Throughout the United States and around the world, NFPA 70®, National Electrical Code® (NEC®), published by the National Fire Protection Association (NFPA), sets the foundation for electrical safety in residential, commercial, and industrial occupancies. Learn more about adoption efforts, status, and the support of the
Electrical Code Coalition, which works to increase focus and emphasis on electrical safety for persons and property through direct and full adoption, application and uniform enforcement of the latest edition of the
NEC.
Where is the National Electrical Code® in effect?
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As of October 1, 2018, the 2017 NEC is in effect in 26 states, the 2014 NEC is in effect in 17 states, the 2011 NEC is in effect in 1 states, and the 2008 NEC is in effect in 3 states. If you have a question on the status of NEC adoption in any state, please contact your NFPA Regional Electrical Code Specialist.
Note: The 2017 edition of the NEC was issued by the NFPA Standards Council on August 4, 2016. The effective date was August 24, 2016, when it officially became available for adoption by federal, state, county, and municipal governmental entities.
The National Electrical Code® process in progress
As of October 1, 2018, 26 states have completed its 2017 NEC adoption process. Eleven other states are in the process of updating the statute or administrative rule through which the NEC is adopted to reference the 2017 edition.
The following table shows the current status of NEC adoption in those states having a statewide adoption that impacts construction, trade licensing, or both. Follow the link to the board or agency responsible for promulgating the NEC.
| 2011 (Effective date not established) |
| Texas |
2014 (9/1/2014) |
Adoption process underway (9/1/17) |
|
Alabama
|
July 1, 2016, (Alabama Division of Construction Management)
|
|
|
|
Alaska
|
2017 (5/9/2018)
|
|
|
|
Arizona
|
Local adoption only
|
|
|
|
Arkansas
|
2017 with AR amendments (1/1/2018)
|
|
|
|
California
|
2014 (1/1/2017)
|
Adoption process underway
(1/1/2020)
|
|
|
Colorado
|
2017 (6/1/2017)
|
|
|
|
Connecticut
|
2017 (10/1/2018)
|
|
|
|
Delaware
|
2014 (3/11/2016)
|
Not in process
|
|
|
Florida
|
2014 (12/31/2017)
|
Adoption process underway (12/31/2020)
|
|
|
Georgia
|
2017 (1/1/2018)
|
|
|
Hawaii
|
2017 (8/21/2018)
|
|
|
Idaho
|
2017 (7/1/2017)
|
|
|
| Illinois |
2008 (7/1/11 - commercial occupancies for areas outside of local jurisdictions that have adoption authority)
|
Not in process
|
Not in process
|
Indiana
|
2008
|
One- and two-family dwellings -2018 IRC Electrical Chapters, based on 2017 NEC
(Effective date not established) |
Not in process |
Iowa
|
2017 (1/1/2018) |
|
|
Kansas
|
2008 (2/4/11 - State Fire Marshal) |
Not in process |
Not in process
|
Kentucky
|
2014 (10/1/2014) |
Adoption process underway (Effective date not established) |
|
| Louisiana |
2014 (2/1/2018)
|
|
2014 edition (2/1/2018)
|
Maine
|
2017 with Maine amendments (11/6/2017) |
|
|
| Maryland |
2014 (1/1/2015) |
Not in process |
|
| Massachusetts |
2017 w/MA Amendments (1/1/2017) |
|
|
| Michigan |
2014
Commercial (6/18/2015)
One- and two-family dwellings (2/8/2016) |
Adoption process underway (effective date not established) |
|
Minnesota
|
2017 (7/1/2017)
|
|
|
Mississippi
|
Local adoption only |
|
|
Missouri
|
Local adoption only
|
|
|
Montana
|
2014 (10/23/2014) |
Adoption process underway (effective date not established)
|
|
Nebraska
|
2017 (8/1/17)
|
|
|
Nevada
|
2011 (7/1/13 - Nevada State Pubic Works Division) |
Not in process |
Not in process |
New Hampshire
|
2017 with NH amendments (1/1/2018)
|
|
|
New Jersey
|
2014 (9/21/15 with 6 month grace period for new permits)
|
Adoption process underway
(effective date not established) |
|
New Mexico
|
2017 (2/1/2018) |
|
|
| New York |
2014 (4/6/2016 with 6-month grace period ending 10/3/2016) |
Not in process |
|
North Carolina
|
2017 (6/12/2018)
|
|
|
North Dakota
|
2017 (7/1/2017) |
|
|
Ohio
|
2017
Commercial (11/1/2017)
2014
One-, two- and three-family dwellings (1/1/2016)
|
One-, two- and three-family dwellings (7/1/2019)
|
|
Oklahoma
|
2014
Commercial (11/1/2015)
Residential 2015 IRC Electrical
Chapters (11/1/2016) |
Adoption process underway
(effective date not established) |
|
Oregon
|
2017 with Oregon amendments (10/1/2017)
|
|
|
Pennsylvania
|
2014
|
|
|
Rhode Island
|
2014 (7/1/2014)
|
Adoption process underway (effective date not established)
|
|
South Carolina
|
2014 (7/1/2016)
|
Adoption process underway (7/1/2019 projected) |
|
South Dakota
|
2017 (7/1/2017)
|
|
|
Tennessee
|
2017 (10/1/2018)
|
|
|
Texas
|
2017 (9/1/2017)
|
|
|
Utah
|
2017
Commercial (7/1/2018)
2014
One- and two-family dwellings (7/1/2016)
|
|
|
Vermont
|
2017 with Vermont amendments (10/1/2017)
|
|
|
Virginia
|
2014
|
|
|
| Washington |
2017 (7/1/2017) |
|
|
West Virginia
|
2014 (8/1/2016)
|
Not in process |
|
Wisconsin
|
2017
Commercial (8/1/2018)
|
One- and two-family dwellings (1/1/2020)
|
|
Wyoming
|
2017 (7/1/2017)
|
|
|
| Chicago |
2017 with Chicago amendments (3/1/2018) |
|
|
| 2011 (Effective date not established) |
| Texas |
2014 (9/1/2014) |
Adoption process underway (9/1/17) |