Alabama
Alabama Building Commission
334-242-4082
https://dcm.alabama.gov/bldg_code.aspx#BChttp://bc.alabama.gov
For Energy Codes, the AL Dept. of Economic and Community Affairs (ADECA) and the Alabama Energy and Residential Codes Board: http://adeca.alabama.gov/Divisions/energy/energycodes/Pages/default.aspx
Adopted I-Codes:
Applicability (statewide, local, limited): LIMITED
Plan review, inspection, and enforcement of the building code (commercial) is limited to state-owned and state-funded buildings, all public and certain private schools, hotel/motels, and movie theaters. Commercial Energy and Accessibility codes apply to additional buildings, mandatory statewide. The combined residential and residential energy code is enforced at the local level only, but is mandatory statewide.
State inspectors exist for projects under the jurisdiction of the state.
Mass Timber Adoption
The mass timber provisions went into effect in 2022.
Notes:
Even though the base code is the 2015 IECC, the residential R-value and U-factor tables were modified to reflect the 2009 IECC. U-factors are set at 0.084 for climate zones 2-3, slightly higher than factors for climate zones 2-3 in the 2009 IRC. In addition, specifications for the standard reference in the performance approach permit the standard reference design to be the proposed system complying with minimum federal standards.
Page last updated: March 2026