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Energy codes and standards for every states in the US

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Alabama

Current Code: ASHRAE Standard 90.1-2013

Approximate Energy Efficiency: Equivalent to ASHRAE 90.1-2013

Effective Date: Jan. 01, 2016

Code Enforcement: Mandatory

Current Code: 2015 IECC with Amendments

Approximate Energy Efficiency: Less energy efficient than 2015 IECC

Effective Date: Oct. 01, 2016

Code Enforcement: Mandatory

Alaska

Current Code: None Statewide

Effective Date: Jul. 01, 2013

Code Enforcement: Voluntary
Current Code: None Statewide

Effective Date: Jul. 01, 2013

Code Enforcement: Voluntary

American Samoa

Current Code: None Statewide

Current Code: None Statewide

Arizona

Current Code: None Statewide

Current Code: None Statewide

Arkansas

Current Code: 2009 IECC

Approximate Energy Efficiency: Equivalent to 2009 IECC

Effective Date: Jan. 01, 2015

Code Enforcement: Mandatory

Current Code: 2009 IECC with Amendments

Approximate Energy Efficiency: Less energy efficient than 2009 IECC

Effective Date: Jan. 01, 2015

Code Enforcement: Mandatory

California

Current Code: State Specific

Approximate Energy Efficiency: More energy efficient than ASHRAE 90.1-2010

Effective Date: Jan. 01, 2014

Code Enforcement: MandatoryCurrent Code: State Specific

Approximate Energy Efficiency: More energy efficient than 2012 IECC

Effective Date: Jan. 01, 2014

Code Enforcement: Mandatory

Colorado

Current Code: 2003 IECC

Approximate Energy Efficiency: Equivalent to 2003 IECC

Effective Date: Jan. 01, 2008

Code Enforcement: MandatoryCurrent Code: 2003 IECC

Approximate Energy Efficiency: Equivalent to 2003 IECC

Effective Date: Jan. 01, 2008

Code Enforcement: Mandatory

Connecticut

Current Code: 2012 IECC with Amendments

Approximate Energy Efficiency: Equivalent to 2012 IECC

Effective Date: Oct. 01, 2016

Code Enforcement: MandatoryCurrent Code: 2012 IECC with Amendments

Approximate Energy Efficiency: Equivalent to 2012 IECC

Effective Date: Oct. 01, 2016

Code Enforcement: Mandatory

Delaware

Current Code: ASHRAE Standard 90.1-2010

Approximate Energy Efficiency: Equivalent to ASHRAE 90.1-2010

Effective Date: May. 11, 2014

Code Enforcement: MandatoryCurrent Code: 2012 IECC with Amendments

Approximate Energy Efficiency: Less energy efficient than 2012 IECC

Effective Date: May. 11, 2014

Code Enforcement: Mandatory

Florida

Current Code: State Specific

Approximate Energy Efficiency: More energy efficient than 2012 IECC

Effective Date: Jun. 30, 2015

Code Enforcement: MandatoryCurrent Code: State Specific

Approximate Energy Efficiency: More energy efficient than 2012 IECC

Effective Date: Jun. 30, 2015

Code Enforcement: Mandatory

Georgia

Current Code: 2009 IECC with Amendments

Approximate Energy Efficiency: Equivalent to 2009 IECC

Effective Date: Jan. 01, 2011

Code Enforcement: MandatoryCurrent Code: 2009 IECC with Amendments

Approximate Energy Efficiency: More energy efficient than 2009 IECC

Effective Date: Jan. 01, 2011

Code Enforcement: Mandatory

Guam

Current Code: State Specific

Approximate Energy Efficiency: Equivalent to 2009 IECC

Effective Date: Oct. 01, 2010

