Michigan Plumbing License Requirements
Yes. Michigan licenses plumbers through the Michigan LARA Bureau of Construction Codes. It issues apprentice, journeyman, master and contractor credentials.
State plumber license · By BrazeJobs Team · Updated
License tiers
| Apprentice | Registration |
| Journeyman | Journey Plumber |
| Master | Master (4,000 hours as journeyman over 2+ years) |
| Contractor | Plumbing Contractor (needs master) |
Requirements
| Exam | State exam |
| Minimum age | 18 |
| Continuing education | Code update course each code cycle |
| Local license | No (state license covers) |
| Board | Michigan LARA Bureau of Construction Codes |
Exam
| Exam provider | PSI (for LARA Bureau of Construction Codes) |
Bureau of Construction Codes contracts PSI; approved applicants hear from PSI within 10 business days; application valid one year to pass all required exams.
- Source: michigan.gov · checked November 6, 2026
Apprenticeship
| Registering agency | U.S. Department of Labor Office of Apprenticeship (no state agency) |
Programs register through the Office of Apprenticeship; use the Partner Finder for local sponsors.
- Source: apprenticeship.gov · checked November 6, 2026
Plumbing code
| Code in force | 2021 IPC (as 2021 Michigan Plumbing Code) |
Effective March 12, 2024. Residential work follows the 2015 Michigan Residential Code.
- Source: michigan.gov · checked November 5, 2026