Michigan HVAC Regulatory Oversight for 2026: Complete Guide

Understanding Michigan HVAC regulatory oversight is essential for contractors, businesses, and homeowners navigating the state's energy landscape. Michigan's regulatory environment involves multiple agencies overseeing utility rates, contractor licensing, and energy policy. This comprehensive guide covers everything you need to know about Michigan HVAC regulations heading into 2026.

The regulatory oversight framework in Michigan affects how HVAC contractors operate, what utility rates consumers pay, and how energy infrastructure develops across the state. Whether you're an HVAC contractor seeking licensure or a business evaluating Michigan's energy market, understanding these regulatory structures is critical for success.

Michigan Public Service Commission: Primary Regulatory Oversight

The Michigan Public Service Commission (MPSC) serves as the primary regulatory body for Michigan's investor-owned utilities. The MPSC regulates electric power, telecommunications, and natural gas services, with headquarters in Lansing. The mission of the MPSC is to serve the public by ensuring safe, reliable, and accessible energy and telecommunications services at reasonable rates.

The MPSC is composed of three commissioners appointed by the Governor with the advice and consent of the Michigan State Senate. Commissioners serve staggered six-year terms. No more than two commissioners may represent the same political party. The Governor designates one commissioner as chair.

The current commissioners include: Chair Dan Scripps (appointed February 2019, named Chair July 2020, term expires July 2, 2029), Commissioner Katherine Peretick (appointed January 2021, reappointed July 2021, term expires July 2, 2027), and Commissioner Shaquila Myers (appointed July 21, 2025, term expires July 2, 2031).

Chair Scripps previously served in the Michigan House of Representatives and is the immediate past president of the Organization of MISO States. Commissioner Peretick has extensive background in energy storage and technology development, including work on NASA spacecraft missions. Commissioner Myers previously served as senior advisor to Governor Whitmer and chief of staff to former Speaker Joe Tate.

The MPSC's regulatory authority in Michigan includes:

Seven investor-owned electric utilities (DTE Electric, Consumers Energy, Upper Peninsula Power Company, Alpena Power, Indiana Michigan Power, Northern States Power-Wisconsin/Xcel Energy, and Upper Michigan Energy Resources Corporation), natural gas utilities (DTE Gas, Consumers Energy, SEMCO Energy, Michigan Gas Utilities), and telecommunications services.

The MPSC does not regulate retail rates for electric cooperatives (which are member-regulated per PA 167 of 2008) but retains jurisdiction over member-regulated cooperatives for safety, interconnection, code of conduct, and customer choice matters. The MPSC also does not regulate municipal utilities.

Agency: Michigan Public Service Commission (MPSC)
Address: 7109 W. Saginaw Highway, Lansing, MI 48917
Phone: (517) 284-8100 or 1-800-292-9555
Email: consumer.puc@state.mn.us
Website: www.michigan.gov/mpsc

Understanding Michigan's Regulatory Environment for 2026

The regulatory environment in Michigan is characterized by significant utility reliability challenges and ongoing transition to renewable energy. DTE Electric and Consumers Energy serve more than 80% of Michiganders and have been subject to major reliability audits ordered by the MPSC following widespread outages, including a catastrophic northern Michigan ice storm in March 2025.

In June 2025, the MPSC ordered reliability improvements based on findings from comprehensive audits of DTE and Consumers Energy. These orders require regular tree trimming, prioritization of equipment replacement based on actual condition rather than age, expansion of resources to address downed wires, and rigorous analysis of alternatives to meet reliability goals cost-effectively.

Michigan participates in the Midcontinent Independent System Operator (MISO) for most of the state, while a small southwestern portion served by Indiana Michigan Power is within PJM Interconnection. The state has an electric choice program capped at 10% of each utility's retail sales, primarily used by large commercial and industrial customers.

In January 2025, DTE Gas and DTE Electric received $8.81 billion in conditional commitments for loan guarantees through the US Department of Energy's Loan Programs Office to install renewable energy generation and storage. The MPSC has also been actively engaged in data center service terms, approving conditions between Consumers Energy and very large customers with protections for existing ratepayers.

Michigan HVAC Licensing Requirements for 2026

Michigan licenses HVAC professionals through the Department of Licensing and Regulatory Affairs (LARA), Bureau of Construction Codes, Mechanical Division. The state does not license technicians separately but issues Mechanical Contractor licenses in various classifications and specialties. The 2017 Skilled Trades Regulation Act consolidated regulations for five skilled trade industries including mechanical/HVACR to create uniform application, testing, and renewal processes.