Code Enforcement: MandatoryCurrent Code: 2009 IRC

Approximate Energy Efficiency: Equivalent to 2009 IECC

Code Enforcement: Mandatory

Hawaii

Current Code: 2015 IECC with Amendments

Approximate Energy Efficiency: Equivalent to 2015 IECC

Effective Date: Jul. 14, 2015

Code Enforcement: MandatoryCurrent Code: 2015 IECC with Amendments

Approximate Energy Efficiency: Equivalent to 2015 IECC

Effective Date: Jul. 14, 2015

Code Enforcement: Mandatory

Idaho

Current Code: 2012 IECC

Approximate Energy Efficiency: Equivalent to 2012 IECC

Effective Date: Jan. 01, 2015

Code Enforcement: MandatoryCurrent Code: 2012 IECC with Amendments

Approximate Energy Efficiency: Less energy efficient than 2012 IECC

Effective Date: Jan. 01, 2015

Code Enforcement: Mandatory

Illinois

Current Code: 2015 IECC with Amendments

Approximate Energy Efficiency: Equivalent to 2015 IECC

Effective Date: Jan. 01, 2016

Code Enforcement: MandatoryCurrent Code: 2015 IECC with Amendments

Approximate Energy Efficiency: Less energy efficient than 2015 IECC

Effective Date: Jan. 01, 2016

Code Enforcement: Mandatory

Indiana

Current Code: State Specific

Approximate Energy Efficiency: Equivalent to ASHRAE 90.1-2007

Effective Date: May. 06, 2010

Code Enforcement: MandatoryCurrent Code: State Specific

Approximate Energy Efficiency: Equivalent to 2009 IECC

Effective Date: Apr. 05, 2012

Code Enforcement: Mandatory

Iowa

Current Code: 2012 IECC

Approximate Energy Efficiency: Equivalent to 2012 IECC

Effective Date: Jun. 01, 2014

Code Enforcement: MandatoryCurrent Code: 2012 IECC with Amendments

Approximate Energy Efficiency: Less energy efficient than 2012 IECC

Effective Date: Jun. 01, 2014

Code Enforcement: Mandatory

Kansas

Current Code: None Statewide

Effective Date: Apr. 10, 2007

Code Enforcement: Voluntary
Current Code: None Statewide

Kentucky

Current Code: 2012 IECC

Approximate Energy Efficiency: Equivalent to 2012 IECC

Effective Date: Oct. 01, 2014

Code Enforcement: MandatoryCurrent Code: 2009 IECC with Amendments

Approximate Energy Efficiency: Equivalent to 2009 IECC

Effective Date: Oct. 01, 2014

Code Enforcement: Mandatory

Louisiana

Current Code: ASHRAE Standard 90.1-2007

Approximate Energy Efficiency: Equivalent to ASHRAE 90.1-2007

Effective Date: Jul. 20, 2011

Code Enforcement: MandatoryCurrent Code: 2009 IRC

Approximate Energy Efficiency: Equivalent to 2009 IRC

Effective Date: Jan. 01, 2015

Code Enforcement: Mandatory

Maine

Current Code: ASHRAE Standard 90.1-2007

Approximate Energy Efficiency: Equivalent to ASHRAE 90.1-2007

Effective Date: Dec. 01, 2010

Code Enforcement: MandatoryCurrent Code: 2009 IECC

Approximate Energy Efficiency: Equivalent to 2009 IECC

Effective Date: Dec. 01, 2010

Code Enforcement: Mandatory

Maryland

Current Code: 2015 IECC

Approximate Energy Efficiency: Equivalent to 2015 IECC

Effective Date: Jan. 01, 2015

Code Enforcement: MandatoryCurrent Code: 2015 IECC

Approximate Energy Efficiency: Equivalent to 2015 IECC

Effective Date: Jan. 01, 2015

Code Enforcement: Mandatory

Massachusetts

Current Code: 2012 IECC

Approximate Energy Efficiency: Equivalent to 2012 IECC

Effective Date: Jul. 01, 2014

Code Enforcement: MandatoryCurrent Code: 2012 IECC

