Types
Apprentice registration, journey plumber, master plumber and plumbing contractor are distinct credentials.
Scope:Michigan statewide · verified
Official source →Michigan · Plumbing
Check the credential for your actual work.
Sources checked October2026. This draft distinguishes statewide credentials, local rules and unanswered questions.
What the source review establishes.
Required for regulated plumbing work; individual and contractor credentials differ
Last verified:October2026 for the linked source facts. Unverified fields remain open below. Requirements change — confirm with the state board before applying. Not legal advice.
Read the scope beside the rule.
Experience Exam
Journey applicants: age 18+, 6,000 supervised apprentice hours over at least three years, and written plus practical exams. Master applicants: 4,000 journey hours over the preceding two years and an exam.
Scope:Michigan statewide · verified
Official source →Contractor
A plumbing contractor must hold or employ a master plumber representative and pass the contractor examination; the contractor license is not issued without representation.
Scope:Michigan statewide · verified
Official source →Renewal Fee
Journey renewal: annually April 30, $40. Master and plumbing contractor renewal: every three years April 30, $300 each; combined qualifying master/contractor holders renew through the contractor credential.
Scope:Michigan statewide · verified
Official source →Permits
A contractor designates employed full-time master plumbers to obtain permits; both contractor and master numbers belong on the application.
Scope:Michigan statewide · verified
Official source →Do not treat an unknown as an exemption.
- Initial license and examination charges not fully checked.
- Insurance/bond requirements not verified.
- Check local enforcing agency and project permits.
Confirm your precise work, contractor status and local enforcing authority before applying or offering regulated work.
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