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Document type: State-specific
Publication Date: September 2012
Focus: Compliance, Enforcement

This Guide is designed to assist state and local code jurisdictions in achieving statewide compliance with the 2009 International Energy Conservation Code (IECC) for residential buildings and ANSI/ASHRAE/IESNA Standard 90.1-2007 for commercial buildings.

Document type: State-specific
Publication Date: May 2013
Focus: Adoption

In response to the U.S. Department of Energy's July 20, 2011 notice of determination in the Federal Register regarding ANSI/ASHRAE/IESNA Standard 90.1-2007, Alabama certifies that it has reviewed and adopted the provisions of its Alabama Energy and Residential Code to include the requirement for non-state-funded buildings to comply with the 2009 International Energy Conservation Code, and by reference ASHRAE 90.1-2007.

Document type: State-specific
Publication Date: May 2013
Focus: Adoption

In response to the U.S. Department of Energy's July 20, 2011 notice of determination in the Federal Register regarding the 2009 International Energy Conservation Code, Alabama certifies that it has reviewed and adopted the provisions of its Alabama Energy and Residential Code to include the requirement for residential buildings to comply with the 2009 International Residential Code, including the Energy Chapter with amendments.

Document type: State-specific
Publication Date: March 2011
Focus: Adoption

This document is a list of Alaska-specific amendments to the 2009 International Energy Conservation Code, adopted by the Alaska Housing Finance Corporation (AHFC) on March 9, 2011. It is meant to be read in conjunction with the 2009 IECC and ASHRAE Standard 62.2-2010 which may be purchased at local bookstores or online. These amendments comprise both the residential and commercial Building Energy Efficiency Standards (BEES) for AHFC-funded residential mortgage loans and energy rebates, and energy retrofits of public buildings. These amendments supplant the BEES amendments to the 2006 IECC for residential projects as adopted on June 17, 2009, and include the amendments previously made to the 2009 IECC known as the “Commercial BEES.”

Document type: Comparison, State-specific, Technical Assistance report
Publication Date: August 2005
Focus: Adoption

This study was undertaken for the Arizona Department of Commerce, who requested the U.S. Department of Energy (DOE) provide technical assistance with regard to identifying the major differences in the model energy codes as they might be applied to various locations in Arizona. This study focuses upon the requirements for commercial (non-residential) buildings in these codes. In both codes, “commercial” buildings include high-rise multi-family buildings as well as traditional “commercial” occupancies such as offices, retail buildings, and assembly buildings.

Document type: State-specific
Publication Date: August 2013
Focus: Adoption

The State of Arizona, based on the demonstrated adoption and enforcement of the International Energy Conservation Code adn ASHRAE 90.1-2007 at the local jurisdiction level, is on track to meet the intent of the compliance requirements of Title III of the Energy Conservation and Production Act of 1976, as amended concerning energy codes.

Document type: State-specific
Publication Date: June 2013
Focus: Adoption

In compliance with Title III of the Energy Conservation and Production Act (ECPA) of 1976, as amended, this is to certify that the State of Arkansas has adopted the Arkansas Energy Code for New Building Construction Supplements and Amendments for 2011, which references the 2003 version of the International Energy Conservation Code (IECC) for low-rise residential buildings, as well as ASHRAE 90.1-2007 for nonresidential buildings.

Document type: State-specific
Publication Date:
Focus: Adoption

In an effort to provide high levels of continuing energy code support to Colorado’s 329 code jurisdictions, the Governor’s Energy Office commissioned an independent survey to better understand the types of code assistance desired. The survey was conducted by the International Codes Council between October and December 2008. The collected responses from 174 of Colorado’s code jurisdictions are presented in this report.

Document type: Analysis, State-specific
Publication Date:
Focus: Adoption

The purpose of the Colorado Gap Analysis Report is twofold: 1) document and analyze the strengths and weaknesses of the state’s existing energy code adoption and implementation infrastructure and policies; and 2) recommend potential actions state agencies, local jurisdictions, and other stakeholders can take to achieve 100% compliance with the model energy codes.

