State Fire Codes and Occupancy Limits: A 50-State Guide for Venues and Businesses

There is no single federal fire code in the United States. Each state adopts a model code framework — almost always the International Fire Code (IFC) or NFPA 1 — and then layers state amendments on top. Local jurisdictions then layer their own amendments on top of that. The practical result is that the same 2,000 sq ft restaurant in Phoenix and Portland operates under noticeably different rules even though both cities began with the same model code. I see the seam between those layers every week — usually when an owner is surprised that their architect's occupancy calculation does not match the placard the local fire marshal hangs on the wall.

The calculation is the same in shape, even where the numbers differ. The fire marshal takes the usable floor area, applies the occupant load factor that matches the use of the space, and produces an occupant load. They then verify that the building's exits — counted, measured, and arranged according to the code — can clear that many people in the time the code allows. The lower of those two numbers is what gets posted.

For a state-by-state walkthrough of code editions, enforcement practices, and the offices you actually call, the NOWAITN Compliance & Regulations Knowledge Center and the US Fire Code Standards: A Complete Guide are good starting points before you call your local AHJ.

Roughly forty-two states adopt the IFC (paired with the IBC for the occupant-load tables). The minority — most New England states plus a handful of others — sit with NFPA 1 and NFPA 101. A few states are hybrids: the IBC handles building construction, NFPA 101 handles life-safety and egress.

For an owner the day-to-day numbers come out close. The serious differences live in retrofit sprinkler thresholds, emergency-lighting specifics, and the documentation each family expects in a fire-safety plan. The owner's job is the same in either: know the posted limit, do not exceed it, and keep the exit infrastructure — doors, corridors, stairways, emergency lighting, fire alarms — in the condition the limit was calculated against.

The occupancy limit for a space is calculated by dividing the net usable floor area by the relevant occupant load factor. The occupant load factor depends on the use of the space and is specified in the building code — either IBC Table 1004.5 or NFPA 101 Table 7.3.1.2. The most common factors for business and venue owners are: Assembly with fixed seats — one person per seat; Assembly standing space — five square feet net per person; Assembly with tables and chairs — fifteen square feet net per person; Assembly unconcentrated (tables and chairs, not fixed) — fifteen square feet net per person; Business areas (offices) — 100 square feet gross per person; Mercantile (retail, ground floor) — 30 square feet gross per person; Kitchen and food preparation — 200 square feet gross per person; Storage — 300 square feet gross per person. "Net" area means the actual usable floor area after subtracting walls, columns, fixtures, bars, stages, and other permanent obstructions. "Gross" area means the total floor area measured to the exterior walls. To illustrate: a restaurant with a 1,500-square-foot dining room (net, with tables and chairs), a 400-square-foot bar area (net, standing), and a 500-square-foot kitchen (gross) would calculate as follows: dining room 1,500 divided by 15 equals 100 persons, bar 400 divided by 5 equals 80 persons, kitchen 500 divided by 200 equals 2.5 (rounded to 3 persons). The total occupant load is 183 persons. The fire marshal then verifies that the building has sufficient exit capacity — measured in total exit width — to evacuate 183 people. If the exits are insufficient, the occupancy limit is reduced to match exit capacity. The lower of the two numbers — the occupant load or the exit capacity — becomes the posted maximum occupancy.

A posted limit means nothing without a current count. Fire marshals know this and they do count heads. They show up unannounced when a venue is open, count everyone inside — staff, performers, vendors, not just paying customers — and compare against the placard.

When the count exceeds the placard, expect a citation, an order to reduce occupancy on the spot, and in many jurisdictions personal liability for the manager on duty. Penalty schedules vary by state but typically include fines from a few hundred to several thousand dollars per violation per day, mandatory closure until the building is re-inspected, increased inspection frequency afterwards, and — the cost most owners never see coming — insurance carriers using the violation as grounds to non-renew at the next anniversary. Repeat violations or any incident involving injury escalate quickly. The fastest way to stay clear of any of this is the unglamorous one: count.

