Illinois · Fire code

The fire code in force in Illinois now.

NFPA 101 Life Safety Code (2015 edition) as adopted with state modifications in 41 Ill. Adm. Code 100 (Fire Prevention and Safety), effective Jan 1, 2020. Enforced by Office of the State Fire Marshal (Division of Fire Prevention and Building Safety); local fire officials enforce under OSFM direction or under their own equal-or-higher local codes; public schools (ISBE) and licensed health facilities (IDPH) are inspected by other agencies. Verified on the primary source, re-checked weekly.

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Fire code in Illinois

Verified on the source
In force

NFPA 101 Life Safety Code (2015 edition) as adopted with state modifications in 41 Ill. Adm. Code 100 (Fire Prevention and Safety), effective Jan 1, 2020

OSFM replaced NFPA 101 (2000) with the 2015 edition effective Jan 1, 2020; buildings built after that date are 'new' occupancies. Localities may enforce equal-or-stricter codes (Chicago, home-rule towns), which apply alongside the state rule.

Source: primary document

Who enforces it

Office of the State Fire Marshal (Division of Fire Prevention and Building Safety); local fire officials enforce under OSFM direction or under their own equal-or-higher local codes; public schools (ISBE) and licensed health facilities (IDPH) are inspected by other agencies

Statewide layer. County and city amendments sit on top; the building view resolves them from your ZIP.

What changes next

In force

In force; no proposed Part 100 amendment or newer NFPA 101 edition found among OSFM rulemaking documents (ILGA/JCAR site unreachable this run)

The federal layer

No federal fire code applies to a private building; OSHA's exit-route, fire-extinguisher and emergency-plan rules (29 CFR 1910 Subparts E and L) apply to every employer alongside the state fire code.

Dated items

Next 24 months
Jan 13, 2027
104th Illinois General Assembly adjourns sine die; 105th General Assembly convenes (second Wednesday of January) - watch for building, fire, elevator and lodging bills and the fall-2026 veto session outcomesIllinois General Assembly
Dated

Questions about the fire code in Illinois

Which fire code applies in Illinois today?

NFPA 101 Life Safety Code (2015 edition) as adopted with state modifications in 41 Ill. Adm. Code 100 (Fire Prevention and Safety), effective Jan 1, 2020. OSFM replaced NFPA 101 (2000) with the 2015 edition effective Jan 1, 2020; buildings built after that date are 'new' occupancies. Localities may enforce equal-or-stricter codes (Chicago, home-rule towns), which apply alongside the state rule.

Who enforces the fire code in Illinois?

Office of the State Fire Marshal (Division of Fire Prevention and Building Safety); local fire officials enforce under OSFM direction or under their own equal-or-higher local codes; public schools (ISBE) and licensed health facilities (IDPH) are inspected by other agencies.

What changes next for the fire code in Illinois?

Nothing is scheduled. The rule above stays in force until the state adopts a newer edition or amends the program; AHJ Radar re-checks the source weekly.

Other areas in Illinois

Everything in force in Illinois

Priced per building. Your whole team is included.

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