Document type: State-specific
Publication Date: July 2013
Focus: Adoption

The State of Colorado provides the following information to certify compliance with Title III of the Energy Conservation andProduction Act (ECPA) of 1976, as amended. As the U.S. Department of Energy (DOE) recognizes, the State of Colorado, as a long-term "home-rule" state has no statewide jurisdiction for the adoption and compliance with the International Energy Conservation Code (IECC) and ASHRAE 90.1-2007 at the local jurisdiction level. However, the State of Colorado, based on the demonstrated adoption and enforcement of the 2009 IECC and ASHRAE 90.1-2007 at the local jurisdiction level, fully meets the intent of the compliance requirements of the ECPA concerning energy codes.

In addition, the State of Colorado., within its jurisdictional authority, ahs adopted the 2012 IECC for low-rise residential buildings, as well as ASHRAE Standard 90.1-2010 for nonresidential buildings.

Document type: State-specific
Publication Date: July 2013
Focus: Adoption

The purpose of this letter is to document that the State of Connecticut has met its stautory requirement with regard to adoption of energy codes that meet or exceed the 2009 International Energy Conservation Code for residential buildings and ASHRAE Standard 90.1-2007 for commercial buildings.

Document type: State-specific
Publication Date: July 2013
Focus: Adoption

In compliance with Title III of the Energy Conservation and Production Act of 1976, as amended, this is to certify that the State of Delaware has adopted the International Energy Conservation Code (IECC) for low-rise residential buildings, along with the ASHRAE 90.1-2007 for commercial buildings adn all other residential buildings not covered under the IECC 2009.

Document type: State-specific
Publication Date: June 2009
Focus: Adoption

This study was commissioned by the Florida Department of Community Affair’s Codes & Standards Section to determine the impacts of Florida’s Energy Code over time and recommend possible changes that would increase residential efficiency. It examines each of the 15 residential energy code cycles that have occurred during the 30-year period from 1979 to 2009, and determines the relative change in energy code efficiency and its impact on energy use and energy cost throughout the period. The study has been revised to include Florida’s 2009 supplement to its 2007 energy code to determine how its requirements compare with the requirements of Section 405 of the 2009 International Energy Conservation Code. Florida’s energy code compliance software, EnergyGauge® USA, is used to conduct annual, hourly simulations and analysis of 180 different home configurations. These results are combined with Florida’s historical energy cost data and new...

Document type: State-specific
Publication Date: August 2012
Focus: Adoption

In compliance with Title III of the Energy Conservation and Production Act of 1976, as amended, the Florida Building Commission, which has statutory authority to administer the Florida Building Code (s. 553.72(3), Florida Statutes), hereby certifies that Chapter 5 of the 2010 Florida Building Code, Energy Conservation, meets or exceeds ASHRAE Standard 90.1-2007, Energy Standard for Buildings, Except Low-Rise Residential Buildings for buildings other than low-rise residential.

Document type: State-specific
Publication Date: July 2013
Focus: Adoption

The Florida Building Commission, which has statutory authority to administer the Florida Building Code (s. 553.72(3), Florida Statutes), hereby certifies that Chapter 4 of the 2010 Florida Building Code, Energy Conservation meets or exceeds the 2009 edition of the International Energy Conservation Code for low-rise residential buildings. 

Document type: State-specific
Publication Date:
Focus: Adoption

The following codes are hereby adopted for the state of Idaho Division of Building Safety and shall only be applied by local governments as prescribed by section 39-4116, Idaho Code:(a) The 2006 International Building Code shall be in effect, until such time as a subsequent version is adopted by the Idaho building code board, at which time the subsequent versions of the International Building Code as adopted and amended by the Idaho building code board through the negotiated rulemaking process as established in section 67-5221, Idaho Code, and as further provided in subsection (5) of this section and in accordance with subsections (2) and (3) herein shall be in effect.

Document type: State-specific
Publication Date:
Focus: Adoption

This document serves as an example for cities or counties within Idaho to use when creating model building code ordinances.

Document type: State-specific
Publication Date:
Focus: Adoption

Title 39, Chapter 41, "Idaho Building Code Act" (§ 39-4101) of the Idaho Statutes and Administrative Rules authorizes the state division of building safety and local governments to adopt and enforce building codes pursuant to the provisions of this chapter.

Document type: State-specific, Technical Assistance report
Publication Date: January 2007
Focus: Adoption

As of the writing of this report, the state of Illinois does not have a statewide building energy efficiency code for residential buildings, although a number of jurisdictions in Illinois have adopted the 2000 International Energy Conservation Code (IECC) or the 2003 IECC.


