Ironworker License Requirements in Missouri
License Not RequiredLast verified March 24, 2026
Agency And Exam
Issuing agency: Missouri Department of Labor and Industrial Relations
Official licensing agency website
Exam provider: Not listed
Reciprocity And License Levels
License levels
Not listed
Reciprocity states
None listed
Notes
Missouri does not require a statewide ironworker license for individual workers. No state-level individual trade license exists for ironworkers in Missouri. Some municipalities may have local requirements. Workers typically train through union apprenticeship programs affiliated with Ironworkers International locals.