Who enforces each one, what edition applies, and what changes next. 8 of 8 state-level topic areas checked against primary sources. OSHA state plan: Michigan Occupational Safety and Health Administration (MIOSHA), Department of Labor and Economic Opportunity.
| Area | In force | Authority | Next |
|---|---|---|---|
| Fire | NFPA 1 Uniform Fire Code, 2006 edition (selected chapters) with Michigan amendments - Fire Prevention Code rules R 29.1651-29.1700b (2011 AACS)Adopted in R 29.1652 with Michigan amendments; covers assembly, commercial, industrial and residential (not 1-2 family) occupancies, references NFPA 101 (2006), and yields where a city, village or township adopts a nationally recognized fire code. SourceChecked on the source | LARA Bureau of Fire Services (State Fire Marshal) under 1941 PA 207; BFS Field Services inspects state-regulated occupancies (schools, dormitories, health care, assembly, penal); local fire departments enforce local fire codes and may receive delegated state authority (MCL 29.2b) | In forceR 29.1652 re-read Oct 21, 2026 on the state rule text: still adopts NFPA 1, 2006 ed. (history 2011 AACS); no fire-code rule set appears on BCC's currently-open rules page |
| Building | 2021 Michigan Building Code (2021 IBC incl. appendices F, G, H, with Michigan amendments, R 408.30401 et seq.) and 2021 Michigan Rehabilitation Code for existing buildings, both effective Apr 9, 2025Single state construction code under 1972 PA 230 applies statewide. Companion codes: 2021 Mechanical and Plumbing codes and 2023 NEC effective Mar 12, 2024; 2021 Commercial Energy Code effective Apr 22, 2025. BCC lists the 2015 Residential Code as current (2021 update stayed by a Jul 7, 2025 court order). SourceChecked on the source | Local enforcing agencies (cities, villages, townships, or counties that assume responsibility by ordinance); LARA Bureau of Construction Codes enforces where no local unit does (MCL 125.1508b) | Rulemaking pendingBCC code-books page re-read Oct 27, 2026: 2021 Michigan Building and Rehabilitation Codes effective Apr 9, 2025. Currently-open page: 2025-48 LR (Part 4 Building, Rehabilitation, Part 10a Commercial Energy) still shows only the May 21, 2026 advisory meeting; Plumbing and Mechanical hearings held Aug 5, 2026 (2024 IPC/IMC proposed), no filing date posted; rules take effect 120 days after filing |
| Elevators | Michigan Elevator Code, R 408.7001-408.8695 (eff. Jun 27, 2023): ASME A17.1-2016, A17.2-2017, A17.3-2017, A17.6-2017, A18.1-2017, A90.1-2009Rule text (read Oct 18, 2026): periodic inspection at least every 12 months for most elevators and every 24 months for some devices such as lifts; power elevators maintained at least every 90 days (some devices every 180 days) by a licensed journeyperson. Existing units follow the older-installation rule. SourceChecked on the source | LARA Bureau of Construction Codes, Elevator Section (state inspection; annual certificate of operation) with the Elevator Safety Board under 1967 PA 227; cities, villages or townships with comparable elevator ordinances are exempt (MCL 408.805) | Rulemaking pendingBCC code-books page re-read Oct 27, 2026: Elevator Code (A17.1-2016, A18.1-2017, A90.1-2009) effective Jun 27, 2023; draft 2025-54 LR is not listed on BCC's currently-open page, so its stage is unknown. Elevator Section notice: Certificate of Operation fee must be paid with permit fees from Feb 1, 2026 |
| Boilers | Skilled Trades Regulation Act (2016 PA 407) boiler provisions + Boiler Code effective May 3, 2023: ASME BPVC 2019, B31.1-2018, CSD-1-2018, 2019 NBICCertificate inspections: power, process and high-temperature water boilers annually, plus an external inspection under pressure; low-pressure steam/vapor heating boilers every 2 years; hot-water heating and supply boilers every 3 years (MCL 339.5943). SourceChecked on the source | LARA Bureau of Construction Codes, Boiler Section (chief and deputy state inspectors or special inspectors) | In forceBCC code-books page re-read Oct 27, 2026: Boiler Code (ASME BPVC 2019, B31.1-2018, CSD-1-2018, 2019 NBIC) effective May 3, 2023. HB 4907 (2025), letting class 5B installer and class IV repairer licensees test boiler controls and safety devices, passed the House 56-48 on Feb 4, 2026 and was referred to Senate Labor on Feb 11, 2026 (bill page read Oct 19, 2026); not enacted |
