State

NEC Edition

Comments

Alabama

-

NEC adoption is not uniform across the state. 2011 NEC was adopted by the state 4/18/11 for state-owned buildings, but local jurisdictions can adopt and enforce different codes.

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. Each municipality is free to adopt and amend the NEC.

Arkansas

2008

Effective 6/1/2008. Adopted with no amendments.
The Board of Examiners met on 8/16/11 to discuss implementation of the 2011 NEC, proposed to be effective 9/15/2011

California

2008

On January 12, 2010, the Commission approved adoption of the 2010 California Building Code, 2010 California Residential Code, 2010 California Green Building Code, and the 2010 California Electrical Code, enforcement date of January 1, 2011. The building codes are based on the 2009 Editions of the ICC codes. The 2010 California Electrical Code (CEC) is based on the 2008 National Electrical Code with State amendments.

Colorado

2011

Colorado adopted 2011 NEC effective 7-1-11

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

2008

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

Georgia

2011

Effective 1/1/2012, with no amendments.

Hawaii

-

Local jurisdictions can adopt and enforce different codes. 2008 NEC was adopted by the state for state-owned buildings

Idaho

2008

Effective 7/1/2008; adopted with amendments. The State posted a draft of the proposed electrical rules that will adopt the 2011 NEC for review at the April 21/11 meeting (final decision at the July 19 meeting); expected implementation date is July 1, 2012.

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

2011

Effective 1/1/2012 with some exceptions.

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

2011

On November 30, 2011 the State of Kentucky approved the adoption of the 2011 NEC in the Kentucky Building Code without amendment. The 2011 NEC will become mandatory for all buildings in the state on February 1, 2012.

Louisiana

2008

Effective 1/1/2010.

Maine

2011

The 2011 NEC, with six technical amendments, became effective on July 19, 2011.

Maryland

-

The adoption of the NEC is at the local level. The state adopted the 2008 NEC on 1/1/2010 for state-owned facilities.

Massachusetts

2011

On January 1, 2011 the 2011 National Electrical Code (NEC®) became the basis for the 2011 Massachusetts Electrical Code.

Michigan

2008

Effective 12/2/2009.

Minnesota

2011

2011 NEC without amendment, effective date August 8, 2011.

Mississippi

-

The NEC is adopted at local levels.

Missouri

-

The NEC is adopted and enforced at the local level.

Montana

2008

Effective July 30, 2010

Nebraska

2011

Governor approved LB 56 which updated the Nebraska State Electrical Act. This includes the adoption of the 2011 NEC without amendment as the minimum standard for electrical wiring in Nebraska, effective August 27, 2011.

Nevada

-

The NEC is adopted and enforced at the local level.

New Hampshire

2011

The 2011 NEC with a single amendment is effective July 1, 2011.

New Jersey

2008

Effective 4/6/2009.

New Mexico

2008

Effective 7/1/2008.

New York

2008

State Fire Prevention and Building Code Council adopted a rule establishing the 2010 Energy Conservation Construction Code of New York State (the 2010 ECCCNYS) as the Energy Code in New York State. The updated Uniform Code is based on the 2006 International family of codes, and the 2010 ECCCNYS will be based on the 2009 IECC and ASHRAE 90.1-2007. NYS also uses the ICC-700 for new construction or rehabs according to NYSERDA regulations. The 2010 ECCCNYS satisfies ARRA’s requirements, and became effective on December 28, 2010. Note: The City of New York has additional requirements. On June 28, 2011, New York City Mayor Michael R. Bloomberg signed Introductory Number 64-A (Intro 64-A that updates the current NYC Electrical Code by adopting the 2008 National Electrical Code with local amendments effective July 1, 2011

North Carolina

2008

Effective 6/1/2008.

North Dakota

2011

2011 NEC with implementation date of 9/1/2011

Ohio

2008

Effective 1/1/2009, without amendments.
Ohio adopted 2011 NEC May2011 for Commercial only with implementation scheduled for 11-1-11

Oklahoma

2008

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

Oregon

2011

Oregon adopted 2011 NEC effective 4/1/2011

Pennsylvania

2008

Effective Dec 10, 2009 Pennsylvania adopted the 2009 International Building Code and 2009 International Residential Code which reference the 2008 NEC.

Rhode Island

2011

2011 effective August 1, 2011. On June 23, 2011, the Rhode Island Building Code Legislative Oversight Committee approved the recommendation of the State Building Code Standards Committee to amend the Rhode Island Electrical Code (SBC-5) by updating the referenced document from the 2008 NEC to the 2011 NEC (with modifications).

South Carolina

2008

Adopted and Implemented 7/1/2009.
On August 24, 2011 the South Carolina Building Code Council met to discuss the adoption of the latest edition of the ICC family of codes and the 2011 edition of the National Electrical Code. South Carolina adopts both the National Electrical Code and the International Residential Code along with the electrical provisions in the International Residential Code.

South Dakota

2011

Effective July 1, 2011 (with exceptions)

Tennessee

2008

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

Texas

2011

Effective 9/1/2011.

Utah

2008

Effective 1/1/2009 with no amendments. On August 10, 2011, the Utah Uniform Building Codes Commission voted to adopt the 2011 National Electrical Code with a single amendment. The provisions of the 2011 NEC are expected to be effective on July 1, 2012. It should be noted however that Utah recognizes and adopts the electrical provisions of the International Residential Code. That means that the NEC does not apply to residences covered by the IRC: one and two-family dwellings and townhouses.

Vermont

2011

The Vermont Commissioner of Public Safety and the Electricians Licensing Board announced the adoption of the Vermont Electrical Safety Rules 2011, effective June 1, 2011. The 2011 NEC was adopted with fourteen amendments.

Virginia

2008

Virginia Housing Board adopted 2009 IRC with 2008 NEC with implementation 3-1-11, but with 2005 AFCI

Washington

2008

Effective 12/31/2008 with state amendments.
Scheduled development of 2011NEC suspended until at least January 1, 2012. The indication is that Washington will skip the 2011 Edition entirely, and will move directly to the 2014 NEC. This will leave the state on the 2008 Edition for at least another 3 years.

West Virginia

2008

West Virginia: As of July 1, 2010 the State of West Virginia adopted the 2008 NEC without amendment.

Wisconsin

2008

Effective 3/1/2009, with some exceptions

Wyoming

2011

Effective 7/1/2011