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NEC® Adoption List
NEED TO LEARN THE CODE?
|
State |
NEC Edition |
Comments |
|
Alabama |
2020 |
2020 effective 7/1/23. 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 April 16, 2022 |
|
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 8/1/2022 |
|
California |
2020 |
Effective on January 1, 2023 with some CA amendments. |
|
Colorado |
2023 |
Effective 8/1/23
|
|
Connecticut |
2020 |
Effective October 1, 2022 |
|
Delaware |
2020 |
As of September 1, 2021 |
|
District of Columbia |
2014 |
Effective May 29, 2020 |
|
Florida |
2020 |
Effective 12/31/2023 |
|
Georgia |
2020 |
effective January 1, 2021 |
|
Hawaii |
2017 |
Effective 8/21/18 |
|
Idaho |
2017 |
2017 NEC effective July 1, 2017 |
|
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 6/2/2009. Deleted all Arc-Fault circuit protection and Tamper Resistant Receptacle requirements. |
|
Iowa |
2020 |
Effective 4/1/21 |
|
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 |
2017 |
The 2018 KBC and the 2018 KRC went into effect on Aug. 22, 2018. The mandatory effective date for the 2018 KBC and the 2018 KRC is Jan. 1, 2019. |
|
Louisiana |
2020 |
Effective 1/1/2023 |
|
Maine |
2020 |
Effective July 2, 2021 |
|
Maryland |
2020 |
Effective 5/29/23 |
|
Massachusetts |
2023 |
Effective February 17, 2023, with Massachusetts amendments |
|
Michigan |
2017 |
2017, effective January 4, 2019. The Michigan Department of Licensing and Regulatory Affairs (LARA) has updated the MI Part 8 Rules Electrical Code (2017 NEC) for 3-family and larger and commercial structures in the state. |
|
Minnesota |
2023 |
2023 effective July 1, 2023 |
|
Mississippi |
2014 |
Effective 5/1/2017. The updated MFPC is based on the 2015 International Building Code, 2015 International Fire Code, and 2015 International Residential Code. The 2014 National Electrical Code and NFPA 72-2013 are adopted as referenced. The MFPC applies to all state owned buildings, places of assembly, buildings over 75' in height, correctional facilities, and private fraternity and sorority houses. Jurisdictions may adopt local fire codes that are not less stringent than the MFPC, as determined by the State Fire Marshal. |
|
Missouri |
- |
The NEC is adopted and enforced at the local level. The city of St Louis adopted 2017 NEC effective 8/1/18. |
|
Montana |
2020 |
Effective June 10, 2022 |
|
Nebraska |
2017 |
2017 NEC with an effective date of August 1, 2017 |
|
Nevada |
- |
The NEC is adopted and enforced at the local level.State Public Works Division is on the NEC-2011 effective 7/1/13. |
|
New Hampshire |
2020 |
Effective July 1, 2022 |
|
New Jersey |
2020 |
2020 NEC effective September 6, 2022 |
|
New Mexico |
2020 |
2020 NEC effective 3/28/2023 |
|
New York |
2017 |
2017 NEC effective 5/12/2020. The official effective date of the 2020 New York State Uniform Fire Prevention and Building Code and State Energy Code, which references the 2017 National Electrical Code, is May 12, 2020, for all local jurisdictions statewide except for the City of New York. |
|
North Carolina |
2020 |
Effective November 1, 2021, supplemented by State Amendments. |
|
North Dakota |
2020 |
2020 NEC with an effective date of 1/1/2021
|
|
Ohio |
2017 |
Effective November 1, 2017 for all occupancies excluding 1-, 2-, & 3-Family dwellings. |
|
Oklahoma |
2020 |
Effective September 14, 2022
|
|
Oregon |
2020 |
The new 2021 OESC, based on the 2020 National Electrical Code (NEC), has been adopted and becomes effective April 1, 2021. |
|
Pennsylvania |
2017 |
Effective 2/14/2022 |
|
Rhode Island |
2020 |
Effective 2/1/2022 |
|
South Carolina |
2020 |
Effective 1/1/2023 |
|
South Dakota |
2020 |
Effective July 1, 2020, with exceptions. |
|
Tennessee |
2017 |
Effective date October 1, 2018 |
|
Texas |
2023 |
2023 NEC effective September 1, 2023 |
|
Utah |
2020 |
2020 for Commercial (7/1/2021); 2014 (2015 IRC) for One- and two-family dwellings (7/1/2016) |
|
Vermont |
2017 |
Effective October 1, 2017, with a few state-specific amendments. |
|
Virginia |
2017 |
Effective July 1, 2021 |
|
Washington |
2020 |
2020 NEC was adopted with minimal amendments, effective 10/29/20. |
|
West Virginia |
2020 |
As of August 1, 2022 |
|
Wisconsin |
2017 |
Effective 8/1/18 for commercial structures; planned adoption for one- and two-family dwellings is January 2020. |
|
Wyoming |
2023 |
Effective 7/1/2023 |
