State

State NEC Edition

Comments

Alabama

-

No statewide adoption of NEC; local jurisdictions can adopt and enforce different codes. 2008 NEC was adopted in 2/2008 for state buildings.

Alaska

2008

Effective 9/27/2008. The Dept. of Labor and Workforce Development may, by regulation, adopt the most recent codes to constitute the minimum electrical safety standards.

Arizona

-

The NEC is not adopted at the state level. Local authorities are enforcing 2005.

Arkansas

2008

Effective 6/1/2008. Adopted with no amendments.

California

2005

Effective 1/1/2008. Local jurisdictions must enforce the adopted codes.

Colorado

2008

Effective 7/1/2008. Adopted with no amendments.

Connecticut

2005

Effective 12/31/2005.

Delaware

2008

The Delaware State Fire Prevention Commission promulgated the 2008 NEC with an effective date of November 11, 2009.

District of Columbia

2005

Effective 12/26/2008. The 2008 DCMR 12 references the 2005 National Electrical Code.

Florida

2005

The State of Florida begins implementation of the 2008 National Electrical Code® (NEC) October 1, 2009 with one amendment to safety

Georgia

2008

Effective 1/1/2009. The only significant amendment that 2008 requirements for AFCI delayed until 1/1/2010.

Hawaii

-

There is no statewide adoption; each county has independent control.

Idaho

2008

Effective 7/1/2008; adopted with amendments

Illinois

-

There is no statewide adoption of the NEC. The following local jurisdictions have adopted the 2008 NEC: Bloomington, Danville, Decatur, Glenn Ellyn, 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

2008

Effective 2/1/2009.

Kansas

-

There is no statewide adoption of the NEC in Kansas.  2002 Code was adopted for state-owned buildings but local jurisdictions can adopt different codes.

Kentucky

2008

2008 NEC adopted 7/29/09 and enforced effective September 1, 2009.

Louisiana

2008

Effective 1/1/2010

Maine

2008

Effective 9/1/2008

Maryland

-

The adoption of the NEC is at the local level. The state adopted the 2005 NEC for state-owned facilities.

Massachusetts

2008

Effective 1/1/2008

Michigan

2008

Effective 12/2/2009

Minnesota

2008

Effective 9/15/2008; adopted without any amendments

Mississippi

-

The NEC is adopted at local levels.

Missouri

-

The NEC is adopted and enforced at the local level

Montana

2005

Effective 2/24/2006.

Nebraska

2005

Effective 4/25/2005

Nevada

-

The NEC is adopted and enforced at the local level

New Hampshire

2008

Effective 7/1/2008

New Jersey

2008

Effective 4/6/2009

New Mexico

2008

Effective 7/1/2008

New York

2002

2002 NEC for Residential Code, 2005 NEC for Building Code; New York City adopted its own building code

North Carolina

2008

Effective 6/1/2008

North Dakota

2008

Effective 4/1/2008; adopted with three amendments

Ohio

2008

Effective 1/1/2009, without amendments

Oklahoma

2008

Effective 7/1/2008. Local code adoption is allowed provided the code meets the minimum state adopted standards

Oregon

2008

Effective 4/1/2008

Pennsylvania

2005

Effective 1/1/2007

Rhode Island

2008

Effective 8/1/2008

South Carolina

2008

Adopted and Implemented 7/1/2009

South Dakota

2008

Effective 7/1/2008

Tennessee

2008

Effective 1/1/2009 with amendments regulating electrical installations in dwellings:

Texas

2008

Effective 9/1/2008

Utah

2008

Effective  1/1/2009 with no amendments

Vermont

2008

Effective 12/1/2008

Virginia

2005

Effective 3/1/2008

Washington

2008

Effective 12/31/2008 with state amendments

West Virginia

2005

Effective 5/15/2006. On June 30, 2009 the Fire Commissioners voted unanimously to send the 2008 NEC without amendments to the Joint Committee on Agency Rule Review for their approval.

Wisconsin

2008

Effective 3/1/2009, with some exceptions targeted for adoption 1/1/2010

Wyoming

2008

Effective 7/1/2008, with no amendments