Michigan HVAC Trainee License

If you're entering the HVAC trade in Michigan and don't yet have the 6,000 hours of experience required for a standard Mechanical Contractor classification, the Mechanic Trainee Registration is your starting credential. It's inexpensive and quick to obtain — but it comes with strict limitations that catch new techs off guard.

What the Trainee Registration Is

The trainee registration is a state-level credential from LARA that authorizes you to perform hands-on mechanical work under the direct, on-site supervision of a licensed contractor. It costs $20 and is a one-time, non-renewable registration.

That "non-renewable" part is important. This isn't a license you renew every few years — it's the one-time registration used for supervised mechanical work while you build qualifying experience.

What You Can and Cannot Do

With a trainee registration, you can:

• Perform supervised mechanical installations, repairs, and maintenance
• Accumulate the 6,000 hours of experience LARA requires for a standard classification
• Work on residential and commercial mechanical systems alongside a licensed contractor

With a trainee registration, you cannot:

• Work independently or unsupervised
• Pull mechanical permits
• Contract directly with homeowners or businesses
• Bid on projects
• Operate a service truck independently

The supervision requirement means a licensed contractor must be physically present on the job site while you perform work. "Available by phone" doesn't satisfy the regulatory definition of direct supervision.

How It Fits the Licensing Path

The typical career sequence in Michigan's mechanical trade:

1. Trainee Registration ($20) — start accumulating supervised hours
2. 6,000 hours of documented experience under a licensed contractor for a standard classification (approximately three years of full-time work)
3. LARA Application ($300) with notarized experience affidavits
4. PSI Exam ($50–$100 per classification) — pass within 365 days of eligibility approval
5. Mechanical Contractor License — full authority to contract, pull permits, and operate independently

Your trainee hours count toward the 6,000-hour requirement as long as your supervising contractor signs the experience verification affidavits that LARA requires. Those affidavits must describe the work you performed in technical detail — equipment types, BTU ratings, fuel classes, and system configurations.

Education Shortcuts

For a standard three-year classification, two paths can substitute for up to 2,000 hours (one year) of the experience requirement:

• Approved HVAC technical degree: An associate degree or technical certificate from an approved program. Submit official college transcripts with your LARA application.
• Registered apprenticeship: Completion of a U.S. Department of Labor-approved training program. Submit your certificate of completion.

For a standard three-year classification, either path still requires at least 4,000 hours (two years) of field experience under a licensed contractor. Education shortens the timeline but doesn't eliminate the supervised work requirement.

Military veterans with documented active-duty mechanical service can receive full experience credit — potentially satisfying the entire 6,000-hour requirement — supported by DD214, DD215, and a commanding officer's experience affidavit.

Common Mistakes

Creating a duplicate MiPLUS account. If you registered as a trainee through LARA's MiPLUS portal, use the same account when you apply for your full contractor license. Creating a new account can disrupt LARA's database, blocking your exam eligibility and requiring manual technical support to resolve.

Not tracking hours from the start. LARA's experience affidavits require granular detail that's hard to reconstruct years later. Keep a running log of your work — the types of systems you installed, equipment specifications, and hours per classification. Your supervising contractor will need this information when they sign your affidavits.

Assuming EPA 608 is enough. Many trainees complete their EPA Section 608 certification and assume they can start taking side jobs. EPA 608 covers refrigerant handling under federal law. It doesn't grant any contracting or permitting authority in Michigan.

The Michigan HVAC License Guide includes an experience documentation tracker designed for trainees who are building toward their 6,000-hour requirement.

See more Michigan guides →