Approximate Energy Efficiency: Equivalent to 2012 IECC

Effective Date: Jul. 01, 2014

Code Enforcement: Mandatory

Michigan

Current Code: 2012 IECC with Amendments

Approximate Energy Efficiency: Equivalent to 2012 IECC

Effective Date: Jun. 02, 2015

Code Enforcement: MandatoryCurrent Code: 2012 IECC with Amendments

Approximate Energy Efficiency: Equivalent to 2012 IECC

Effective Date: Feb. 14, 2015

Code Enforcement: Mandatory

Minnesota

Current Code: 2012 IECC with Amendments

Approximate Energy Efficiency: Equivalent to 2012 IECC

Effective Date: Jun. 02, 2015

Code Enforcement: MandatoryCurrent Code: 2012 IECC with Amendments

Approximate Energy Efficiency: Equivalent to 2012 IECC

Effective Date: Feb. 14, 2015

Code Enforcement: Mandatory

Mississippi

Current Code: ASHRAE Standard 90.1-2010

Approximate Energy Efficiency: Equivalent to ASHRAE 90.1-2010

Effective Date: Jul. 01, 2013

Code Enforcement: MandatoryCurrent Code: None Statewide

Missouri

Current Code: None Statewide

Current Code: None Statewide

Montana

Current Code: 2012 IECC

Approximate Energy Efficiency: Equivalent to 2012 IECC

Effective Date: Nov. 07, 2014

Code Enforcement: MandatoryCurrent Code: 2012 IECC with Amendments

Approximate Energy Efficiency: Less energy efficient than 2012 IECC

Effective Date: Nov. 07, 2014

Code Enforcement: Mandatory

Nebraska

Current Code: 2009 IECC

Approximate Energy Efficiency: Equivalent to 2009 IECC

Effective Date: Aug. 24, 2011

Code Enforcement: MandatoryCurrent Code: 2009 IECC

Approximate Energy Efficiency: Equivalent to 2009 IECC

Effective Date: Aug. 24, 2011

Code Enforcement: Mandatory

Nevada

Current Code: 2012 IECC

Approximate Energy Efficiency: Equivalent to 2012 IECC

Effective Date: Jul. 01, 2015

Code Enforcement: MandatoryCurrent Code: 2012 IECC

Approximate Energy Efficiency: Equivalent to 2012 IECC

Effective Date: Jul. 01, 2015

Code Enforcement: Mandatory

New Hampshire

Current Code: 2009 IECC

Approximate Energy Efficiency: Equivalent to 2009 IECC

Effective Date: Apr. 01, 2010

Code Enforcement: MandatoryCurrent Code: 2009 IECC

Approximate Energy Efficiency: Equivalent to 2009 IECC

Effective Date: Apr. 01, 2010

Code Enforcement: Mandatory

New Jersey

Current Code: ASHRAE Standard 90.1-2013

Approximate Energy Efficiency: Equivalent to ASHRAE 90.1-2013

Effective Date: Sep. 21, 2015

Code Enforcement: MandatoryCurrent Code: 2015 IECC

Approximate Energy Efficiency: Equivalent to 2015 IECC

Effective Date: Sep. 21, 2015

Code Enforcement: Mandatory

New Mexico

Current Code: 2009 IECC with Amendments

Approximate Energy Efficiency: Equivalent to 2009 IECC

Effective Date: Jan. 01, 2012

Code Enforcement: MandatoryCurrent Code: 2009 IECC with Amendments

Approximate Energy Efficiency: Equivalent to 2009 IECC

Effective Date: Jan. 01, 2012

Code Enforcement: Mandatory

New York

Current Code: 2015 IECC with Amendments

Approximate Energy Efficiency: Equivalent to 2015 IECC

Effective Date: Oct. 03, 2016

Code Enforcement: MandatoryCurrent Code: 2015 IECC with Amendments

Approximate Energy Efficiency: Equivalent to 2015 IECC

Effective Date: Oct. 03, 2016

Code Enforcement: Mandatory

North Carolina