Once you know the posted occupancy and the rough rhythm of your peak hours, the rest is mechanical. Someone at the door — usually a manager, hostess, or door staff — counts entries and exits, and the running net number gets compared to the placard. For places that need to do this regularly, anything that produces a visible running count works. A pad and pen is fine. A handheld mechanical counter is fine. A web-based counter on the front-desk tablet is fine — Digital Tally Counter has a free people counter that runs in any browser if you want a no-account option, but the tool you use matters less than the discipline of using one.

What is not fine — and what most owners default to — is estimating by eye, filling the room, and pretending the placard is decorative. Fire marshals know that posture on sight. So does the insurance carrier, after the fact.

Alabama adopts the International Fire Code (IFC) with state amendments through the Alabama Building Commission. The state fire marshal office operates under the Alabama Department of Insurance. Local jurisdictions may adopt additional requirements. Municipalities with populations over 5,000 are required to enforce the state building code, while smaller communities may opt in. Contact: Alabama State Fire Marshal, (334) 241-4166. Code lookup: codes.alabama.gov.

Alaska adopts the International Fire Code and International Building Code through the Department of Public Safety, Division of Fire and Life Safety. Alaska's fire marshal office has jurisdiction statewide, including unincorporated areas. The state enforces occupancy limits for all assembly occupancies (50 or more persons) and all educational, institutional, and high-hazard occupancies. Contact: Alaska State Fire Marshal, (907) 269-5491. Code lookup: dps.alaska.gov/fls.

Arizona adopts the International Fire Code with state amendments through the Arizona Department of Forestry and Fire Management, Office of the State Fire Marshal. Arizona is a strong home-rule state, meaning cities and counties may adopt more restrictive fire codes than the state minimum. Major cities like Phoenix, Tucson, and Scottsdale have their own fire prevention bureaus that handle occupancy inspections and permitting. Contact: Arizona State Fire Marshal, (602) 364-1003. Code lookup: dffm.az.gov.

Arkansas does not have a mandatory statewide fire code for all building types. The state fire marshal, under the Arkansas Department of Insurance, enforces fire safety in state-owned buildings, schools, and certain occupancies. Many local jurisdictions adopt the IFC or NFPA 1 independently. Restaurant and venue owners should check with their local fire department or building authority for applicable occupancy requirements. Contact: Arkansas State Fire Marshal, (501) 683-6382.

California adopts the California Fire Code (CFC), which is based on the International Fire Code with extensive state amendments published as Title 24, Part 9 of the California Code of Regulations. California's fire code is among the most stringent in the nation, with specific requirements for high-rise buildings, entertainment venues, cannabis facilities, and wildland-urban interface areas. The Office of the State Fire Marshal (OSFM) operates under Cal Fire. Local fire authorities (city and county fire departments) conduct occupancy inspections and may adopt local amendments. Contact: California Office of State Fire Marshal, (916) 568-3800. Code lookup: osfm.fire.ca.gov.

Colorado adopts the International Fire Code with state amendments through the Division of Fire Prevention and Control (DFPC) under the Department of Public Safety. Colorado does not have a mandatory statewide building code — local jurisdictions adopt building codes independently — but the state fire code applies statewide. Fire marshals in larger cities (Denver, Colorado Springs, Boulder) maintain their own fire prevention bureaus. Contact: Colorado Division of Fire Prevention and Control, (720) 852-6600. Code lookup: dfpc.state.co.us.

Connecticut adopts the State Fire Safety Code, which incorporates NFPA 1 Fire Code and NFPA 101 Life Safety Code. Connecticut is one of the minority of states that follows the NFPA code family rather than the IFC/IBC family. The Office of the State Fire Marshal operates under the Department of Administrative Services. Local fire marshals, required in every municipality, conduct occupancy inspections. Contact: Connecticut State Fire Marshal, (860) 713-5990. Code lookup: portal.ct.gov/das/Office-of-State-Fire-Marshal.

Delaware adopts the International Fire Code and International Building Code through the Office of the State Fire Marshal under the Department of Safety and Homeland Security. Delaware's fire marshal office has broad authority and conducts plan review, permitting, and occupancy inspections for commercial buildings statewide. Contact: Delaware State Fire Marshal, (302) 739-5665. Code lookup: statefiremarshal.delaware.gov.

