Who enforces each one, what edition applies, and what changes next. 6 of 9 state-level topic areas checked against primary sources. Federal OSHA state.
| Area | In force | Authority | Next |
|---|---|---|---|
| Fire | 2024 IFC (Mississippi Fire Prevention Code)SFMO adopted the 2024 IFC and IBC as of July 1, 2024. Rules for the Mississippi Fire Prevention Code (Title 19, Pt. 7, Ch. 7), effective Jan. 1, 2025, apply to state-owned buildings, public assembly (unless a local code is as strict), buildings over 75 ft, and certain later-permitted buildings; sprinklers required in new 75-ft+ buildings. SourceChecked on the source | State Fire Marshal (MS Insurance Dept.); enforced with county/municipal fire officials | In forceIn force: 2024 IFC since July 1, 2024 (SFMO page re-read Oct 18, 2026, no newer edition or proposed rule listed); MFPC rules effective Jan 1, 2025 |
| Building | 2024 IBC (adopted with the state fire code)Adopted effective July 1, 2024 under the same Fire Marshal program as the fire code. Scope: state-owned buildings, public-assembly buildings unless a local code is equally strict, and tall buildings (75 ft). Localities set most other construction codes; confirm with the local building department. SourceChecked on the source | State Fire Marshal (statewide, limited scope); municipalities/counties for other construction | In forceIn force since 7/1/2024 |
| Elevators | ASME A17.1-2025 adopted with a Mississippi variance by MID Bulletin 2026-10, effective Oct 5, 2026; units are otherwise inspected under the A17.1 edition in effect at installation plus Mississippi requirementsBulletin 2026-10 (Oct 5, 2026) adopts A17.1-2025. Its variance bars remote alterations: software, parameter or programming changes require a licensee physically on site who verifies safe, code-compliant operation. Annual inspection by a licensed inspector who is not the maintenance provider; Annual Operating Certificate per unit; licensed mechanics and contractors. SourceChecked on the source | MS Insurance Dept. - State Fire Marshal, Conveyance Safety Act Division | In forceA17.1-2025 and no-remote-alteration variance in force since Oct 5, 2026 (Bulletin 2026-10 re-read Oct 18, 2026) |
| Boilers | ASME Boiler & Pressure Vessel Code (edition year not stated in rule text)Power boilers get a certificate inspection annually plus an annual external inspection under pressure; heating boilers and most pressure vessels are inspected biennially; a two-month grace period applies. Construction must meet the ASME Code (edition not stated); new installations must meet the current CSD-1 edition where it applies. SourceReported, in verification | MS State Dept. of Health, Boiler & Pressure Vessel Safety Division | In forceOngoing per-unit annual/biennial cycle; no statewide date. The Division program page read Nov 10, 2026 shows no proposed rule or new date; the rule text is checked on the Secretary of State's Mississippi Administrative Code copy (Title 15, Part 10, Subpart 76), read Nov 10, 2026 |
| Pools | No state pool or spa rule or permit: MSDH states it does not regulate swimming pools and spas and that no permits are requiredMSDH's guidance sheet says the department does not regulate swimming pools and spas and no permits are required; its disinfectant, pH and safety guidelines are recommendations only. County or city ordinances were not checked. SourceReported, in verification | MS State Dept. of Health, Office of Environmental Health (voluntary guidelines only; no permits or state pool inspections) | In forceIn force; MSDH Pool and Swimming Guidelines page read Nov 10, 2026 lists only voluntary sanitation guidelines and a model code link; no state permit shown |
| Lodging | MSDH Regulations Governing Sanitation of Hotels and Motels (Miss. Code Ann. 41-49-1 to 41-49-9), for places offering sleeping rooms for pay with four or more transient roomsRules cover potable water with backflow protection, sewage to public sewer or approved onsite system, linens, heating to 68 F in occupied rooms, ventilation, toilets, pests and refuse. Rule 4.9.1 requires compliance with the NFPA Life Safety Code for exits and fire safety. No general hotel permit appears in the text; food service needs its own permit. SourceReported, in verification | MS State Dept. of Health (hotel/motel sanitation); local fire officials and State Fire Marshal for fire code where it applies | In forceIn force; Mississippi Administrative Code copy published by the Secretary of State (Title 15, Part 14, Subpart 70, Ch. 4, header dated Nov 11, 2011) read Nov 9, 2026: rules 4.3.1 (four or more transient rooms), 4.4.3 (68 F heating) and 4.9.1 (NFPA Life Safety Code) unchanged; MSDH lists the regulation as effective January 2012 |
