Residential Projects
- Building - Residential / 2015 Michigan Residential Code (effective February 8, 2016)
- Building, Electrical, Mechanical, and Plumbing Codes can be found in the "2015 Michigan Residential Code." Washtenaw County also enforces Appendix F - Radon Control Methods (PDF).
- Electrical - Residential / 2015 Michigan Residential Code (effective February 8, 2016)
- Mechanical - Residential / 2015 Michigan Residential Code (effective February 8, 2016)
- Plumbing - Residential / 2015 Michigan Residential Code (effective February 8, 2016)
Commercial Projects
- Building - Commercial / 2015 Michigan Building Code (effective April 20, 2017)
- Electrical - Commercial / 2017 Michigan Electrical Code (2017 NEC with State Part 8) (Effective January 4, 2019)
- Mechanical - Commercial / 2015 Michigan Mechanical Code (effective April 20, 2017)
- Plumbing - Commercial / 2018 Michigan Plumbing Code (September 15, 2021)
Note: All commercial projects must comply with barrier-free requirements set forth in ICC/ANSI 117.1 1998.
Resources
Code books are available from:
See Helpful Links to other agencies.