Overview of Idaho Fire Code
Idaho's fire code is administered by the State Fire Marshal, who operates under the Idaho Department of Insurance (IDOI). Idaho adopts the International Fire Code (IFC) as its statewide fire prevention standard through Idaho Administrative Code (IDAPA 18.01.50).
The State Fire Marshal's Office oversees fire code enforcement statewide, with authority to conduct inspections, review plans, and investigate fires. Local fire departments in Idaho's cities and counties may also conduct fire inspections and enforce fire codes locally.
Idaho has been one of the fastest-growing states by population, with the Boise-Nampa metropolitan area (Treasure Valley) seeing substantial commercial and residential development. This growth increases demand for fire prevention inspections, plan reviews, and occupancy compliance.
Idaho also faces significant wildland-urban interface (WUI) fire risk, particularly in the mountainous regions and areas near national forests. Wildfire smoke events and WUI development create unique fire safety requirements.
Adopted Codes and Enforcement
Adopted Codes:
- International Fire Code (IFC) — adopted statewide via IDAPA 18.01.50
- International Building Code (IBC) — referenced for construction requirements
- NFPA standards (13, 72, 96, 25) — incorporated by reference through IFC
State Fire Marshal Responsibilities:
- Statewide fire code adoption and enforcement
- Fire safety inspections of commercial, assembly, and public occupancies
- Fire investigation and arson enforcement
- Review and approval of fire protection system plans
- Fireworks regulation
Local Authority: Local fire departments in Boise, Meridian, Nampa, Idaho Falls, and other cities maintain their own fire prevention bureaus for local enforcement.
Violations: Violations of Idaho fire code can result in civil penalties and orders to correct. Continued noncompliance can lead to condemnation of the building or occupancy.
Occupancy and Key Requirements
Idaho follows IBC occupancy load calculations per IFC adoption.
Occupancy Load Factors: Standard IBC factors apply — 15 net sq ft for dining, 7 net sq ft for standing assembly.
Posting: Maximum occupancy must be posted in assembly occupancies.
Fire Suppression: NFPA 13 sprinkler requirements per IFC thresholds. NFPA 96 commercial kitchen hood and duct systems required for all commercial cooking operations.
Fire Alarms: NFPA 72 fire alarm requirements per IFC thresholds. Assembly occupancies and buildings with required sprinkler systems must have monitored fire alarm systems.
WUI Fire Safety: Idaho communities in wildland-urban interface zones may have additional requirements for defensible space, fire-resistant construction, and vegetation management.
Emergency Egress: Standard IBC egress requirements. Exits clearly marked and illuminated. Emergency lighting required in all required egress paths.
Boise-Specific: The Boise Fire Department maintains active fire prevention programs with plan review, inspections, and code compliance assistance.
NOWAITN helps Idaho businesses manage fire code compliance through occupancy tracking, certification management, and compliance documentation.
Idaho-Specific Resources
Idaho State Fire Marshal Idaho Department of Insurance 700 W. State Street, 3rd Floor Boise, ID 83720 Phone: (208) 334-4370 https://doi.idaho.gov/sfm/
Key Local Fire Authorities:
- Boise Fire Department — Fire Prevention: (208) 570-6500
- Meridian Fire Department: (208) 888-1234
- Idaho Falls Fire Department: (208) 612-8470
- Nampa Fire Department: (208) 468-5600
Idaho Administrative Code: IDAPA 18.01.50 — Adoption of the International Fire Code