Current Code: State Specific

Approximate Energy Efficiency: More energy efficient than 2009 IECC

Effective Date: Mar. 01, 2012

Code Enforcement: MandatoryCurrent Code: State Specific

Approximate Energy Efficiency: More energy efficient than 2009 IECC

Effective Date: Mar. 01, 2012

Code Enforcement: Mandatory

North Dakota

Current Code: None Statewide

Effective Date: Jan. 01, 2014

Code Enforcement: Voluntary
Current Code: None Statewide

Effective Date: Jan. 01, 2014

Code Enforcement: Voluntary

Northern Mariana Islands

Current Code: Tropical Model Energy Code

Approximate Energy Efficiency: Equivalent to ASHRAE 90.1-2001

Current Code: Tropical Model Energy Code

Approximate Energy Efficiency: Equivalent to ASHRAE 90.1-2001

Ohio

Current Code: 2012 IECC with Amendments

Approximate Energy Efficiency: Equivalent to 2012 IECC

Effective Date: Jan. 01, 2017

Code Enforcement: MandatoryCurrent Code: 2012 IECC with Amendments

Approximate Energy Efficiency: Equivalent to 2012 IECC

Effective Date: Jan. 01, 2017

Code Enforcement: Mandatory

Oklahoma

Current Code: 2006 IECC

Approximate Energy Efficiency: Equivalent to 2006 IECC

Effective Date: Jul. 15, 2011

Code Enforcement: MandatoryCurrent Code: 2009 IECC

Approximate Energy Efficiency: Equivalent to 2009 IECC

Effective Date: Nov. 01, 2016

Code Enforcement: Mandatory

Oregon

Current Code: State Specific

Approximate Energy Efficiency: Equivalent to ASHRAE 90.1-2010

Effective Date: Jul. 01, 2014

Code Enforcement: MandatoryCurrent Code: State Specific

Approximate Energy Efficiency: Equivalent to 2012 IECC

Effective Date: Dec. 01, 2014

Code Enforcement: Mandatory

Pennsylvania

Current Code: 2009 IECC

Approximate Energy Efficiency: Equivalent to 2009 IECC

Effective Date: Dec. 31, 2009

Code Enforcement: MandatoryCurrent Code: 2009 IECC

Approximate Energy Efficiency: Equivalent to 2009 IECC

Effective Date: Dec. 31, 2009

Code Enforcement: Mandatory

Puerto Rico

Current Code: None Statewide

Approximate Energy Efficiency: Equivalent to 2009 IECC

Effective Date: Feb. 24, 2011

Code Enforcement: MandatoryCurrent Code: None Statewide

Approximate Energy Efficiency: Equivalent to 2009 IECC

Effective Date: Feb. 24, 2011

Code Enforcement: Mandatory

Rhode Island

Current Code: 2012 IECC

Approximate Energy Efficiency: Equivalent to 2012 IECC

Effective Date: Jul. 01, 2013

Code Enforcement: MandatoryCurrent Code: 2012 IECC

Approximate Energy Efficiency: Equivalent to 2012 IECC

Effective Date: Jul. 01, 2013

Code Enforcement: Mandatory

South Carolina

Current Code: 2009 IECC

Approximate Energy Efficiency: Equivalent to 2009 IECC

Effective Date: Jan. 01, 2013

Code Enforcement: MandatoryCurrent Code: 2009 IECC

Approximate Energy Efficiency: Equivalent to 2009 IECC

Effective Date: Jan. 01, 2013

Code Enforcement: Mandatory

South Dakota

Current Code: None Statewide

Current Code: None Statewide

Approximate Energy Efficiency: Equivalent to 2009 IECC

Effective Date: Jul. 01, 2011

Code Enforcement: Voluntary

Tennessee

Current Code: 2012 IECC

Approximate Energy Efficiency: Equivalent to 2012 IECC

Effective Date: Aug. 04, 2016

Code Enforcement: MandatoryCurrent Code: 2006 IECC

Approximate Energy Efficiency: Equivalent to 2006 IECC

