Louisiana enforces a single, uniform building code statewide for all projects, including commercial. Local jurisdictions may handle enforcement but cannot amend, opt out, or adopt independent building codes.
New Orleans adopts the 2021 International Codes with both technical and administrative amendments addressing local conditions. Key amendments impact flood elevation, administrative processes, and cross-references to local provisions for commercial projects.
Louisiana will allow local governments to adopt the International Fire Code as part of its Uniform Fire Prevention Code starting July 1, 2026, with New Orleans already using the 2021 version. Fire Marshal directives will require the 2021 International Existing Building Code for permits issued on or after January 1, 2026, impacting fire and building codes statewide.