Indiana enforces a single, uniform commercial building code statewide with no local opt-out. Local jurisdictions may enforce the state code but cannot adopt conflicting or more stringent rules.
Indianapolis adopts Indiana state building codes by reference with no local amendments. Commercial design and permitting requirements align fully with state standards.
Draft rules are under review to adopt the 2023 National Electrical Code as the Indiana Electrical Code, 2026 Edition, with the effective date to be determined, and to update the Indiana Building Code based on the 2024 International Building Code. These updates will impact electrical and building codes statewide.