Regulatory framework
The code baseline for Marquette County.
Marquette County lists the 2015 Michigan Residential Code, 2015 Michigan Energy Code, 2021 Michigan Commercial Energy Code (effective April 22, 2025), 2021 Michigan Building Code (effective April 9, 2025), 2021 Michigan Plumbing Code, 2021 Michigan Mechanical Code, 2023 National Electrical Code/NFPA 70, ICC A117.1-2009, and 2021 Michigan Rehabilitation Code. As of March 9, 2026, plumbing and mechanical administration is handled by the State of Michigan rather than the county.