The Indiana Fire Code sets enforceable rules for how buildings are constructed, protected, inspected, and evacuated, and it applies to nearly every commercial, institutional, and residential property in the state. The current operative version is the 2014 Indiana Fire Code at 675 IAC 22-2.5, which adopts the 2012 International Fire Code and layers Indiana-specific amendments on top.1Indiana Department of Homeland Security. Rules of the Indiana Fire Prevention and Building Safety Commission The Division of Fire and Building Safety within the Indiana Department of Homeland Security handles enforcement, and violations can carry civil penalties of up to $250 per day for each ongoing problem, with criminal exposure when negligence contributes to injury or death.
Which Edition Is in Force
Indiana does not write its fire code from scratch. It adopts model codes from the International Code Council and the National Fire Protection Association, then amends them. Alongside the 2012 IFC, the state adopts NFPA standards by reference for specific systems: NFPA 13 for sprinklers, NFPA 72 for fire alarms, and NFPA 14 for standpipes, among others.2Indiana General Assembly. Title 675 Fire Prevention and Building Safety Commission Article 28 – National Fire Protection Association Standards
The practical point for owners, architects, and contractors: design and compliance track the currently adopted edition, not the newest model code published by the ICC. Newer editions become enforceable in Indiana only after formal rulemaking.
Occupancy Classification Drives the Rules
Every building gets an occupancy classification based on how it is used, and that classification determines almost every other fire safety requirement, from exit widths to whether sprinklers are mandatory. Indiana aligns its groups with the International Building Code.3International Code Council. Indiana
- Assembly (Group A): theaters, banquet halls, and large gathering spaces, with strict suppression and evacuation requirements because of high occupant density.
- Institutional (Group I): hospitals, nursing homes, and detention facilities, where many occupants cannot self-evacuate and defend-in-place strategies apply.
- Educational (Group E): schools and daycare centers, with evacuation-focused design and drill protocols.
- High-Hazard (Group H): facilities storing or processing flammable, explosive, or toxic materials, requiring specialized ventilation, explosion control, and containment.
- Mercantile (Group M): retail with significant combustible loads, typically requiring automatic sprinklers and smoke control.
When a building’s use changes, its classification changes with it, and the fire protection requirements follow. Converting an office (Group B) into a restaurant (Group A-2) can trigger new suppression, exit, and capacity requirements. The Division of Fire and Building Safety reviews plans and inspects buildings to confirm that the classification on file matches the actual use.
Construction and Egress
The code controls how fire spreads inside a building and how people get out. Type I and Type II construction must use noncombustible primary structural materials. Many building types require fire-rated walls, floors, and ceilings to compartmentalize flames and smoke. Any penetration of a rated wall by ducts, pipes, or wiring must be sealed with fire doors, dampers, or firestop systems that preserve the wall’s rating. Taller and larger buildings often need fireproofing on structural steel, applied as spray-on materials or intumescent coatings.
Exit counts and widths depend on square footage and design occupant load. Exits must be marked, unobstructed, and equipped with signs and emergency lighting that come on automatically during a power failure. Multi-story buildings need enclosed stairwells built to a fire-resistance rating, and exit doors must swing in the direction of travel.4Cornell Law School. 675 IAC 22-2.5-10 – Chapter 9 Fire Protection Systems
Required Fire Protection Systems
Automatic Sprinklers
Indiana adopts NFPA 13 for sprinkler design and installation.2Indiana General Assembly. Title 675 Fire Prevention and Building Safety Commission Article 28 – National Fire Protection Association Standards Whether a building needs a sprinkler system depends on its occupancy, height, and floor area. High-rises, larger assembly spaces, and institutional occupancies with immobile residents are common triggers. Residential buildings of four stories or fewer follow NFPA 13R, which is scaled for smaller residential occupancies.
Maintenance is not optional. Expect monthly checks on pressure gauges and control valves, quarterly inspections of waterflow alarms and fire department connections, and annual inspections of sprinkler heads, pipe fittings, hangers, and the main drain. Where municipal water pressure is insufficient, a fire pump is required, and that pump must be tested annually.
Fire Alarms
Alarm systems follow NFPA 72.2Indiana General Assembly. Title 675 Fire Prevention and Building Safety Commission Article 28 – National Fire Protection Association Standards A compliant system typically includes smoke detectors, manual pull stations, and both audible and visual notification devices. Hotels, dormitories, and other buildings with sleeping accommodations must have interconnected smoke alarms so that activation in one unit alerts the whole floor or building. Large assembly occupancies need voice evacuation systems that can deliver clear instructions. All systems must be monitored continuously.
Standpipes
Standpipes give firefighters water on the upper floors of a building without dragging hose from the street. Under NFPA 14, Class I standpipes are generally required in buildings with more than three stories above or below grade and in large, hard-to-access spaces such as shopping malls.5National Fire Protection Association. Standpipe System Design and Calculations Fire department connections must be marked and accessible at all times.
Portable Fire Extinguishers
When an employer provides portable extinguishers, federal OSHA rules apply alongside the Indiana code. For ordinary combustibles (Class A), no employee can be more than 75 feet from an extinguisher; for flammable liquid hazards (Class B), the maximum travel distance is 50 feet.6Occupational Safety and Health Administration. 1910.157 – Portable Fire Extinguishers Extinguishers must be inspected, maintained, and tested at the intervals set by NFPA 10, and employers who provide them must train employees on their use at least once a year.
