|
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) |
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2020 (7/1/2022), Alabama Division of Construction Management |
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2020 (4/16/2020) |
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Arizona |
Local adoption only |
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2020 with AR amendments (8/1/2022) |
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2020 with CA amendments (1/1/2023) |
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2023 (8/1/2023) |
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2020 with CT amendments (10/1/2022) |
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2020 (9/1/2021) |
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2020 (12/31/2023) |
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2020 with GA amendments (1/1/2021) |
2023 update process underway |
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2020 (3/14/2023) |
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2023 (7/1/2023) with ID amendments (temporary rules permit use of 2017 NEC w/ID amendments) |
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2008 (7/1/11 - commercial occupancies for areas outside of local jurisdictions that have adoption authority) |
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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) |
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2020 with IA amendments (4/1/2021) |
2023 update process underway (Effective date not established) |
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Kansas |
2008 (2/4/11 - State Fire Marshal) |
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2017 (1/1/2019) |
2023 update process underway (Effective date not established) |
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2020 (1/1/2023) |
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2020 with Maine amendments (7/2/2021) |
2023 update process underway (Effective date not established) |
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2017 (2/7/2020) |
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2023 with MA amendments (2/17/2023) |
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2017 |
2023 update process complete Commercial (3/12/2024) |
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2023 (7/1/2023) |
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Mississippi |
Local adoption only |
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Missouri |
Local adoption only |
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2020 with MT amendments (6/10/2022) |
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2017 (8/1/17) |
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Nevada |
2017 (7/1/18 - Nevada State Pubic Works Division) |
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2020 with NH amendments (7/1/2022 with 6-month grace period permitting use of prior adopted edition) |
2023 update process underway (Effective date not established) |
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2020 with NJ amendments (9/6/2022) |
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2020 (3/28/2023) |
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2017 (5/12/2020) |
2023 update process underway (Effective date not established) |
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2020 with NC amendments for other than one- and two-family dwellings (11/1/21) |
2023 update process underway (Projected 1/1/2025) |
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2020 (1/1/2021) |
2023 update process underway (Effective date not established) |
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2023 Residential with OH amendments (3/1/2024) |
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2020 (9/14/22) |
2023 update process underway (projected 9/14/2024) |
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2023 with OR amendments (10/1/2023) |
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2017 (2/14/2022) |
2020 update process underway (projected 7/13/2025) |
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2020 (2/1/2022) |
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2020 with SC amendments (1/1/2023) |
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2020 (7/1/2020) with SD amendments |
2023 update process underway (Effective date not established) |
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2017 (10/1/2018) with TN amendments |
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2023 (9/1/2023) |
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2020 2014 |
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2020 with VT amendments (4/15/2022) |
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2020 (1/18/2024) |
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2020 (10/29/2020) |
2023 update process underway (projected 4/1/2024) |
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2020 with WV amendments (8/1/2022) |
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2017 |
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2023 (7/1/2023) |
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2017 with Chicago amendments (3/1/2018) |
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2008 w/NYC amendments (7/1/2011) |
2020 update process underway (Effective date not established) |