Florida adopts the Florida Fire Prevention Code, which is based on NFPA 1 Fire Code with the Florida-specific amendments compiled by the Florida State Fire Marshal. Florida also adopts the Florida Building Code (based on the IBC) for building construction and occupancy calculations. The Bureau of Fire Prevention operates under the Division of State Fire Marshal within the Department of Financial Services. Local fire officials conduct inspections, but the state code sets the minimum standard. Contact: Florida State Fire Marshal, (850) 413-3600. Code lookup: myfloridacfo.com/division/sfm.

Georgia adopts the International Fire Code with state amendments through the Georgia Safety Fire Commissioner, which operates as an independent state office. Georgia requires annual fire safety inspections for assembly occupancies, hotels, schools, and hospitals. Local fire departments may conduct inspections on behalf of the state. Contact: Georgia Safety Fire Commissioner, (404) 656-2064. Code lookup: oci.georgia.gov/fire-safety.

Hawaii adopts the International Fire Code and International Building Code with state amendments. The State Fire Council coordinates fire prevention standards, but enforcement is handled by the four county fire departments (Honolulu, Maui, Hawaii County, and Kauai). Occupancy inspections for commercial properties are conducted by the county fire prevention bureaus. Contact: State Fire Council, (808) 587-3580. Code lookup: hawaii.gov/labor/sfcc.

Idaho adopts the International Fire Code with state amendments through the Idaho Division of Building Safety, State Fire Marshal office. Idaho enforces the state fire code in jurisdictions that do not have their own fire prevention program. Larger cities like Boise maintain their own fire prevention bureaus. Contact: Idaho State Fire Marshal, (208) 334-3950. Code lookup: dbs.idaho.gov.

Illinois adopts the International Fire Code with state amendments through the Office of the State Fire Marshal (OSFM). Illinois has specific additional requirements for assembly venues with occupancy over 100 persons, including mandatory annual inspections. Chicago maintains its own fire code (the Municipal Code of Chicago, Title 15) which differs significantly from the state code. Contact: Illinois State Fire Marshal, (217) 785-0969. Code lookup: sfm.illinois.gov.

Indiana adopts the Indiana Fire Prevention Code, based on the International Fire Code with state amendments, through the Indiana Department of Homeland Security, Division of Fire Prevention and Building Safety. Indiana requires fire safety inspections for all assembly occupancies. Contact: Indiana State Fire Marshal, (317) 232-2222. Code lookup: in.gov/dhs/fire-prevention-and-building-safety.

Iowa adopts the International Fire Code with state amendments through the State Fire Marshal Division under the Department of Public Safety. Iowa requires annual fire inspections for assembly occupancies including restaurants, bars, theaters, and event venues. Contact: Iowa State Fire Marshal, (515) 725-6145. Code lookup: dps.iowa.gov/divisions/state-fire-marshal.

Kansas adopts the International Fire Code and International Building Code through the Office of the State Fire Marshal under the Kansas Insurance Department. Kansas fire code enforcement is shared between the state fire marshal and local fire departments. Contact: Kansas State Fire Marshal, (785) 296-3401. Code lookup: firemarshal.ks.gov.

Kentucky adopts the Kentucky Building Code (based on IBC) and the Kentucky Fire Prevention Code (based on IFC) through the Department of Housing, Buildings and Construction. The State Fire Marshal operates under the same department. Kentucky requires fire safety inspections for all assembly, educational, and institutional occupancies. Contact: Kentucky State Fire Marshal, (502) 573-0382. Code lookup: dhbc.ky.gov.

Louisiana adopts the International Fire Code with state amendments through the Office of the State Fire Marshal under the Louisiana Department of Public Safety. Louisiana has specific requirements for entertainment venues in New Orleans and Baton Rouge, reflecting the state's unique hospitality culture. Contact: Louisiana State Fire Marshal, (225) 925-4911. Code lookup: lasfm.org.

Maine adopts NFPA 101 Life Safety Code and NFPA 1 Fire Code through the State Fire Marshal Office under the Department of Public Safety. Maine is one of the states that follows the NFPA code family. The state fire marshal has jurisdiction statewide and conducts inspections in communities without local fire inspectors. Contact: Maine State Fire Marshal, (207) 626-3880. Code lookup: maine.gov/dps/fmo.

