Sheet Metal Worker License Requirements in Washington
License RequiredLast verified March 24, 2026
Agency And Exam
Issuing agency: Washington State Department of Labor and Industries
Official licensing agency website
Exam provider: PSI
Reciprocity And License Levels
License levels
Apprentice Sheet Metal WorkerJourneyman Sheet Metal Worker
Reciprocity states
None listed
Notes
Washington State requires journeyman certification for sheet metal workers through the Department of Labor and Industries. Applicants must complete an approved apprenticeship program (typically 5 years) and pass a certification examination. Contractor licensing is also required for businesses. Verify current requirements with L&I.