There is one primary license type for HVAC work in Michigan:

Mechanical Contractor License: Required for installing, altering, or servicing HVAC equipment, ductwork, refrigeration, hydronic heating and cooling, process piping, fire suppression systems, and related work. Licensed contractors can fabricate, install, maintain, service, and repair these systems and secure permits for work.

Classifications Within the Mechanical Contractor License

Michigan offers 14 different licensing exam classifications within the mechanical contractor license. Applicants must apply for the license exam related to their specific work classification. Key classifications include:

HVAC Equipment: Allows installation of forced air heating and cooling systems, gas piping systems using natural gas, fuel oil, and propane, CSST installation, and exhaust systems. The HVAC Equipment exam is 150 questions with a 3-hour time limit.

Ductwork: Covers fabrication and installation of ductwork including flues, vents, registers, and air filters.

Refrigeration: Covers refrigeration system installation and service.

Hydronic Heating and Cooling: Covers hot water and steam heating systems.

Limited and Unlimited Heating/Refrigeration Service: Separate classifications for service work.

All other exams (except HVAC Equipment) are 55 questions with a 1-hour time limit.

Pathways to Michigan HVAC Licensure

To qualify for the Michigan Mechanical Contractor license, applicants must meet these requirements:

Experience Requirement: Minimum of 3 years or 6,000 hours of work experience in each classification sought. Experience must be documented with a statement signed under penalty of perjury from each contractor of record, including detailed description of work performed, BTU ratings, fuel types, refrigerant types, equipment types, and dates.

Education Credit: If applicant has completed a 2-year HVAC program from a recognized trade school, community college, or university, or a 2-year DOL-approved HVAC training program, up to 1 year or 2,000 hours may be credited toward the experience requirement.

Age: Must be at least 18 years old.

Education: High school diploma or GED equivalent.

Examination: Pass the applicable licensing exam with a minimum score of 70%. Exams are administered by PSI at five testing centers throughout the state, available six days per week. Exams may include questions from the Skilled Trades Regulation Act, the Stille-DeRossett-Hale Single State Construction Code, and the respective mechanical code.

Application Fee: $300 for initial license.

Adding Classifications: $300 in year one, $200 in year two, $100 in year three of the license cycle.

Exam Fee: $25 per exam.

Veterans: Per 2012 PA 312, veterans with honorable or general under honorable conditions discharge are exempt from initial licensing fees.

License Renewal and Continuing Education

Michigan mechanical contractor licenses are issued in three-year cycles, valid for the remainder of the current cycle. No continuing education is currently required for renewal. Licenses must be renewed before expiration to avoid lapse. If a license expires, the holder must cease HVAC work immediately. Working without a license can result in fines up to $5,000 or up to one year in jail.

Reciprocity Agreements

Michigan has limited or no reciprocity agreements with other states for mechanical contractor licenses. Out-of-state contractors must meet Michigan's experience and examination requirements.

Additional Requirements

EPA Section 608 Certification: Required for all technicians working with refrigerants containing ozone-depleting substances.

Boiler License: Michigan requires a special license for repairing or installing boilers, separate from the mechanical contractor license.

Business Requirements: Mechanical contractors must have general liability insurance and workers' compensation insurance if employing others. Business registration with the Michigan Secretary of State is required for corporations and LLCs.

Michigan Utility Directory for HVAC Contractors

HVAC contractors in Michigan work closely with utilities for rebate programs, energy efficiency initiatives, and service connections. Michigan is served by a mix of investor-owned utilities, electric cooperatives, and municipal utilities.