Maryland adopts the International Fire Code with state amendments through the Office of the State Fire Marshal under the Department of State Police. Maryland requires fire safety inspections for all places of assembly. Baltimore City maintains its own fire code enforcement separate from the state. Contact: Maryland State Fire Marshal, (410) 653-8980. Code lookup: mdsp.maryland.gov/firemarshal.

Massachusetts adopts the Massachusetts Comprehensive Fire Safety Code (527 CMR), which incorporates NFPA 1 with extensive state amendments. Massachusetts also follows NFPA 101 Life Safety Code for building egress and occupancy. The Department of Fire Services and the Office of the State Fire Marshal enforce the code. Massachusetts has some of the most stringent assembly occupancy requirements in the country, particularly following the Station nightclub fire in neighboring Rhode Island (2003). Contact: Massachusetts State Fire Marshal, (978) 567-3100. Code lookup: mass.gov/state-fire-marshal.

Michigan adopts the International Fire Code with state amendments through the Bureau of Fire Services under the Department of Licensing and Regulatory Affairs (LARA). Michigan requires annual fire safety inspections for assembly occupancies with capacity over 50 persons. Contact: Michigan State Fire Marshal, (517) 241-8847. Code lookup: michigan.gov/lara/bureau-list/bfs.

Minnesota adopts the Minnesota State Fire Code, based on the International Fire Code with state amendments, through the State Fire Marshal Division under the Department of Public Safety. Minnesota has specific additional requirements for assembly occupancies in cold-weather conditions, including emergency heating provisions. Contact: Minnesota State Fire Marshal, (651) 201-7200. Code lookup: sfm.dps.mn.gov.

Mississippi adopts the International Fire Code through the State Fire Marshal Office under the Mississippi Insurance Department. Mississippi enforcement varies significantly by jurisdiction — larger cities like Jackson maintain fire prevention bureaus while rural areas rely on the state fire marshal. Contact: Mississippi State Fire Marshal, (601) 359-1061. Code lookup: mid.ms.gov/fire-marshal.

Missouri adopts the International Fire Code with state amendments through the Division of Fire Safety under the Department of Public Safety. Missouri does not have a mandatory statewide building code, but the fire code applies statewide. Fire safety inspections for assembly occupancies are conducted by local fire departments or the state fire marshal in unincorporated areas. Contact: Missouri State Fire Marshal, (573) 751-2930. Code lookup: dfs.dps.mo.gov.

Montana adopts the International Fire Code through the Fire Prevention and Investigation Bureau under the Department of Justice. Montana's state fire marshal has jurisdiction statewide, with local fire departments conducting inspections in incorporated areas. Contact: Montana State Fire Marshal, (406) 444-2050. Code lookup: dojmt.gov/enforcement/fire-prevention-investigation/

Nebraska adopts the International Fire Code with state amendments through the State Fire Marshal Agency, an independent state agency. Nebraska requires fire safety inspections for all buildings open to the public. Contact: Nebraska State Fire Marshal, (402) 471-2027. Code lookup: sfm.nebraska.gov.

Nevada adopts the International Fire Code with state amendments through the State Fire Marshal Division under the Department of Public Safety. Nevada has specific additional requirements for casino gaming floors, entertainment venues, and convention facilities, reflecting the unique occupancy challenges of the Las Vegas and Reno hospitality corridors. Clark County (Las Vegas) maintains its own fire prevention bureau with requirements that often exceed the state minimum. Contact: Nevada State Fire Marshal, (775) 684-7500. Code lookup: fire.nv.gov.

New Hampshire adopts NFPA 101 Life Safety Code and NFPA 1 Fire Code through the State Fire Marshal Office under the Department of Safety. New Hampshire follows the NFPA code family. The state fire marshal conducts inspections in communities without local fire prevention programs. Contact: New Hampshire State Fire Marshal, (603) 223-4289. Code lookup: nh.gov/safety/divisions/firesafety.

New Jersey adopts the Uniform Fire Code of New Jersey (NJAC 5:70), developed by the NJ Division of Fire Safety, which incorporates elements of both the IFC and NFPA codes with extensive state-specific amendments. The Division of Fire Safety operates under the Department of Community Affairs. New Jersey requires registered fire prevention bureaus in every municipality. Assembly occupancies require annual inspections and a Certificate of Fire Code Status. Contact: New Jersey Division of Fire Safety, (609) 633-6106. Code lookup: nj.gov/dca/divisions/dfs.

