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NEC® Adoption List
NEED TO LEARN THE CODE?
|
State |
NEC Edition |
Comments |
|
Alabama |
2020 |
2020 effective 7/1/22. The codes and standards adopted by the Alabama Building Commission as the State Building Code apply to all State Buildings and Construction, Schools (Public and Private), Hotels/Motels, and Motion Picture Theaters. |
|
Alaska |
2020 |
Effective 4/16/20 |
|
Arizona |
- |
The NEC is not adopted at the state level. Each municipality is free to adopt and amend the NEC. |
|
Arkansas |
2020 |
With AR amendments effective 8/1/22 |
|
California |
2020 |
Effective 1/1/23 with some CA amendments |
|
Colorado |
2023 |
Effective 8/1/23
|
|
Connecticut |
2020 |
Effective 10/1/22 with CT amendments |
|
Delaware |
2020 |
Effective 9/1/21 |
|
District of Columbia |
2014 |
Effective 5/29/20 |
|
Florida |
2020 |
Effective 12/31/23 |
|
Georgia |
2023 |
Effective 1/1/25 |
|
Hawaii |
2020 |
Effective 3/4/23 |
|
Idaho |
2023 |
2023 NEC effective 7/1/24 |
|
Illinois |
- |
There is no statewide adoption of the NEC. The state adopted the 2008NEC statewide effective July 1, 2011 for non-building code jurisdictions. The following local jurisdictions have adopted the 2008 NEC: Bloomington, Danville, Decatur, Glenn Ellyn, Mattoon, Normal, Rock Island, State of Illinois Capital Development, Washington. |
|
Indiana |
2008 |
Effective 6/2/09 Commercial, with IN amendments. 2017 one-and two-family dwellings with IN amendments.
|
|
Iowa |
2023 |
Effective 7/1/25 with IA amendments |
|
Kansas |
- |
There is no statewide adoption of the NEC in Kansas. 2008 NEC was adopted by the state for state-owned buildings 2/4/11, but local jurisdictions can adopt and enforce different codes. |
|
Kentucky |
2023 |
Effective 1/1/25 |
|
Louisiana |
2020 |
Effective 1/1/23 |
|
Maine |
2023 |
Effective 7/1/24 |
|
Maryland |
2020 |
Effective 5/29/23 |
|
Massachusetts |
2023 |
Effective 2/17/23, with MA amendments |
|
Michigan |
2023 |
Effective 3/12/24 for Commercial.
|
|
Minnesota |
2023 |
Effective 7/1/23 |
|
Mississippi |
- |
Local adoption only |
|
Missouri |
- |
Local adoption only |
|
Montana |
2020 |
Effective 6/10/22 with MT amendments |
|
Nebraska |
2023 |
Effective 8/1/24 |
|
Nevada |
- |
The NEC is adopted and enforced at the local level.State Public Works Division is on the NEC-2017 effective 7/1/18. |
|
New Hampshire |
2020 |
Effective 7/1/22. 2023 update process underway (projected 7/1/25) |
|
New Jersey |
2020 |
Effective 9/6/22 with NJ amendments |
|
New Mexico |
2020 |
Effective 3/28/23 |
|
New York |
2017 |
Effective 5/12/20.
|
|
North Carolina |
2020 |
Effective 11/1/21 with NC amendments for other than one- and two-family dwellings. |
|
North Dakota |
2023 |
Effective 7/1/24 |
|
Ohio |
2023 |
2023 for Commercial effective 3/1/24. |
|
Oklahoma |
2023 |
Effective 9/14/24. |
|
Oregon |
2023 |
Effective 10/1/23 with OR amendments |
|
Pennsylvania |
2017 |
Effective 2/14/22 |
|
Rhode Island |
2020 |
Effective 2/1/22 |
|
South Carolina |
2020 |
Effective 1/1/23 with SC amendments |
|
South Dakota |
2023 |
Effective November 12, 2024 with SD amendments. |
|
Tennessee |
2017 |
Effective 10/1/18 with TN amendments |
|
Texas |
2023 |
Effective 9/1/23 |
|
Utah |
2020 |
2020 for Commercial (7/1/2021); 2014 (2015 IRC) for One- and two-family dwellings (7/1/2016) |
|
Vermont |
2020 |
Effective 4/15/22 with VT amendments. |
|
Virginia |
2020 |
Effective 1/18/24 |
|
Washington |
2023 |
Effective 4/1/24 |
|
West Virginia |
2020 |
Effective 8/1/22 with WV amendments. |
|
Wisconsin |
2017 |
Effective 8/1/18 Commercial 8/1/18, Residential 1/1/20 |
|
Wyoming |
2023 |
Effective 7/1/23 |
