Alabama Building Code: Which Editions Are Adopted

Direct answer

No single statewide building code; 2015 residential and energy codes set by the Alabama Energy and Residential Codes Board, and the 2021 IBC for state-regulated buildings in Alabama. 2015 IRC and 2015 IECC with Alabama amendments from the Energy and Residential Codes Board, the 2021 IBC adopted by the Division of Construction Management for state-regulated buildings, and the 2021 IFC adopted by the State Fire Marshal. Record the permit application date with it: a code change normally applies from an effective date, and an application filed before that date is usually reviewed under the previous edition. This was checked on 2026-10-01 against Alabama Energy and Residential Codes Board (Alabama Department of Economic and Community Affairs), which is the source that controls. The cross-state comparison further down this page comes from the ICC adoption chart dated January 2024, so where the two disagree the record above is the newer one.

Content and cited inputs reviewed by Harth team · Published 2026-09-07 · Updated 2026-10-01.

Which codes has Alabama adopted now?

No single statewide building code; 2015 residential and energy codes set by the Alabama Energy and Residential Codes Board, and the 2021 IBC for state-regulated buildings.

2015 IRC and 2015 IECC with Alabama amendments from the Energy and Residential Codes Board, the 2021 IBC adopted by the Division of Construction Management for state-regulated buildings, and the 2021 IFC adopted by the State Fire Marshal.

Local adoption: Cities and counties adopt and enforce their own building codes. The Energy and Residential Codes Board's residential building code fills the gap for jurisdictions that had not adopted a residential code, while its energy codes are a statewide minimum enforced locally. The Division of Construction Management's State Building Code covers state buildings, schools and other building types the state regulates directly.

Checked 2026-10-01 against Alabama Energy and Residential Codes Board (Alabama Department of Economic and Community Affairs). Confirm the edition and effective date for the specific permit jurisdiction before relying on it.

The cross-state record

For comparison across states, every I-Code the ICC Master I-Code Adoption Chart (January 2024) tracks, as it records Alabama. Where this disagrees with the record above, the record above is newer:

Alabama has a recorded edition year for 9 of the 17 codes: 2021 for the building, fire, mechanical, plumbing, fuel gas and existing buildings codes; 2015 for the residential, residential energy and commercial energy codes. The private sewage, property maintenance, swimming pool and spa, performance, wildland-urban interface and zoning codes appear as adopted by individual state or local agencies rather than as a statewide standard, so whether they apply depends on the permit jurisdiction for the project address. No adoption at all is recorded for the green construction and green building standard codes.

Source: ICC Master I-Code Adoption Chart (January 2024).

How Alabama compares with its neighbours

Statewide editions in force, checked 2026-10-01; “Local” means no state adoption, “(limited)” a state adoption for some buildings only, and * a state-titled code built on that edition.

Georgia, Mississippi and Florida differ from Alabama on the building code alone. A practice working across that border is working to two editions, whatever the office standard says.

Where Alabama sits in the national record

Alabama is one of 17 jurisdictions with no statewide IBC edition in force. Adoption runs through local programmes or applies only to a subset of buildings, so there is no single answer for the state and the permit jurisdiction for the address decides.

Across all 17 codes the January 2024 ICC chart tracks, Alabama has a recorded edition for 9, which ranked it 12th of 51. A low count is not a gap in regulation — it usually means the state legislates through its own documents, or leaves the discipline to local adoption.

What the chart does and does not tell you

The chart's own legend matters more than the numbers:

• An edition year means one or more state or local agencies adopted that edition. It does not mean every building in the state is designed to it.
• “Some jurisdictions only” is the chart's X: the code is in use somewhere in the state but is not the standard for all buildings.
• “Not adopted” is a blank cell — no state or local jurisdiction reported adopting that code.
• “State-written code” means the state publishes its own document in place of the model edition, so the model text is a reference, not the law.

ICC states plainly that not every jurisdiction notifies it of an adoption, and this chart is dated January 2024. Treat it as the starting point for a search, never as the answer.

How to confirm the edition that governs a Alabama project

1. Open Alabama Energy and Residential Codes Board (Alabama Department of Economic and Community Affairs) and find the currently adopted code list with its effective date.
2. Check whether the permit authority for the project address is the state or a local programme with its own adoption.
3. Read the state amendments alongside the model edition — an amended table or definition changes the requirement even when the edition matches.
4. Record the permit application date. A code change usually applies from an effective date, and applications filed before it are normally reviewed under the previous edition.
5. Get the answer in writing from the authority having jurisdiction before it drives a design decision.

This site also hosts a transcription of the 2009 model code chapters as adopted in Alabama at /building-codes/us-states/alabama. That is a historical reference for the 2009 editions and is not Alabama's current code basis.

Alabama code-basis worksheet

Fill this in once per project and keep it with the drawing set. Every row is a question a plan reviewer can ask, and the answer changes with the address and the application date, not with the state.

This worksheet records a determination; it does not make one. The authority having jurisdiction decides which edition and which amendments apply.

Where can you explore related guidance?

• Explore all code adoption guidance
• Georgia Building Code: Which Editions Are Adopted
• Mississippi Building Code: Which Editions Are Adopted
• Tennessee Building Code: Which Editions Are Adopted
• Florida Building Code: Which Editions Are Adopted

Sources and method

Adopted editions transcribed from the ICC Master I-Code Adoption Chart (January 2024), reproduced with the chart's own legend so an “X” is not mistaken for a statewide adoption. ICC notes that not all jurisdictions report their adoptions and publishes updates at iccsafe.org/adoptions. The current edition, its effective date and the state amendments are published by Alabama Energy and Residential Codes Board (Alabama Department of Economic and Community Affairs), which controls.

Source links

• iccsafe.org

• iccsafe.org

• admincode.legislature.state.al.us