New Mexico adopts the International Fire Code with state amendments through the Fire Marshal Office under the Regulation and Licensing Department. New Mexico enforces fire safety standards statewide, with local fire departments conducting inspections in incorporated areas. Contact: New Mexico State Fire Marshal, (505) 476-0600. Code lookup: rld.nm.gov/fire-marshal.

New York adopts the Fire Code of New York State, based on the International Fire Code with extensive state amendments, through the Division of Building Standards and Codes under the Department of State. New York City maintains its own entirely separate fire code (NYC Fire Code, Title 29 of the NYC Administrative Code) and building code, enforced by FDNY. Outside NYC, local code enforcement offices conduct inspections under state oversight. Assembly occupancies require a Place of Assembly Certificate of Operation (PACO) in NYC or equivalent permitting upstate. Contact: New York Division of Building Standards and Codes, (518) 474-4073. NYC: FDNY Bureau of Fire Prevention, 311. Code lookup: dos.ny.gov/building-standards-and-codes.

North Carolina adopts the North Carolina State Building Code, Volume V: Fire Prevention Code, based on the International Fire Code with state amendments. The Office of the State Fire Marshal operates under the Department of Insurance. North Carolina requires periodic fire safety inspections for all assembly and institutional occupancies. Contact: North Carolina State Fire Marshal, (919) 647-0000. Code lookup: ncdoi.gov/osfm.

North Dakota adopts the International Fire Code through the Office of the State Fire Marshal under the Office of Attorney General. North Dakota enforces fire safety standards statewide. Contact: North Dakota State Fire Marshal, (701) 328-5555. Code lookup: nd.gov/ndfmo.

Ohio adopts the Ohio Fire Code, based on the International Fire Code with state amendments, through the Division of the State Fire Marshal under the Department of Commerce. Ohio's fire marshal office is one of the largest in the country and conducts inspections for assembly, mercantile, industrial, and storage occupancies statewide. Contact: Ohio State Fire Marshal, (614) 752-8200. Code lookup: com.ohio.gov/fire.

Oklahoma adopts the International Fire Code with state amendments through the Office of the State Fire Marshal under the Oklahoma Insurance Department. Oklahoma enforcement is shared between state and local fire officials. Contact: Oklahoma State Fire Marshal, (405) 522-5005. Code lookup: oid.ok.gov/fire-marshal.

Oregon adopts the Oregon Fire Code, based on the International Fire Code with state amendments, through the Office of State Fire Marshal under the Oregon State Police. Oregon has specific additional requirements for timber-frame construction and wildland-urban interface areas. Local fire districts conduct inspections in their jurisdictions. Contact: Oregon State Fire Marshal, (503) 934-8200. Code lookup: oregon.gov/osp/programs/sfm.

Pennsylvania adopts the International Fire Code with state amendments through the State Fire Commissioner under the Office of the State Fire Commissioner (OSFC). Pennsylvania requires Uniform Construction Code (UCC) compliance for all commercial buildings. Local municipalities enforce the code through certified building code officials. Contact: Pennsylvania State Fire Commissioner, (717) 651-2200. Code lookup: osfc.pa.gov.

Rhode Island adopts the State Fire Code, incorporating NFPA 1 and NFPA 101, with state amendments through the State Fire Marshal under the Department of Public Safety. Following the 2003 Station nightclub fire in West Warwick — which killed 100 people and was caused in part by overcrowding and inadequate exits — Rhode Island enacted some of the most rigorous assembly occupancy requirements in the nation, including mandatory sprinkler retrofits and enhanced fire inspection programs for nightclubs and assembly venues. Contact: Rhode Island State Fire Marshal, (401) 462-4200. Code lookup: fire-marshal.ri.gov.

South Carolina adopts the International Fire Code with state amendments through the Office of State Fire Marshal under the Department of Labor, Licensing and Regulation. South Carolina requires fire safety inspections for assembly occupancies and maintains a statewide fire incident reporting system. Contact: South Carolina State Fire Marshal, (803) 896-9800. Code lookup: llr.sc.gov/fire.

