Out-of-state applicants may apply for endorsement; Board reviews equivalency on a case-by-case basis. Editor must confirm current reciprocity language with the Department of Public Safety.

Renewal

Massachusetts engineer licenses renew on a multi-year cycle. Editor must confirm current cycle length and any continuing-education requirement against the Board's current renewal notice before public launch.

Verified May 1, 2026 · compiled from public sources, verify current rules with Massachusetts Department of Public Safety — Board of Boiler Rules before acting

MASSACHUSETTS · boilermaker

First Class Fireman

Massachusetts Department of Public Safety — Board of Boiler Rules
Exam
Massachusetts Board of Boiler Rules

Scope of Work

A First Class Fireman license authorizes the holder to take charge of and operate any boiler or boilers where the safety valve or valves are set to blow at a pressure not exceeding 25 pounds per square inch, or to operate high-pressure boilers under the engineer or fireman in direct charge thereof. Source: M.G.L. c.146 §49 (https://malegislature.gov/Laws/GeneralLaws/PartI/TitleXX/Chapter146/Section49).

Experience and Training

Documented operating experience plus written and oral examinations administered by the Massachusetts Board of Boiler Rules. Editor must verify current hour requirement against the Board application packet (https://www.mass.gov/how-to/apply-for-fireman-and-engineer-licenses).

Exam

Written and oral examinations administered by the Massachusetts Board of Boiler Rules.

Verified May 1, 2026 · compiled from public sources, verify current rules with Massachusetts Department of Public Safety — Board of Boiler Rules before acting

MASSACHUSETTS · boilermaker

Stationary Engineer — Second Class

Massachusetts Department of Public Safety — Board of Boiler Rules
Exam
Massachusetts Board of Boiler Rules

Scope of Work

A Second Class Engineer license authorizes the holder to take charge of and operate a boiler or boilers, and to take charge of and operate engines no one of which exceeds 150 horsepower; or to operate a first-class plant under the engineer in direct charge thereof. Source: M.G.L. c.146 §49 (https://malegislature.gov/Laws/GeneralLaws/PartI/TitleXX/Chapter146/Section49).

Experience and Training

Documented operating experience under a higher-grade engineer plus written and oral examinations administered by the Massachusetts Board of Boiler Rules. Editor must verify current hour requirement against the Board application packet (https://www.mass.gov/how-to/apply-for-fireman-and-engineer-licenses).

Exam

Written and oral examinations administered by the Massachusetts Board of Boiler Rules.

Renewal

Massachusetts engineer licenses renew on a multi-year cycle. Editor must confirm current cycle length against the Board's renewal notice.

Verified May 1, 2026 · compiled from public sources, verify current rules with Massachusetts Department of Public Safety — Board of Boiler Rules before acting

MASSACHUSETTS · boilermaker

Second Class Fireman

Massachusetts Department of Public Safety — Board of Boiler Rules
Exam
Massachusetts Board of Boiler Rules

Scope of Work

A Second Class Fireman license authorizes the holder to operate any boiler or boilers under the engineer or fireman in direct charge thereof. Source: M.G.L. c.146 §49 (https://malegislature.gov/Laws/GeneralLaws/PartI/TitleXX/Chapter146/Section49).

Experience and Training

Entry-level Massachusetts boiler license. Documented operating experience plus written and oral examinations administered by the Board of Boiler Rules. Editor must verify current hour requirement against the Board application packet (https://www.mass.gov/how-to/apply-for-fireman-and-engineer-licenses).

Exam

Written and oral examinations administered by the Massachusetts Board of Boiler Rules.

Verified May 1, 2026 · compiled from public sources, verify current rules with Massachusetts Department of Public Safety — Board of Boiler Rules before acting

MASSACHUSETTS · boilermaker

Stationary Engineer — Third Class

Massachusetts Department of Public Safety — Board of Boiler Rules
Exam
Massachusetts Board of Boiler Rules

Scope of Work

A Third Class Engineer license authorizes the holder to take charge of and operate a boiler or boilers not exceeding, in the aggregate, 150 horsepower when solid fuel is burned, or not exceeding, in the aggregate, 500 horsepower when steam is generated by liquid or gaseous fuel, electric or atomic energy, or any other source of heat. Source: M.G.L. c.146 §49 (https://malegislature.gov/Laws/GeneralLaws/PartI/TitleXX/Chapter146/Section49).

Experience and Training

Documented operating experience under a higher-grade engineer plus written and oral examinations administered by the Massachusetts Board of Boiler Rules. Editor must verify current hour requirement against the Board application packet (https://www.mass.gov/how-to/apply-for-fireman-and-engineer-licenses).

Exam

Written and oral examinations administered by the Massachusetts Board of Boiler Rules.

Verified May 1, 2026 · compiled from public sources, verify current rules with Massachusetts Department of Public Safety — Board of Boiler Rules before acting

Free educational resource. Not legal, financial, or career advice. Trades Navigator compiles state board rules, statutes, and federal data into a navigable layer linked to primary sources. We do not maintain editorial attestation on each line. Always verify the specific number, fee, deadline, or rule against the linked primary source before relying on it. Confirm any decision with the relevant state agency, a lawyer, or an accountant.

Correction reports open at launch (target May 2026).