The following table shows the edition of the NEC in effect in those states having a statewide regulation that impacts construction, trade licensing, or both. Follow the link to the board or agency responsible for updating the NEC.

2011 (Effective date not established)
Texas	2014 (9/1/2014)	Adoption process underway (9/1/17)

State	Current Edition of the NEC in effect (effective date)	2020 or 2023 NEC UPDATE status (effective date)	Other editions of NEC Update status (effective date)
Alabama	2020 (7/1/2022), Alabama Division of Construction Management
Alaska	2020 (4/16/2020)
Arizona	Local adoption only
Arkansas	2020 with AR amendments (8/1/2022)
California	2020 with CA amendments (1/1/2023)	2023 update process underway (Projected 1/1/2026)
Colorado	2023 (8/1/2023)
Connecticut	2020 with CT amendments (10/1/2022)	2023 update process underway (Effective date not established)
Delaware	2020 (9/1/2021)
Florida	2020 (12/31/2023)
Georgia	2023 (1/1/2025)
Hawaii	2020 (3/14/2023)
Idaho	2023 (7/1/2023) with ID amendments (temporary rules permit use of 2017 NEC w/ID amendments)
Illinois	2008 (7/1/11 - commercial occupancies for areas outside of local jurisdictions that have adoption authority)
Indiana	2008 Commercial with IN amendments (8/26/2009) 2017 (2018 IRC) One- and two-family dwellings with IN amendments (12/26/2019)	2023 Update process underway (Effective date not established)
Iowa	2020 with IA amendments (4/1/2021)	2023 update process underway (Effective date not established)
Kansas	2008 (2/4/11 - State Fire Marshal)
Kentucky	2023 (1/1/2025)
Louisiana	2020 (1/1/2023)
Maine	2023 with Maine amendments (7/1/2024)
Maryland	2017 (2/7/2020)
Massachusetts	2023 with MA amendments (2/17/2023)
Michigan	2023 Commercial (3/12/2024) 2017 One- and two-family dwellings (2/8/2016)	Residential 2023 update process underway (Effective date not established)
Minnesota	2023 (7/1/2023)
Mississippi	Local adoption only
Missouri	Local adoption only
Montana	2020 with MT amendments (6/10/2022)
Nebraska	2023 (8/1/2024)
Nevada	2017 (7/1/18 - Nevada State Pubic Works Division)
New Hampshire	2020 with NH amendments (7/1/2022 with 6-month grace period permitting use of prior adopted edition)	2023 update process underway (Projected 7/1/2025)
New Jersey	2020 with NJ amendments (9/6/2022)
New Mexico	2020 (3/28/2023)
New York	2017 (5/12/2020)	2023 update process underway (Effective date not established)
North Carolina	2020 with NC amendments for other than one- and two-family dwellings (11/1/21)	2023 update process underway (Projected 7/1/2025)
North Dakota	2023 (7/1/2024)
Ohio	2023 Commercial (3/1/2024) Residential with OH amendments (4/15/2024)
Oklahoma	2023 (9/14/2024)
Oregon	2023 with OR amendments (10/1/2023)
Pennsylvania	2017 (2/14/2022)	2020 update process underway (projected 7/13/2025)
Rhode Island	2020 (2/1/2022)
South Carolina	2020 with SC amendments (1/1/2023)
South Dakota	2023 (11/12/2024) with SD amendments
Tennessee	2017 (10/1/2018) with TN amendments
Texas	2023 (9/1/2023)
Utah	2020 Commercial (7/1/2021) with UT amendments 2014 Residential (7/1/2016) with UT amendments
Vermont	2020 with VT amendments (4/15/2022)
Virginia	2020 (1/18/2024)
Washington	2023 (4/1/2024)
West Virginia	2020 with WV amendments (8/1/2022)
Wisconsin	2017 Commercial (8/1/2018) Residential (1/1/2020)
Wyoming	2023 (7/1/2023)
Chicago	2017 with Chicago amendments (3/1/2018)
New York City	2008 w/NYC amendments (7/1/2011)	2020 update process underway (Effective date not established)

Additional code support information

The Electrical Code Coalition, which is comprised of electrical and safety organizations, provides resources to promote the use of the most current edition of NFPA 70^®, National Electrical Code^® (NEC^®). For more information about the Electrical Code Coalition, visit NFPA Xchange™.

2011 (Effective date not established)
Texas	2014 (9/1/2014)	Adoption process underway (9/1/17)