Louisiana residential energy code

Louisiana residential energy code (2021 IECC with state amendments)

As of 2026-10-22. DOE's Building Energy Codes Program (energycodes.gov) lags state adoption, so where a state's own rule was read it governs and DOE's differing figure is noted. Residential means one- and two-family dwellings and townhouses. Local amendments can apply; check the code body before relying on a section.

Key features

Code in force: 2021 IECC with state amendments
In force since: 2023-07-01
Adoption: Statewide code, enforced by local governments
DOE lists the 2018 IECC (same 2023-07-01 date); the state-authored code table says the 2021 IECC.
A notice of intent for the 2024 I-Codes is pending and not in force.
Verified against the state's own adopted rule or code-body page.

Governing body

State of Louisiana

Region

Applies to

General contracting HVAC Insulation Electrical Windows & doors

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