Boilermaker License Requirements in Wisconsin
License RequiredLast verified March 24, 2026
Agency And Exam
Issuing agency: Wisconsin Department of Safety and Professional Services, Safety and Buildings Division
Official licensing agency website
Exam provider: State-administered
Reciprocity And License Levels
License levels
Boiler Operator - Low PressureBoiler Operator - Second ClassBoiler Operator - First Class
Reciprocity states
None listed
Notes
Wisconsin requires boiler operator licensing under the Department of Safety and Professional Services, Safety and Buildings Division. License classes are based on boiler pressure and capacity. Applicants must meet experience requirements and pass state examinations under Wisconsin Administrative Code SPS 341.