Updated 2020 NEC Code Regulations by State

By avery_dietzen Last Updated On 07/08/2021

 

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.

 

State

 

Current Adopted Edition of NEC (Effective Date)

 

 

NEC Update Status (Effective Date)

Alabama

2014 (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

2017 with CA amendments (1/1/2020)

 

 

Colorado

2020 (7/1/2020)

 

 

Connecticut

2017 (10/1/2018)

 

Update process (2020) underway (Effective date not established)

Delaware

2014 (3/11/2016)

 

Update process (2017) underway (Effective date not established)

Florida

2017 (7/1/2017)

 

 

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)

Iowa

2020 with IA amendments (4/1/2021)

 

 

Kansas

2008 (2/4/11 – State Fire Marshal)

 

 

Kentucky

2017 (1/1/2019)

 

 

Louisiana

2014 (2/1/2018)

 

 

Maine

2017 with Maine Amendments (11/16/2017)

 

Update process (2020) underway (Effective date not established)

Maryland

2014 (1/1/2015)

 

 

Massachusetts

2020 w/ MA amendments (12/27/2019)

 

 

Michigan

2017 Commercial (1/4/2019)

One- and two-family dwellings (2/8/2016)

 

 

Minnesota

2020 (11/17/2020)

 

 

Mississippi

Local adoption only

 

 

Missouri

Local adoption only

 

 

Montana

2014 (10/23/2014)

 

Update process (2017) underway (effective date not established)

Nebraska

2017 (8/1/17)

 

Update process (2020) underway (effective date not established)

Nevada

2011 (7/1/13 – Nevada State Public Works Division)

 

New Hampshire

2017 with NH amendments (1/1/2018)

 

Update process (2020) underway (effective date not established)

New Jersey

2017 (9/3/19 with 6-month grace period for new permits)

 

 

New Mexico

2017 (2/1/2018)

 

Update process (2020) underway (effective date not established)

New York

2017 (5/12/2020)

 

 

North Carolina

2017 (6/12/2018)

 

Update process (2020) underway (Effective date not established)

North Dakota

2020 (1/1/2021)

 

 

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)

Oklahoma

2014

Commercial (11/1/2017)

Residential 2015 IRC Electrical Chapters (11/1/2016)

Update process (2017) underway (effective date not established)

Oregon

2020 with OR amendments (4/1/20201)

 

 

Pennsylvania

2014

 

Update process (2017) underway (Effective date not established)

Rhode Island

2017 (8/1/2019)

 

Update process (2020) underway (effective date not established)

South Carolina

2017 with SC amendments (1/1/2020)

 

 

South Dakota

2020 (7/1/2020)

 

 

Tennessee

2017 (10/1/2018)

 

 

Texas

2020 (11/1/2020)

 

 

Utah

2017

Commercial (7/1/2018)

2014

One- and two-family dwellings (7/1/2016)

Update process (2020) underway (7/1/2021)

Vermont

2017 with Vermont amendments (10/1/2017)

 

Update process (2020) underway (Effective date not established)

Virginia

2014

 

 

Washington

2020 (10/29/2020)

 

 

West Virginia

2017 (3/24/2020)

 

 

Wisconsin

2017

Commercial (8/1/2018)

 

One- and two-family dwellings (1/1/2020)

Wyoming

2020 (7/1/2020)

 

 

 

To learn more details about what code your state or area follows, please contact a licensed professional.

 

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