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.
Exam
Montana DLI Boiler Operator Program
Experience and Training
No prior experience requirements per Montana DLI; written exam required.
Exam
Required written exam administered by the Boiler Operator Program.
Fees and Renewal
Application fee $70. Annual renewal; renewal fee $35.
Verified May 1, 2026 · compiled from public sources, verify current rules with Montana Department of Labor & Industry — Boiler Operator Program before acting
Exam
Montana DLI Boiler Operator Program
Exam
Required written exam administered by the Boiler Operator Program.
Fees and Renewal
Application fee $70. Annual renewal between Feb 1 and Apr 1; renewal fee $35.
Verified May 1, 2026 · compiled from public sources, verify current rules with Montana Department of Labor & Industry — Boiler Operator Program before acting
Exam
Montana DLI Boiler Operator Program
Experience and Training
2 months full-time experience (320 hours) under a licensed boiler engineer, or completion of a 6-hour approved limited-low-pressure course plus 8 hours under a licensed boiler engineer.
Exam
Required written exam administered by the Boiler Operator Program.
Fees and Renewal
Application fee $70. Annual renewal; renewal fee $35.
Verified May 1, 2026 · compiled from public sources, verify current rules with Montana Department of Labor & Industry — Boiler Operator Program before acting
Exam
Montana DLI Boiler Operator Program
Experience and Training
3 months full-time experience (480 hours) under a licensed boiler engineer, or completion of an approved low-pressure-boiler training course plus 40 hours under a licensed boiler engineer.
Exam
Required written exam administered by the Boiler Operator Program at Montana Job Services.
Fees and Renewal
Application fee $70. Annual renewal; renewal fee $35.
Verified May 1, 2026 · compiled from public sources, verify current rules with Montana Department of Labor & Industry — Boiler Operator Program before acting
Exam
Montana DLI Boiler Operator Program
Experience and Training
Two years of full-time boiler operating experience, or a Third Class Boiler Engineer license plus one year of additional experience.
Exam
Required written exam administered by the Boiler Operator Program.
Fees and Renewal
Application fee $70. Annual renewal; renewal fee $35.
Verified May 1, 2026 · compiled from public sources, verify current rules with Montana Department of Labor & Industry — Boiler Operator Program before acting
Exam
Montana DLI Boiler Operator Program
Experience and Training
6 months full-time experience (960 hours) under a licensed boiler engineer, or completion of an approved training course plus 40 hours under a licensed boiler engineer.
Exam
Required written exam administered by the Boiler Operator Program.
Fees and Renewal
Application fee $70. Annual renewal; renewal fee $35.
Verified May 1, 2026 · compiled from public sources, verify current rules with Montana Department of Labor & Industry — Boiler Operator Program before acting
Exam
Montana DLI Boiler Operator Program
Experience and Training
At least 50 hours of experience with traction engines, plus completion of an approved steam school.
Exam
Required written exam administered by the Boiler Operator Program.
Fees and Renewal
Application fee $70. Annual renewal; renewal fee $35.
Verified May 1, 2026 · compiled from public sources, verify current rules with Montana Department of Labor & Industry — Boiler Operator Program 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).