| Pools | Public Health Code Part 125 (MCL 333.12521-12534) + Public Swimming Pools rules R 325.2111-325.2199 (rule history shows last amendment 2001 AACS)Covers pools and spas at hotels, motels, apartments, clubs and resorts (pools serving 4 or fewer units exempt); construction permit and license required. 2022 PA 99 (eff. Jun 14, 2022) allows in-pool food/drink service under added conditions. Rules call for daily water testing and at least quarterly coliform sampling (R 325.2194-2195). SourceChecked on the source | EGLE Drinking Water and Environmental Health Division (construction permits, licenses); local health departments inspect, and a current approved local inspection report is required before a license is released | Rulemaking pendingEGLE pool program page re-read Oct 27, 2026 lists no proposed rule changes or deadlines; pool rule text shows 2001 AACS as the latest history |
| Lodging | Hotels, Inns, and Public Lodging Houses act (1913 PA 188, MCL 427.1-427.15); fire-safety section 427.3 as amended by 1988 PA 344Each hotel needs extinguishers in hazardous areas, a smoke detector in every sleeping room, corridor smoke detectors (exempt with a full sprinkler system), elevator fire-warning signs, an evacuation plan posted in each room, numbered stairwell doors, a manual fire alarm with automatic audible occupant notification, and staff fire drills at hire and every 12 months. SourceChecked on the source | No active state enforcer identified: the act's hotel inspectors are named by a commission whose section (MCL 427.8) was repealed in 2000, and LARA Bureau of Fire Services Field Services does not list hotels among the buildings it inspects | In forceMCL 427.3 re-read Oct 21, 2026 (last amended 1988 PA 344, eff. Oct 26, 1989), no change. SB 481 (2025), requiring hotels and motels to post the human-trafficking hotline notice, passed the Senate 34-1 on Apr 22, 2026 and was referred to House Regulatory Reform (bill page read Oct 19, 2026); not enacted |
| Workplace | MIOSHA State Plan covering private-sector and state/local government employersInitially approved Oct 3, 1973; administered by the Department of Labor and Economic Opportunity. Federal employers, maritime work, USPS contract operations, tribal enterprises on reservations and in-flight aircraft cabin crews stay under federal OSHA. MIOSHA Standards page: Hazard Communication Parts 42, 92 and 430 updated eff. Aug 12, 2025; ADM Part 11 recordkeeping eff. Mar 23, 2026. SourceChecked on the source | Michigan Department of Labor and Economic Opportunity - MIOSHA; federal OSHA for excluded employers | In forceosha.gov Michigan State Plan page re-read Oct 21, 2026: plan covers private-sector and state/local government employers (last plan amendment Jan 23, 2017); MIOSHA's latest listed updates (Part 11, Mar 23, 2026; CS Part 25 Concrete, Jun 22, 2026) in force |
| Environmental | Michigan layer: UST registration with LARA Bureau of Fire Services Storage Tank Division (NREPA Part 211, Michigan UST Rules; new tanks also meet Flammable and Combustible Liquids rules); EGLE air permit-to-install exemptions R 336.1282 (gas-fired equipment up to 50 MMBtu/hr, No. 1-2 oil up to 20) and R 336.1285(2)(g) (engines under 10 MMBtu/hr); EGLE AQD delegated asbestos NESHAP notices via MiEnviro; sewage discharge notice under MCL 324.3112a; cross-connection programs under Safe Drinking Water Act rules Part 14; plus federal SPCC (40 CFR 112), Tier II (40 CFR 370), HFC leak repair (40 CFR 84), engine NESHAP (40 CFR 63 ZZZZ) and 40 CFR 280UST owners register each tank, carry financial responsibility and report releases to the Storage Tank Division. Permit-exempt boilers and generators still face federal NSPS/NESHAP (R 336.1278(4)). Asbestos notices and fees go to EGLE AQD via MiEnviro. Sewage discharges: notify EGLE, local health department and a daily newspaper within 24 hours, written report after. Water supplies run backflow-tester programs. SourceChecked on the source | LARA Bureau of