Effective Date: Jul. 01, 2011

Code Enforcement: Mandatory

Texas

Current Code: 2015 IECC

Approximate Energy Efficiency: Equivalent to 2015 IECC

Effective Date: Nov. 01, 2016

Code Enforcement: MandatoryCurrent Code: 2015 IECC with Amendments

Approximate Energy Efficiency: Equivalent to 2015 IECC

Effective Date: Sep. 01, 2016

Code Enforcement: Mandatory

U.S. Virgin Islands

Current Code: 2009 IECC

Approximate Energy Efficiency: Equivalent to 2009 IECC

Effective Date: Jul. 01, 2009

Code Enforcement: MandatoryCurrent Code: 2009 IECC

Approximate Energy Efficiency: Equivalent to 2009 IECC

Effective Date: Jul. 01, 2009

Code Enforcement: Mandatory

Utah

Current Code: 2015 IECC

Approximate Energy Efficiency: Equivalent to 2015 IECC

Effective Date: Jul. 01, 2016

Code Enforcement: MandatoryCurrent Code: 2015 IECC with Amendments

Approximate Energy Efficiency: Less energy efficient than 2015 IECC

Effective Date: Jul. 01, 2016

Code Enforcement: Mandatory

Vermont

Current Code: State Specific

Approximate Energy Efficiency: Equivalent to 2015 IECC

Effective Date: Mar. 01, 2015

Code Enforcement: MandatoryCurrent Code: State Specific

Approximate Energy Efficiency: Equivalent to 2015 IECC

Effective Date: Mar. 01, 2015

Code Enforcement: Mandatory

Virginia

Current Code: 2012 IECC with Amendments

Approximate Energy Efficiency: Equivalent to 2012 IECC

Effective Date: Jul. 14, 2014

Code Enforcement: MandatoryCurrent Code: 2012 IECC with Amendments

Approximate Energy Efficiency: Less energy efficient than 2012 IECC

Effective Date: Jul. 14, 2014

Code Enforcement: Mandatory

Washington

Current Code: State Specific

Approximate Energy Efficiency: Equivalent to 2015 IECC

Effective Date: Jul. 01, 2016

Code Enforcement: MandatoryCurrent Code: State Specific

Approximate Energy Efficiency: Equivalent to 2015 IECC

Effective Date: Jul. 01, 2016

Code Enforcement: Mandatory

Washington, DC

Current Code: 2012 IECC with Amendments

Approximate Energy Efficiency: Equivalent to 2012 IECC

Effective Date: Mar. 28, 2014

Code Enforcement: MandatoryCurrent Code: 2012 IECC with Amendments

Approximate Energy Efficiency: Less energy efficient than 2012 IECC

Effective Date: Mar. 28, 2014

Code Enforcement: Mandatory

West Virginia

Current Code: ASHRAE Standard 90.1-2007

Approximate Energy Efficiency: Equivalent to ASHRAE 90.1-2007

Effective Date: Sep. 01, 2013

Code Enforcement: MandatoryCurrent Code: 2009 IECC

Approximate Energy Efficiency: Equivalent to 2009 IECC

Effective Date: Nov. 30, 2013

Code Enforcement: Mandatory

Wisconsin

Current Code: State Specific

Approximate Energy Efficiency: Equivalent to 2009 IECC

Effective Date: Sep. 01, 2011

Code Enforcement: MandatoryCurrent Code: 2009 IECC with Amendments

Approximate Energy Efficiency: Equivalent to 2009 IECC

Effective Date: Jan. 01, 2016

Code Enforcement: Mandatory

Wyoming

Current Code: None Statewide

Approximate Energy Efficiency: Less energy efficient than 2003 IECC

Effective Date: Aug. 13, 2008

Code Enforcement: Voluntary
Current Code: None Statewide

Approximate Energy Efficiency: Less energy efficient than 2003 IECC

Effective Date: Aug. 13, 2008

Code Enforcement: Voluntary