[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

New Jersey Department of Labor and Workforce Development — Bureau of Boiler and Pressure Vessel CompliancePrimary source · New Jersey

Page last refreshed: May 1, 2026

[03·GET LICENSED · NJ]

Boilermaker licensing in New Jersey

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

License classes

NEW-JERSEY · boilermaker

Black Seal — High Pressure Boiler Operator

New Jersey Department of Labor and Workforce Development — Bureau of Boiler and Pressure Vessel Compliance
Exam
NJDOL Bureau of Boiler and Pressure Vessel Compliance

Scope of Work

The Black Seal High Pressure license is required for boilers over 100 horsepower and more than 15 psi steam, or hot water heating boilers over 160 psi with water temperatures over 250°F. The Black Seal is the entry-level high-pressure operator credential and is a prerequisite for the Blue Seal Stationary Engineer credential. Source: New Jersey Boiler, Pressure Vessels and Refrigeration Plants Act and Regulations (https://www.nj.gov/labor/safetyandhealth/resources-support/laws-regulations/boileract.shtml).

Experience and Training

Editor must verify current experience hour/year requirement against the NJDOL Bureau of Boiler and Pressure Vessel Compliance application packet before public launch.

Exam

Written exam required, administered by the NJDOL Bureau of Boiler and Pressure Vessel Compliance.

Verified May 1, 2026 · compiled from public sources, verify current rules with New Jersey Department of Labor and Workforce Development — Bureau of Boiler and Pressure Vessel Compliance before acting

NEW-JERSEY · boilermaker

Blue Seal — 1-C Stationary Engineer

New Jersey Department of Labor and Workforce Development — Bureau of Boiler and Pressure Vessel Compliance
Exam
NJDOL Bureau of Boiler and Pressure Vessel Compliance

Scope of Work

The Blue Seal 1-C Stationary Engineer license is the next step above Black Seal in New Jersey's high-pressure track and is required to operate stationary engines and corresponding refrigeration equipment within the rule's plant-size thresholds. Source: New Jersey Boiler, Pressure Vessels and Refrigeration Plants Act and Regulations (https://www.nj.gov/labor/safetyandhealth/resources-support/laws-regulations/boileract.shtml).

Experience and Training

The Black Seal license is a prerequisite. Editor must verify current additional experience hour/year requirement against the NJDOL Bureau of Boiler and Pressure Vessel Compliance application packet before public launch.

Exam

Written exam required, administered by the NJDOL Bureau of Boiler and Pressure Vessel Compliance.

Verified May 1, 2026 · compiled from public sources, verify current rules with New Jersey Department of Labor and Workforce Development — Bureau of Boiler and Pressure Vessel Compliance before acting

NEW-JERSEY · boilermaker

Gold Seal — 1-A Stationary Engineer

New Jersey Department of Labor and Workforce Development — Bureau of Boiler and Pressure Vessel Compliance
Exam
NJDOL Bureau of Boiler and Pressure Vessel Compliance

Scope of Work

The Gold Seal license is New Jersey's top stationary engineer credential, required for boilers over 3,000 HP and steam pressures greater than 15 psi. Source: New Jersey Boiler, Pressure Vessels and Refrigeration Plants Act and Regulations (https://www.nj.gov/labor/safetyandhealth/resources-support/laws-regulations/boileract.shtml).

Experience and Training

Editor must verify current experience requirement against the NJDOL Bureau of Boiler and Pressure Vessel Compliance application packet before public launch.

Exam

Written exam required, administered by the NJDOL Bureau of Boiler and Pressure Vessel Compliance.

Verified May 1, 2026 · compiled from public sources, verify current rules with New Jersey Department of Labor and Workforce Development — Bureau of Boiler and Pressure Vessel Compliance before acting

NEW-JERSEY · boilermaker

Red Seal — 1-B Stationary Engineer

New Jersey Department of Labor and Workforce Development — Bureau of Boiler and Pressure Vessel Compliance
Exam
NJDOL Bureau of Boiler and Pressure Vessel Compliance

Scope of Work

The Red Seal 1-B Stationary Engineer license is required for chief-engineer assignments at facilities over 1,000 HP, or for operator coverage at facilities of any capacity range above the Blue Seal threshold. Source: New Jersey Boiler, Pressure Vessels and Refrigeration Plants Act and Regulations (https://www.nj.gov/labor/safetyandhealth/resources-support/laws-regulations/boileract.shtml).

Experience and Training

Blue Seal 1-C is the typical step below Red Seal. Editor must verify current additional experience hour/year requirement against the NJDOL Bureau of Boiler and Pressure Vessel Compliance application packet before public launch.

Exam

Written exam required, administered by the NJDOL Bureau of Boiler and Pressure Vessel Compliance.

Verified May 1, 2026 · compiled from public sources, verify current rules with New Jersey Department of Labor and Workforce Development — Bureau of Boiler and Pressure Vessel Compliance before acting

NEW-JERSEY · boilermaker

Low Pressure — White Seal

New Jersey Department of Labor and Workforce Development — Bureau of Boiler and Pressure Vessel Compliance
Exam
NJDOL Bureau of Boiler and Pressure Vessel Compliance

Scope of Work

The White Seal license authorizes operation of low pressure boilers in New Jersey (boilers below the high-pressure thresholds defined by the New Jersey Boiler, Pressure Vessels and Refrigeration Plants Act). Source: New Jersey Boiler, Pressure Vessels and Refrigeration Plants Act and Regulations (https://www.nj.gov/labor/safetyandhealth/resources-support/laws-regulations/boileract.shtml).

Experience and Training

Editor must verify current experience requirements against the NJDOL Bureau of Boiler and Pressure Vessel Compliance application packet before public launch.

Exam

Written exam required, administered by the NJDOL Bureau of Boiler and Pressure Vessel Compliance.

Verified May 1, 2026 · compiled from public sources, verify current rules with New Jersey Department of Labor and Workforce Development — Bureau of Boiler and Pressure Vessel Compliance 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).