Updated 2020 NEC Code Regulations by State
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!
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*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.
State |
Current Adopted Edition of NEC (Effective Date)
|
NEC Update Status (Effective Date) |
Alabama | 2020
| |
Alaska | 2020 (4/16/2022)
| Update process (2020) underway (Effective date not established) |
Arizona | Local adoption only
| |
Arkansas | 2020 with AR amendments (8/1/2022)
| |
California | 2020 with CA amendments (1/1/2023)
| |
Colorado | 2023 (7/1/2023)
| |
Connecticut | 2020 (10/1/2022)
| |
Delaware | 2020 (9/1/2021)
| |
Florida | 2020 (12/31/2023)
| |
Georgia | 2020 (1/1/2021)
| |
Hawaii | 2017 (8/21/2018)
| |
Idaho | 2017 (7/1/2017)
| Update process (2020) underway (7/1/2021) |
Illinois | 2008 (7/1/11 – commercial occupancies for areas outside of local jurisdictions that have adoption authority) | |
Indiana | 2008
| Update process (2017) underway (effective date not established). Removed arc-fault circuit protection and tamper-resist receptacle requirements. |
Iowa | 2020 with IA amendments (4/1/2021)
| |
Kansas | No statewide adoption of NEC. 2008 (2/4/11) state-owned buildings, local ordinances can enact different electrical codes.
| |
Kentucky | 2017 (1/1/2019)
| |
Louisiana | 2020 (1/1/2023)
| |
Maine | 2020 (7/2/2021)
| |
Maryland | 2020 (5/29/2023)
| |
Massachusetts | 2023 with MA amendments (2/17/2023)
| |
Michigan | 2017 (1/4/2019)
| MI Part 8 Rules Electrical Code for large spaces, 3-family spaces, and commercial structures. |
Minnesota | 2023 (7/1/2023)
| |
Mississippi | 2014 (5/1/2017)
| MFPC follows 2015 International Building Code, 2015 International Fire Code, and 2015 International Residential Code. |
Missouri | St.Louis adopted 2017 (8/1/18). Local adoption only.
| |
Montana | 2020 (6/10/2022)
| |
Nebraska | 2017 (8/1/17)
| |
Nevada | 2011 NEC (7/1/13 – Nevada State Public Works Division). Enforced at the local level. | |
New Hampshire | 2020 (7/1/2022)
| |
New Jersey | 2020 (9/6/2022)
| |
New Mexico | 2020 (3/28/2023)
| |
New York | 2017 (5/12/2020)
| |
North Carolina | 2020 (11/1/2021)
| |
North Dakota | 2020 (1/1/2021)
| |
Ohio | 2017 with OH amendments (11/1/2017) | One-, two-, and three-family dwellings (7/1/2019) |
Oklahoma | 2020 (9/14/2022)
| |
Oregon | 2020 with OR amendments (4/1/2021)
| |
Pennsylvania | 2017 (4/1/2021)
| |
Rhode Island | 2020 (2/14/2022)
| |
South Carolina | 2020 (1/1/2020)
| |
South Dakota | 2020 (7/1/2020), with exceptions
| |
Tennessee | 2017 (10/1/2018)
| |
Texas | 2023 (9/1/2023)
| |
Utah | 2020 for Commercial spaces (7/1/2021) | Update process (2020) underway (7/1/2021) 2014, One- and two-family dwellings (7/1/2016) |
Vermont | 2017 with Vermont amendments (10/1/2017)
| |
| Virginia | 2017 (7/1/2021)
| |
Washington | 2020 (10/29/2020)
| |
West Virginia | 2020 (8/1/2022)
| |
Wisconsin | 2017, Commercial (8/1/2018)
| One- and two-family dwellings (1/1/2020) |
Wyoming | 2023 (7/1/2023)
|
To learn more details about what code your state or area follows, please contact a licensed professional. Need to update your equipment to comply with the new regulations? Shop HomElectrical for new electrical products today!
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