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
Ohio Department of Commerce — Division of Industrial Compliance
Scope of Work
The 1st Class Stationary Steam Engineer is Ohio's top operator credential, authorizing operation of unlimited-size steam plants. Industry-published pathways describe full progression from High Pressure Boiler Operator → 3rd Class → 2nd Class → 1st Class as approximately 8 years; that figure has not been verified against current Ohio Admin. Code 1301:3-5-10 in this scaffold and the editor must confirm. Source: Ohio Admin. Code 1301:3-5-10 (https://www.law.cornell.edu/regulations/ohio/Ohio-Admin-Code-1301-3-5-10).
Experience and Training
Editor must verify the current required hours/years above 2nd Class against Ohio Admin. Code 1301:3-5-10 and the Ohio Department of Commerce Division of Industrial Compliance Boiler Section's current applicant guidance before public launch.
Exam
Written examination required, administered through the Ohio Department of Commerce Division of Industrial Compliance.
Verified May 1, 2026 · compiled from public sources, verify current rules with Ohio Department of Commerce — Division of Industrial Compliance before acting
Exam
Ohio Department of Commerce — Division of Industrial Compliance
Experience and Training
Editor must verify current required experience hours and any approved-course pathway against Ohio Admin. Code 1301:3-5-10 and the Ohio Department of Commerce Division of Industrial Compliance Boiler Section's current applicant guidance before public launch.
Exam
Written examination required, administered through the Ohio Department of Commerce Division of Industrial Compliance.
Verified May 1, 2026 · compiled from public sources, verify current rules with Ohio Department of Commerce — Division of Industrial Compliance before acting
Exam
Ohio Department of Commerce — Division of Industrial Compliance
Experience and Training
Editor must verify current required experience hours and any approved-course pathway against Ohio Admin. Code 1301:3-5-10 and the Ohio Department of Commerce Division of Industrial Compliance Boiler Section's current applicant guidance before public launch.
Exam
Written examination required, administered through the Ohio Department of Commerce Division of Industrial Compliance.
Verified May 1, 2026 · compiled from public sources, verify current rules with Ohio Department of Commerce — Division of Industrial Compliance before acting
Exam
Ohio Department of Commerce — Division of Industrial Compliance
Experience and Training
Editor must verify the current required hours/years above 3rd Class against Ohio Admin. Code 1301:3-5-10 and the Ohio Department of Commerce Division of Industrial Compliance Boiler Section's current applicant guidance before public launch.
Exam
Written examination required, administered through the Ohio Department of Commerce Division of Industrial Compliance.
Verified May 1, 2026 · compiled from public sources, verify current rules with Ohio Department of Commerce — Division of Industrial Compliance before acting
Exam
Ohio Department of Commerce — Division of Industrial Compliance
Scope of Work
The 3rd Class Stationary Steam Engineer license authorizes operation of steam turbines exceeding 30 horsepower. Ohio's Stationary Steam Engineer track is distinct from the Boiler Operator track and is required where steam turbines (rather than just boilers) are present. Source: Ohio Admin. Code 1301:3-5-10 (https://www.law.cornell.edu/regulations/ohio/Ohio-Admin-Code-1301-3-5-10).
Experience and Training
Per Ohio Admin. Code 1301:3-5-10, qualifying pathways include 2,000 hours of operating experience with steam turbines exceeding 30 horsepower; or 1,000 hours of operating experience plus completion of a steam boiler and steam turbine operations course approved by the Ohio Department of Commerce; or holding a High Pressure Boiler Operator license plus 500 hours of operating experience.
Exam
Written examination required, administered through the Ohio Department of Commerce Division of Industrial Compliance.
Verified May 1, 2026 · compiled from public sources, verify current rules with Ohio Department of Commerce — Division of Industrial 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).