Smoke and Carbon Monoxide Alarms in Dwellings
Indiana law requires at least one working smoke detector in every dwelling. Detectors must be installed outside each sleeping area and on every story, including basements. They mount on the ceiling or on a wall no more than 12 inches below the ceiling. In split-level homes, the lower level needs its own detector only if it is a full story below the upper level or separated by a door.7Indiana General Assembly. Indiana Code 22-11-18-3.5 – Dwellings Installation of Smoke Detectors
Carbon monoxide alarms are required in dwellings that contain a fuel-burning appliance or that have an attached garage with an opening into the living space. Alterations or additions requiring a building permit also trigger the requirement. The alarms must comply with UL 2034, and combination smoke and CO units must meet both UL 2034 and UL 217.8Indiana Department of Homeland Security. Carbon Monoxide Alarm Requirement
Hazardous Material Storage
Businesses that store or handle hazardous materials operate under the Indiana Fire Prevention Code, which incorporates NFPA 30 for flammable and combustible liquids and NFPA 400 for other hazardous materials.9Cornell Law School. 675 IAC 22-1 – Indiana Fire Prevention Code Facilities handling large quantities must obtain permits from the Indiana Department of Homeland Security.
Requirements depend on flashpoint, volatility, and reactivity. Flammable liquids such as gasoline and acetone must be kept in approved safety containers or underground tanks. Aboveground tanks holding Class I flammable liquids must meet UL 2085 and require secondary containment.10Indiana Fire Prevention and Building Safety Commission. Interpretation of 675 IAC 22-2.4-23 Section 2206.2.3 Facilities storing more than 660 gallons of flammable liquids must implement spill prevention and fire suppression measures. Hazardous gases such as propane require ventilated enclosures with explosion-proof electrical systems.
Emergency Action Plans and Training
Federal OSHA rules require any employer whose employees evacuate during a fire to keep a written emergency action plan. Workplaces with 10 or fewer employees can communicate the plan orally. The plan must cover how to report a fire, which evacuation routes to use, how to account for everyone after evacuation, and who employees should contact with questions.11GovInfo. 29 CFR 1910.38 – Emergency Action Plans
Employers who provide portable extinguishers must train employees on their use at hire and at least once a year after. Employees designated to fight fires under the emergency plan need hands-on training with the specific equipment they are expected to use.6Occupational Safety and Health Administration. 1910.157 – Portable Fire Extinguishers
Inspections and Recordkeeping
The Indiana State Fire Marshal’s office has statutory authority to inspect buildings for compliance.12Indiana General Assembly. Indiana Code 22-11-17-5 – Inspections to Determine Compliance Municipal fire departments and certified inspectors also carry out routine and complaint-driven inspections. Hospitals, schools, and industrial facilities are inspected more frequently.
During an inspection, officials verify that fire protection systems are operational, exits are unobstructed and marked, hazardous materials are stored correctly, and records are current. Written notices identify each deficiency and set a correction deadline. Minor issues get short windows; immediate dangers, such as a nonfunctioning sprinkler system or exposed wiring, can trigger stop-work orders or temporary closures on the spot. Re-inspection follows, and failure to correct leads to escalating enforcement.
Paperwork itself is enforceable. Under NFPA 25, as-built drawings, hydraulic calculations, acceptance test records, and manufacturer data sheets for sprinkler systems must be retained for the life of the system. Routine inspection, testing, and maintenance records must be kept for one year after the next scheduled inspection of the same type, whether that cycle is monthly, quarterly, or every five years. Missing records is itself a violation.
Variances When Compliance Isn’t Feasible
When strict compliance with a provision is impractical, an owner can apply for a variance. Either the Indiana Department of Homeland Security or the Fire Prevention and Building Safety Commission may grant one.13Indiana General Assembly. Indiana Code 22-13-2-11 – Variances The applicant pays a fee and must show two things: that strict compliance would impose an undue hardship or would prevent preserving an architecturally or historically significant building, and that the proposed alternative will not endanger public health, safety, or welfare.14Indiana Department of Homeland Security. DHS Variances
Requests are typically reviewed in public hearings. The Commission looks at occupancy, existing fire protection systems, and whether the proposed compensatory measures genuinely offset the risk. Denials can be appealed administratively or in state court.
Penalties for Noncompliance
Civil penalties can reach $250 for each day a violation continues. The Division of Fire and Building Safety issues an initial $250 penalty per uncorrected violation, then an additional $250 per violation for each 30-day period the problem persists. Intentional misconduct or fraud by a responsible person triggers the $250 penalty immediately, with no prior opportunity to correct.15Cornell Law School. 675 IAC 12-3-16 – Civil Penalties Repeated failures can lead to permit revocation or facility closure.
Criminal charges become a real possibility when negligence contributes to a fire that injures or kills someone. Fire officials can refer cases to the county prosecutor or to the Indiana Attorney General’s office. Charges are filed under Indiana’s general criminal statutes, and reckless conduct resulting in death can carry significant prison time.