South Dakota adopts the International Fire Code through the State Fire Marshal Office under the Department of Public Safety. South Dakota's fire marshal office has statewide authority and provides fire investigation, inspection, and code enforcement services. Contact: South Dakota State Fire Marshal, (605) 773-3562. Code lookup: dps.sd.gov/emergency-services/state-fire-marshal.

Tennessee adopts the International Fire Code with state amendments through the State Fire Marshal Office under the Department of Commerce and Insurance. Tennessee requires fire safety inspections for all commercial assembly occupancies and maintains specific requirements for music and entertainment venues, reflecting the state's significant live music industry in Nashville and Memphis. Contact: Tennessee State Fire Marshal, (615) 741-2981. Code lookup: tn.gov/commerce/fire-prevention.

Texas adopts the International Fire Code with state amendments through the State Fire Marshal Office under the Texas Department of Insurance. Texas is a strong local-control state, and many major cities (Houston, Dallas, San Antonio, Austin) maintain their own fire codes that may exceed state minimums. Notably, Houston does not have traditional zoning, which means fire code compliance is particularly important as the primary regulatory control on building occupancy. Contact: Texas State Fire Marshal, (512) 676-6800. Code lookup: tdi.texas.gov/fire.

Utah adopts the International Fire Code with state amendments through the State Fire Marshal Office under the Department of Public Safety. Utah requires fire safety inspections for all assembly, educational, and institutional occupancies. Contact: Utah State Fire Marshal, (801) 284-6350. Code lookup: firemarshal.utah.gov.

Vermont adopts the Vermont Fire and Building Safety Code, incorporating NFPA 101 Life Safety Code with state amendments, through the Division of Fire Safety under the Department of Public Safety. Vermont follows the NFPA code family. The state conducts fire safety inspections for all public buildings. Contact: Vermont Division of Fire Safety, (802) 479-7561. Code lookup: firesafety.vermont.gov.

Virginia adopts the Virginia Statewide Fire Prevention Code, based on the International Fire Code with state amendments, through the State Fire Marshal Office under the Department of Fire Programs. Virginia requires annual fire inspections for assembly occupancies and specific enhanced requirements for college and university buildings. Contact: Virginia State Fire Marshal, (804) 249-1970. Code lookup: vafire.com.

Washington adopts the International Fire Code with state amendments through the State Fire Marshal Office under the Washington State Patrol. Washington's fire code applies statewide, with local fire authorities conducting inspections. Washington has specific additional requirements for venues in seismic zones. Contact: Washington State Fire Marshal, (360) 596-3929. Code lookup: wsp.wa.gov/state-fire-marshals-office.

West Virginia adopts the International Fire Code with state amendments through the State Fire Marshal Office under the State Fire Commission. West Virginia requires fire safety inspections for all commercial and assembly buildings. Contact: West Virginia State Fire Marshal, (304) 558-2191. Code lookup: firemarshal.wv.gov.

Wisconsin adopts the International Fire Code with state amendments through the Division of Industry Services under the Department of Safety and Professional Services. Wisconsin maintains specific requirements for taverns and entertainment venues, reflecting the state's hospitality industry. Contact: Wisconsin State Fire Prevention, (608) 266-8741. Code lookup: dsps.wi.gov/Pages/Programs/IndustryServices.

Wyoming adopts the International Fire Code with state amendments through the State Fire Marshal Office under the Department of Fire Prevention and Electrical Safety. Wyoming's fire marshal office provides inspection services statewide. Contact: Wyoming State Fire Marshal, (307) 777-7288. Code lookup: wsfm.wyo.gov.

Every state listed above sets a baseline. The office that actually controls your placard is your local one — city, county, or fire district. The state office is the right first call. Tell them your address and your business type and they will name the authority having jurisdiction. That AHJ runs the calculation, posts the placard, performs the inspection, and writes the citation if it comes to that.

Once the placard is up, the work is just discipline: keep a count, keep the exits clear, and keep the documentation the AHJ asked for in your fire-safety plan where you can find it. For state-specific code editions, amendment histories, and penalty structures, the NOWAITN Compliance Knowledge Center is a good supplement to the state-by-state directory above.