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State Profile

Code Type: Commercial Residential
Current State Code 2015 IECC and ASHRAE 90.1.2013 2015 IECC with Amendments
Effective Date
Adoption Date
State Amendments Yes Yes
State Code Analysis*
Enforcement Mandatory Statewide Mandatory Statewide
Can use COM/REScheck Yes Yes


Commercial Residential
Current Model Code ASHRAE Standard 90.1-2013 2012 IECC
No No
Previous Model Code
ASHRAE Standard 90.1-2010
ASHRAE Standard 90.1-2007
Previous Model Code
2009 IECC

Model Code Savings Potential

Statewide Savings Potential (2010-2030) Residential Commercial
Cost $1.61B $1.14B
Energy (primary) 143MBtu 117MBtu

Consumer Cost Savings

Consumer Cost Savings Residential
per Home
per 1,000 ft2
Annual ($) $577 $165
Annual (%) 22.8%
Life-cycle (30 year) $8562 $2880
Simple Payback 3.1 years 0.0 years
Positive Cash Flow 0.4 years


Code Type: Residential Commercial
Field Study Yes No
Training Program No No

Additional Information



    Prior to June 22, 1977, the state of Michigan had no building energy efficiency requirements. As of that date, the state adopted ASHRAE/IES Standard 90-1975 statewide. On July 27, 1985, the state adopted ANSI/ASHRAE/IES Standard 90A-1980 statewide.

    SB 719, signed in early January 1996, repealed the 1995 adoption of the 1993 MEC. The legislation directed the state construction code commission to, by April 1, 1997, provided cost-effective standards and establish a program to provide home buyers with energy rating information. A 10-member ad hoc committee was established to assist with these efforts.

    The Michigan Uniform Energy Code Part 10 Rules were adopted March 31, 1999. In 2002, the Department of Labor & Economic Growth (DLEG) established a committee to review and update Michigan's Uniform Energy Code. After review and promulgation of the code, the Ingham County Circuit Court issued an injunction to halt the February 28, 2005, effective date of the rules in response to a lawsuit by the Michigan Association of Home Builders (MAHB). The new code has since been pending litigation for the last three and a half years.

    On October 24, 2008, the judge presiding over the litigation dismissed the MAHB complaint and dissolved the lawsuit, making the rules effective immediately. Therefore, every unit of government enforcing the single state construction code must apply the 2003 Michigan Uniform Energy Code to newly issued permits. The 2003 MUEC is based on the 2003 International Residential Code (IRC) with references to the 2004 IECC supplement.

    State-Owned/Funded Buildings

    All state-funded new construction and major renovation projects over $1,000,000 must be built in accordance with LEED guidelines. Executive Order #2005-4

    Adoption Process

    The state energy code is evaluated for revisions or modifications every three years. The new code requirements are adopted at the beginning of each state building code cycle (which corresponds with the three-year cycle of the Building Officials and Code Administrators [BOCA] International, National Building Code [NBC]).

    Enforcement Process

    The local code official is designated to enforce the state energy requirements. Enforcement is completed through plan review and inspections. The Bureau of Construction Codes, Department of Consumer and Industry Services, interprets the code and enforces it in those jurisdictions in which the Bureau has enforcement responsibilities.

    Compliance Process

    Compliance is determined by plan review and inspection by the local code official or state building official.