| Workplace | Federal OSHA (no State Plan)OSHA's State Plans page does not list Mississippi, so federal OSHA covers private-sector employers. Coverage of state and local government employees should be confirmed with federal OSHA or the Mississippi state agency. SourceChecked on the source | Federal OSHA (U.S. Dept. of Labor); no state agency | In forceIn force; osha.gov approved State Plans page re-read Oct 21, 2026 does not list Mississippi |
| Retrofit | Trigger-based sprinkler mandate only for tall buildings; no radio-coverage or recertification law foundUnder the state Fire Prevention Code, existing buildings 75 ft or taller must be fully sprinklered when 25% or more of floor space is rebuilt or added to. No statewide emergency-responder radio-coverage or periodic structural recertification law was found. SourceChecked on the source | State Fire Marshal (Miss. Code Sec. 45-11-101 et seq.) | In forceIn force (trigger-based, ongoing) |
| Environmental | MDEQ layer: UST registration (11 Miss. Admin. Code Pt. 5, Ch. 2, amended Oct 5, 2018), air permit exclusions (Pt. 2, Ch. 2, Rule 2.13, amended Feb 22, 2024), asbestos 10-working-day notice (Pt. 2, Ch. 1, Rule 1.8); federal SPCC, Tier II, HFC, RICE and asbestos NESHAP also applyUST owners register within 30 days of use, status or ownership change; installation notice 30 days before. Gas/LPG units under 10 MMBtu/hr each (25 total) and distillate units under 10 MMBtu/hr are excluded from construction permits; no emergency-generator exclusion found. Asbestos notice 10 working days ahead (160 sq ft/260 ln ft). Sewer-overflow, grease, backflow not confirmed. SourceChecked on the source | Mississippi Dept. of Environmental Quality (state); U.S. EPA (federal); local utilities | Rulemaking pendingMDEQ air permit regulation (Pt. 2, Ch. 2, last amended Feb 22, 2024) and UST regulations page re-read Oct 19, 2026, no proposed change listed. 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 |
What our record said before and after each change, with the date and the official source. A change to the record is not by itself a change in the law: an edition, a date or a source may have been corrected or made more precise. Confirm the current text with the authority.
2024 IFC (Mississippi Fire Prevention Code). SFMO adopted the 2024 IFC and IBC as of July 1, 2024. Rules for the Mississippi Fire Prevention Code (Title 19, Pt. 7, Ch. 7), effective Jan. 1, 2025, apply to state-owned buildings, public assembly (unless a local code is as strict), buildings over 75 ft, and certain later-permitted buildings; sprinklers required in new 75-ft+ buildings. Enforced by: State Fire Marshal (MS Insurance Dept.); enforced with county/municipal fire officials.
2024 IBC (adopted with the state fire code). Adopted effective July 1, 2024 under the same Fire Marshal program as the fire code. Scope: state-owned buildings, public-assembly buildings unless a local code is equally strict, and tall buildings (75 ft). Localities set most other construction codes; confirm with the local building department. Enforced by: State Fire Marshal (statewide, limited scope); municipalities/counties for other construction.
Elevators: MS Insurance Dept. - State Fire Marshal, Conveyance Safety Act Division (ASME A17.1-2025 adopted with a Mississippi variance by MID Bulletin 2026-10, effective Oct 5, 2026; units are otherwise inspected under the A17.1 edition in effect at installation plus Mississippi requirements). Boilers: MS State Dept. of Health, Boiler & Pressure Vessel Safety Division (ASME Boiler & Pressure Vessel Code (edition year not stated in rule text)).
Mississippi is a federal-OSHA state: the U.S. Department of Labor's OSHA enforces workplace safety rules directly.
Environmental: Rulemaking pending (MDEQ air permit regulation (Pt. 2, Ch. 2, last amended Feb 22, 2024) and UST regulations page re-read Oct 19, 2026, no proposed change listed. Federal: HFC leak); Jan 1, 2027: Automatic leak detection on existing 1,500 lb+ HFC commercial refrigeration; Mar 1, 2027: EPCRA Tier II chemical inventory filing.
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