North Carolina Building Code: Which Editions Are Adopted

Direct answer

2018 North Carolina State Building Code, effective 1 January 2019; the adopted 2024 code is on hold in North Carolina. 2015 I-Codes, rewritten as the North Carolina Building, Residential, Fire, Energy Conservation and Existing Building Codes. The State Building Code applies statewide and is enforced by city and county inspection departments; local governments cannot adopt their own building codes. 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. Local amendments sit on top of the state adoption and can change a requirement without changing the edition, so read the adopting ordinance for the permit jurisdiction alongside the state text. This was checked on 2026-10-01 against North Carolina Office of State Fire Marshal, Engineering and Codes Division, 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 North Carolina adopted now?

2018 North Carolina State Building Code, effective 1 January 2019; the adopted 2024 code is on hold.

2015 I-Codes, rewritten as the North Carolina Building, Residential, Fire, Energy Conservation and Existing Building Codes.

Transition: The 2024 North Carolina State Building Code, based on the 2021 I-Codes, has been adopted by the Building Code Council and approved by the Rules Review Commission, but the General Assembly has delayed it. Under S.L. 2025-2 it takes effect 12 months after the first day of the month following the State Fire Marshal's certification that the code is published and the Residential Code Council is fully constituted; as of June 2026 that had not happened, and the earliest possible date cited by the state licensing board is 1 May 2027. Until then an owner may ask to use the 2024 code as an alternative method of construction. The 2024 Residential Code keeps chapters 11 to 24 of the 2018 Residential Code, including the residential energy chapter.

Local adoption: The State Building Code applies statewide and is enforced by city and county inspection departments; local governments cannot adopt their own building codes.

Checked 2026-10-01 against North Carolina Office of State Fire Marshal, Engineering and Codes Division. 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 North Carolina. Where this disagrees with the record above, the record above is newer:

North Carolina has a recorded edition year for 9 of the 17 codes: 2021 for the building, residential, fire, mechanical, plumbing, fuel gas, residential energy, commercial energy and existing buildings codes. No adoption at all is recorded for the private sewage, green construction, property maintenance, swimming pool and spa, performance, wildland-urban interface, zoning and green building standard codes.

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

How North Carolina 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.

South Carolina, Virginia, Georgia and Tennessee differ from North Carolina on the building code alone. A practice working across that border is working to two editions, whatever the office standard says.

Where North Carolina sits in the national record

Of the 50 states and the District of Columbia, 3 enforce the 2015 IBC statewide, 30 a later edition, 1 an earlier one, and 17 have no statewide IBC edition in force. North Carolina is therefore behind most of the country on the building code, which matters for anyone carrying a detail or a code-analysis sheet in from a neighbouring state.

Across all 17 codes the January 2024 ICC chart tracks, North Carolina 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 North Carolina project

1. Open North Carolina Office of State Fire Marshal, Engineering and Codes Division 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 North Carolina at /building-codes/us-states/north-carolina. That is a historical reference for the 2009 editions and is not North Carolina's current code basis.

North Carolina 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
• South Carolina Building Code: Which Editions Are Adopted
• Virginia Building Code: Which Editions Are Adopted
• Georgia Building Code: Which Editions Are Adopted
• Tennessee 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 North Carolina Office of State Fire Marshal, Engineering and Codes Division, which controls.

Source links

• iccsafe.org

• iccsafe.org

• ncosfm.gov