Fire Services Storage Tank Division (USTs); EGLE Air Quality Division (permit exemptions, asbestos NESHAP); EGLE Water Resources Division (sewage discharge reporting, MCL 324.3112a); EGLE Drinking Water and Environmental Health Division through community water supplies (cross connection); U.S. EPA (federal rules) | In forceLARA UST page re-read Oct 27, 2026 (Part 211 / MUSTR registration; filings through the Accela portal); no Michigan rule date announced (R 336.1285 last amended eff. Jan 2, 2019; MCL 324.3112a last amended 2004). Federal: HFC leak-repair rule in force since Jan 1, 2026; automatic leak detection for existing 1,500 lb+ commercial refrigeration by Jan 1, 2027 (eCFR 84.108 re-read Oct 21, 2026); next Tier II filing March 1, 2027 |
NFPA 1 Uniform Fire Code, 2006 edition (selected chapters) with Michigan amendments - Fire Prevention Code rules R 29.1651-29.1700b (2011 AACS). Adopted in R 29.1652 with Michigan amendments; covers assembly, commercial, industrial and residential (not 1-2 family) occupancies, references NFPA 101 (2006), and yields where a city, village or township adopts a nationally recognized fire code. Enforced by: LARA Bureau of Fire Services (State Fire Marshal) under 1941 PA 207; BFS Field Services inspects state-regulated occupancies (schools, dormitories, health care, assembly, penal); local fire departments enforce local fire codes and may receive delegated state authority (MCL 29.2b).
2021 Michigan Building Code (2021 IBC incl. appendices F, G, H, with Michigan amendments, R 408.30401 et seq.) and 2021 Michigan Rehabilitation Code for existing buildings, both effective Apr 9, 2025. Single state construction code under 1972 PA 230 applies statewide. Companion codes: 2021 Mechanical and Plumbing codes and 2023 NEC effective Mar 12, 2024; 2021 Commercial Energy Code effective Apr 22, 2025. BCC lists the 2015 Residential Code as current (2021 update stayed by a Jul 7, 2025 court order). Enforced by: Local enforcing agencies (cities, villages, townships, or counties that assume responsibility by ordinance); LARA Bureau of Construction Codes enforces where no local unit does (MCL 125.1508b).
Elevators: LARA Bureau of Construction Codes, Elevator Section (state inspection; annual certificate of operation) with the Elevator Safety Board under 1967 PA 227; cities, villages or townships with comparable elevator ordinances are exempt (MCL 408.805) (Michigan Elevator Code, R 408.7001-408.8695 (eff. Jun 27, 2023): ASME A17.1-2016, A17.2-2017, A17.3-2017, A17.6-2017, A18.1-2017, A90.1-2009). Boilers: LARA Bureau of Construction Codes, Boiler Section (chief and deputy state inspectors or special inspectors) (Skilled Trades Regulation Act (2016 PA 407) boiler provisions + Boiler Code effective May 3, 2023: ASME BPVC 2019, B31.1-2018, CSD-1-2018, 2019 NBIC).
Michigan runs an OSHA-approved state plan: Michigan Occupational Safety and Health Administration (MIOSHA), Department of Labor and Economic Opportunity. The state agency enforces workplace safety rules for most private employers.
Building: Rulemaking pending (BCC code-books page re-read Oct 27, 2026: 2021 Michigan Building and Rehabilitation Codes effective Apr 9, 2025. Currently-open page: 2025-48 LR (Part 4 Buildin); Elevators: Rulemaking pending (BCC code-books page re-read Oct 27, 2026: Elevator Code (A17.1-2016, A18.1-2017, A90.1-2009) effective Jun 27, 2023; draft 2025-54 LR is not listed on BCC's cur); Pools: Rulemaking pending (EGLE pool program page re-read Oct 27, 2026 lists no proposed rule changes or deadlines; pool rule text shows 2001 AACS as the latest history); Jan 1, 2027: Automatic leak detection on existing 1,500 lb+ HFC commercial refrigeration; Jan 13, 2027: Michigan Legislature convenes its 2027 regular session (second Wednesday of January); only odd-year business carries over, so pending 2025-26 bills such as SB 481 (hotel human-trafficking hotline posting; passed Senate Apr 22, 2026, in House committee) and HB 4907 (boiler control testing by installer/repairer licensees; passed House Feb 4, 2026, in Senate Labor) die if not enacted before the 2026 session ends.
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