Investor-Owned Electric Utilities

Utility	Service Territory	Customers	Contact
DTE Electric Company	Southeast Michigan and Thumb region	~2.3 million	dteenergy.com | 800-477-4747
Consumers Energy	Lower Peninsula (except southeast)	~1.8 million electric	consumersenergy.com | 800-477-5050
Upper Peninsula Power Company (UPPCO)	10 counties in Upper Peninsula	~54,000	uppco.com | 800-562-7680
Indiana Michigan Power (AEP)	Southwest Michigan	Portion of state	indianamichiganpower.com | 800-311-4634
Alpena Power Company	Alpena area	~16,300	alpenapower.com | 989-354-3511
Northern States Power-Wisconsin (Xcel)	Small Upper Peninsula area	Limited	xcelenergy.com
Upper Michigan Energy Resources Corp	Upper Peninsula	Limited	Contact via MPSC

Natural Gas Utilities

Utility	Service Territory	Customers	Contact
DTE Gas Company	Lower Peninsula	~1.3 million	dteenergy.com | 800-477-4747
Consumers Energy	Lower Peninsula	~1.8 million gas	consumersenergy.com | 800-477-5050
SEMCO Energy Gas Company	Southern Lower Peninsula, Upper Peninsula	~300,000	semcoenergygas.com | 800-624-2019
Michigan Gas Utilities (MGU)	Southern and western Michigan	~174,000	Contact via MPSC

Electric Cooperatives

Michigan has 11 electric cooperatives serving approximately 300,000 members across 39,000 miles of line. Major cooperatives include:

Cooperative	Service Area	Contact
Great Lakes Energy Cooperative	Northern Lower Peninsula	gtlakes.com | 888-485-2537
Cherryland Electric Cooperative	Northwest Lower Peninsula	cherrylandelectric.coop | 231-486-9200
HomeWorks Tri-County Electric	Central Michigan	homeworks.org | 800-562-8232
Alger Delta Cooperative Electric	Upper Peninsula	algerdelta.com | 906-428-4141
Thumb Electric Cooperative	Thumb region	tecmi.coop | 989-658-8571
Midwest Energy Cooperative	Southwest Michigan	Contact via MECA
Presque Isle Electric & Gas	Northeast Lower Peninsula	Contact via MECA

Municipal Utilities

Michigan has 24 municipal electric systems not regulated by the MPSC, governed by local city councils or appointed commissions.

• What license do I need for HVAC work in Michigan?
  Michigan requires a Mechanical Contractor license issued by LARA's Bureau of Construction Codes for HVAC work. You must apply for specific classifications (such as HVAC Equipment, Ductwork, or Refrigeration) based on the type of work you perform.
• How long does it take to get an HVAC license in Michigan?
  It takes a minimum of 3 years to qualify, as you need 3 years or 6,000 hours of work experience in each classification. If you complete a 2-year HVAC program, up to 1 year may be credited toward this requirement.
• What is the passing score for Michigan mechanical exams?
  You must score at least 70% to pass any Michigan mechanical licensing exam. The HVAC Equipment exam has 150 questions with a 3-hour time limit; other classification exams have 55 questions with a 1-hour limit.
• Is there continuing education required for Michigan HVAC licenses?
  No. Michigan does not currently require continuing education for mechanical contractor license renewal. Licenses are issued for three-year cycles.
• Does Michigan have reciprocity with other states?
  Michigan has limited or no reciprocity agreements for mechanical contractor licenses. Out-of-state contractors must meet Michigan's experience requirements and pass the state exams.
• What happens if I work without a license in Michigan?
  Working without a mechanical contractor license when required can result in fines up to $5,000 or up to one year in jail. License verification is available through the LARA portal.
• Who regulates electric utilities in Michigan?
  The Michigan Public Service Commission (MPSC) regulates investor-owned electric and gas utilities. Electric cooperatives are member-regulated for rates but MPSC retains jurisdiction for safety and service quality.
• What are the major electric utilities in Michigan?
  DTE Electric (~2.3 million customers) and Consumers Energy (~1.8 million) serve most of Michigan's Lower Peninsula. UPPCO serves approximately 54,000 customers in the Upper Peninsula.
• Do I need EPA certification in Michigan?
  Yes. EPA Section 608 certification is federally required for anyone working with refrigerants. This is separate from your state mechanical contractor license.
• How do I verify a contractor's license in Michigan?
  Use LARA's online license verification lookup at michigan.gov/lara or contact the Bureau of Construction Codes at (517) 241-0199.

Resources for Michigan HVAC Contractors

LARA Bureau of Construction Codes: www.michigan.gov/lara/bureau-list/bcc

Mechanical Contractor Application: LARA Mechanical Licensing

PSI Exam Scheduling: www.psiexams.com | 855-579-4635

Michigan Public Service Commission: www.michigan.gov/mpsc

Michigan Electric Cooperative Association: www.meca.coop