NEC® Adoption List

A great site to stay up to date with the latest happenings with the NEC® adoptions and to sign up for code alerts is: https://www.nema.org/stds/fieldreps/codealerts/
Please Note: Due to the nature of the adoption process, we cannot absolutely guarantee the correctness of this page. If you know of an error, please click here to notify us.

State

NEC Edition

Comments

Alabama

2014

Effective October 1, 2016. The AERC Board has adopted the 2015 International Energy Conservation Code as the Alabama Residential Energy Code and the 2015 International Residential Code as the Alabama Residential Building Code. This incorporates the 2014 NEC.

Alaska

2017

The Alaska Administrative Code, now adopts by reference the 2017 National Electrical Code and the 2017 National Electrical Safety Code (ANSI C2-2017). Both codes became effective on May 9, 2018.

Arizona

-

The NEC is not adopted at the state level. Each municipality is free to adopt and amend the NEC.

Arkansas

2017

Effective 1/1/18

California

2014

Effective on January 1, 2017. The 2019 building codes for California will be adopted 1/1/2020. This update will include the 2017 NEC (found in the California electrical code) and exams will be based on the 2017 NEC.

Colorado

2017

Effective 7/1/2017

Connecticut

2017

Effective October 1, 2018.

Delaware

2014

As of 3/15/2016

District of Columbia

2011

District of Columbia adopts the 2013 DC Construction Codes March 28, 2014. The 2013 Construction Codes are based on the 2012 model codes published by the International Code Council (ICC), and the 2011 National Electrical Code with amendments to reflect unique District policies and characteristics.

Florida

2014

2014 NEC as of December 31, 2017. The 6th Edition (2017) Florida Building Code goes into effect, based on the 2015 I-Codes and includes adoption of the 2014 NEC, with no state amendments.

Georgia

2017

with no state amendments, effective January 1, 2018.

Hawaii

2017

Effective 1/1/19.

Idaho

2017

2017 NEC effective July 1, 2017.

Illinois

-

There is no statewide adoption of the NEC. The state adopted the 2008NEC statewide effective July 1, 2011 for non-building code jurisdictions. The following local jurisdictions have adopted the 2008 NEC: Bloomington, Danville, Decatur, Glenn Ellyn, Mattoon, Normal, Rock Island, State of Illinois Capital Development, Washington.

Indiana

2008

Effective 6/2/2009. Deleted all Arc-Fault circuit protection and Tamper Resistant Receptacle requirements.

Iowa

2017

Effective 1/1/18

Kansas

-

There is no statewide adoption of the NEC in Kansas. 2008 NEC was adopted by the state for state-owned buildings, but local jurisdictions can adopt and enforce different codes.

Kentucky

2017

The 2018 KBC and the 2018 KRC went into effect on Aug. 22, 2018. The mandatory effective date for the 2018 KBC and the 2018 KRC is Jan. 1, 2019.

Louisiana

2014

Effective 2/1/2018

Maine

2017

November 6, 2017

Maryland

2014

Maryland has adopted 2014 NEC for all state buildings as of January 1, 2016 and by acceptance through local County ordinances as the installation standard of electrical wiring and systems. Maryland law allows Cities and Counties to adopt other editions of the NEC as they choose.

Massachusetts

2017

Effective January 1, 2017.

Michigan

2017

2017, effective January 4, 2019. The Michigan Department of Licensing and Regulatory Affairs (LARA) has updated the MI Part 8 Rules Electrical Code (2017 NEC) for 3 –Family and larger and commercial structures in the state.

Minnesota

2017

2017 NEC effective July 1, 2017

Mississippi

2014

Effective 5/1/2017. The updated MFPC is based on the 2015 International Building Code, 2015 International Fire Code, and 2015 International Residential Code. The 2014 National Electrical Code and NFPA 72-2013 are adopted as referenced. The MFPC applies to all state owned buildings, places of assembly, buildings over 75' in height, correctional facilities, and private fraternity and sorority houses. Jurisdictions may adopt local fire codes that are not less stringent than the MFPC, as determined by the State Fire Marshal.

Missouri

-

The NEC is adopted and enforced at the local level. The city of St Louis adopted 2017 NEC effective 8/1/18.

Montana

2014

Effective October 23, 2014

Nebraska

2017

2017 NEC with an effective date of August 1, 2017

Nevada

-

The NEC is adopted and enforced at the local level.

New Hampshire

2017

Effective January 1, 2018.

New Jersey

2017

2017 NEC effective September 3, 2019, as part of the makeup of the new Uniform Construction Codes (UCC) for the State.

New Mexico

2017

2017 NEC effective 2/1/2018

New York

2014

Effective October 3, 2016 - with a transition period for the newly adopted Uniform Code from April 6, 2016 to October 3, 2016. The Uniform Code update incorporates the following documents by reference: 2015 I-Codes including the 2015 IECC and by reference; 2014 National Electrical Code, 2013 ASHRAE 90.1., 2016 Energy Code Update. New York City currently on 2008 NEC.

North Carolina

2017

The North Carolina Building Code Council has adopted the 2017 NC Electrical Code (2017 NEC) with an effective date of June 12, 2018

North Dakota

2017

2017 NEC with effective date of 7/1/2017

Ohio

2017

Effective November 1, 2017 for all occupancies excluding 1-, 2-, & 3-Family dwellings.

Oklahoma

2014

Effective November 1, 2015. The OUBCC has adopted the International Building Code 2015 Edition as the statewide minimum code for commercial building construction, the International Fire Code 2015 Edition, as the statewide minimum code for residential and commercial fire prevention and fire protection systems and the International Existing Building Code 2015 Edition as the statewide minimum code for commercial existing building construction, The National Electrical Code 2014 Edition as the statewide minimum code for commercial electrical construction.

Oregon

2017

Effective 10/1/2017

Pennsylvania

2014

Effective 10/1/18, with amendments and modifications to certain sections. Philadelphia adopts 2017 NEC effective October 1, 2018, ahead of the State's UCC.

Rhode Island

2017

Effective 8/1/2019

South Carolina

2014

Effective 7/1/2016

South Dakota

2017

Effective July 1, 2017. Included in the rules package is the adoption of the 2015 edition of the International Building Code (IBC) along with the 2017 NEC with amendments.

Tennessee

2017

Effective date October 1, 2018

Texas

2017

2017 NEC effective September 1, 2017

Utah

2017

2017 for Commercial (7/1/2018); 2014 for One- and two-family dwellings (7/1/2016)

Vermont

2017

Effective October 1, 2017, with a few state-specific amendments.

Virginia

2014

The effective date of the 2015 Virginia Codes is July September 4, 2018. This includes the 2014 National Electrical Code.

Washington

2017

Effective July 1, 2017. On July 1, 2020, the 2020 edition of the National Electrical Code including Annex A, B, and C is adopted by reference as part of this chapter and replaces the 2017 edition.

West Virginia

2014

As of July 1, 2016.
West Virginia new rules package includes the following 2015 ICC Family of codes which includes the IBC, IRC with the deletion of chapter 11 (Energy Code), IPC, IMC, IFGC, IPMC, 2009 IECC (Residential), 2007 ANSI/ASHRE standard 90.1 (Commercial), 2015 IEBC, 2015 ISPSC, and the 2014 National Electrical Code (NEC) without amendments.

Wisconsin

2017

Effective 8/1/18 for commercial structures; planned adoption for one- and two-family dwellings is January 2020.

Wyoming

2017

Effective 7/1/2017 without amendment.