The National Fire Protection Agency publishes official updates to the National Electrical Code (NEC) every three years. As of June 1, 2021, eleven states enacted the 2020 NEC. Eleven more states have begun the process to update their current version of the NEC to the 2020 NEC. Check to see which version of the NEC code your state follows!
*Please note: The NFPA Standards Council issued the 2020 edition of the National Electrical Code on August 5, 2019. It’s effective date, when it became officially available for federal, state, county, and municipal governmental entities to update electrical installation regulations, was August 25, 2019.
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State |
Current Adopted Edition of NEC (Effective Date)
|
NEC Update Status (Effective Date) |
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Alabama |
2014 (July 1, 2016 (Alabama Division of Construction Management))
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Alaska |
2017 (5/9/2018)
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Arizona |
Local adoption only
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Arkansas |
2017 with AR amendments (1/1/2018)
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California |
2017 with CA amendments (1/1/2020)
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Colorado |
2020 (7/1/2020)
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Connecticut |
2017 (10/1/2018)
|
Update process (2020) underway (Effective date not established) |
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Delaware |
2014 (3/11/2016)
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Update process (2017) underway (Effective date not established) |
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Florida |
2017 (7/1/2017)
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Georgia |
2020 (1/1/2021)
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Hawaii |
2017 (8/21/2018)
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Idaho |
2017 (7/1/2017)
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Update process (2020) underway (7/1/2021) |
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Illinois |
2008 (7/1/11 – commercial occupancies for areas outside of local jurisdictions that have adoption authority) |
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Indiana |
2008
|
Update process (2017) underway (effective date not established) |
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Iowa |
2020 with IA amendments (4/1/2021)
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Kansas |
2008 (2/4/11 – State Fire Marshal)
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Kentucky |
2017 (1/1/2019)
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Louisiana |
2014 (2/1/2018)
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Maine |
2017 with Maine Amendments (11/16/2017)
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Update process (2020) underway (Effective date not established) |
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Maryland |
2014 (1/1/2015)
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Massachusetts |
2020 w/ MA amendments (12/27/2019)
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Michigan |
2017 Commercial (1/4/2019) One- and two-family dwellings (2/8/2016)
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Minnesota |
2020 (11/17/2020)
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Mississippi |
Local adoption only
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Missouri |
Local adoption only
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Montana |
2014 (10/23/2014)
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Update process (2017) underway (effective date not established) |
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Nebraska |
2017 (8/1/17)
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Update process (2020) underway (effective date not established) |
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Nevada |
2011 (7/1/13 – Nevada State Public Works Division) |
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New Hampshire |
2017 with NH amendments (1/1/2018)
|
Update process (2020) underway (effective date not established) |
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New Jersey |
2017 (9/3/19 with 6-month grace period for new permits)
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New Mexico |
2017 (2/1/2018)
|
Update process (2020) underway (effective date not established) |
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New York |
2017 (5/12/2020)
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North Carolina |
2017 (6/12/2018)
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Update process (2020) underway (Effective date not established) |
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North Dakota |
2020 (1/1/2021)
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Ohio |
2017 Commercial (11/1/2017) 2017, with Ohio amendments One-, two-, and three-family dwellings (7/1/2019) |
Update process (2020) underway (Effective date not established) |
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Oklahoma |
2014 Commercial (11/1/2017) Residential 2015 IRC Electrical Chapters (11/1/2016) |
Update process (2017) underway (effective date not established) |
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Oregon |
2020 with OR amendments (4/1/20201)
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Pennsylvania |
2014
|
Update process (2017) underway (Effective date not established) |
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Rhode Island |
2017 (8/1/2019)
|
Update process (2020) underway (effective date not established) |
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South Carolina |
2017 with SC amendments (1/1/2020)
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South Dakota |
2020 (7/1/2020)
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Tennessee |
2017 (10/1/2018)
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Texas |
2020 (11/1/2020)
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Utah |
2017 Commercial (7/1/2018) 2014 One- and two-family dwellings (7/1/2016) |
Update process (2020) underway (7/1/2021) |
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Vermont |
2017 with Vermont amendments (10/1/2017)
|
Update process (2020) underway (Effective date not established) |
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Virginia |
2014
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Washington |
2020 (10/29/2020)
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West Virginia |
2017 (3/24/2020)
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Wisconsin |
2017 Commercial (8/1/2018)
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One- and two-family dwellings (1/1/2020) |
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Wyoming |
2020 (7/1/2020)
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To learn more details about what code your state or area follows, please contact a licensed professional.
References:
https://www.nfpa.org/NEC/NEC-adoption-and-use/NEC-adoption-maps