The U.S. Department of Energy requested Pacific Northwest National Laboratory estimate the energy savings, economic impacts, and pollution reduction from adopting the 2006 IECC. This report addresses the impacts for low-rise residential buildings only.

Document type: State-specific, Technical Assistance report
Publication Date: September 2002
Focus: Adoption

This study includes the impacts of adopting only the building envelope and lighting requirements of ASHRAE Standard 90.1-1999 and applying it only to new commercial construction. This report builds on a previous study that uses prototypical office, retail, and education buildings to estimate life-cycle cost savings estimates per square foot. Office, retail, and education buildings made up over 60% of the total value of new commercial construction in Illinois in 1997.

Document type: State-specific, Technical Assistance report
Publication Date: April 2004
Focus: Adoption

This report is an update of a previous report, Statewide Savings Projections from the Adoption of a Commercial Building Energy Code in Illinois, completed in September 2002. This updated version incorporates the most recent—as of the writing of this report—gas and electric rates into the analysis.


The results of this analysis suggest that adopting and enforcing a commercial building energy code throughout the state of Illinois could produce substantial energy and cost savings, while reducing emissions of greenhouse gases.

Document type: State-specific
Publication Date: September 2013
Focus: Adoption

In compliance with Title III of the Energy Conservation and Production Act (ECPA) of 1976, as amended, this is to certify that the State of Illinois has adopted the Illinois Energy Conservation Code, which consists of the 2012 version of the International Energy Conservation Code (IECC) for low-rise residential buildings (with Illinois specific amendments), as well as ASHRAE Standard 90.1-2010 for nonresidential buildings.

Document type: State-specific, Technical Assistance report
Publication Date: September 2009
Focus: Adoption

This nationwide analysis of commercial energy code compares ASHRAE Standard 90.1-2007 with the commercial code in each state as of June 2009. The results are provided in chapters specific to each state.

States with unique energy codes were not included in the analysis because the codes in these states would be difficult to appropriately compare to ASHRAE Standard 90.1 and most of these states have energy offices that routinely assess their codes against the model codes. In states with codes prior to and including the 2000 IECC or Standard 90.1-1999, those states with no statewide energy code, and home rule states which did not specifically request that another code be used, Standard 90.1-1999 was used as the baseline for comparison.

Three DOE Benchmark buildings were used for the simulation used in this analysis: a medium office building (53,600 ft2), a mid-rise apartment building (33,700 ft2), and a non-refrigerated warehouse (49,500 ft2...

Document type: State-specific, Technical Assistance report
Publication Date: September 2009
Focus: Adoption

This analysis of residential energy code compares the requirements of the 2009 International Energy Conservation Code (IECC) with the residential code—or typical construction practice in the absence of a code—in most states as of June 2009. The results, which include estimated typical energy savings of updating each state’s code to the 2009 IECC, are provided in chapters specific to each state.

Several states have either not adopted a mandatory energy code or developed their own codes which have minimal or no connection to the IECC. The latter—including California, Florida, Oregon, and Washington— were not included in this analysis because the codes in these states would be difficult to appropriately compare to the 2009 IECC and most of these states have energy offices that have already assessed the IECC on their own.

Document type: State-specific
Publication Date:
Focus: Adoption

The 2009 International Energy Conservation Code, was adopted by reference as the residential energy code of the state of Iowa building code, applicable to residential construction limited to three or fewer stories throughout the state of Iowa, with the amendments outlined in this document.

Document type: State-specific, Technical Assistance report
Publication Date: October 2003
Focus: Adoption

Iowa’s Department of Natural Resources requested that the U.S. Department of Energy (DOE) compare the 1992 Model Energy Code with the 2003 International Energy Code to estimate impacts from updating Iowa's residential energy code to comply with the new code. Under DOE's direction, Pacific Northwest National Laboratory (PNNL) completed an assessment of the impacts from this potential code upgrade, including impacts on construction and energy consumption costs. This report is an update to a similar report completed by PNNL in 2002 that compared the 1992 MEC to the 2000 IECC.

Document type: State-specific
Publication Date: January 2011
Focus: Adoption

One of the main objectives of the Iowa Commission on Energy Efficiency Standards and Practices was to develop recommendations regarding energy efficiency standards for the construction of buildings, incentives to promote energy efficient construction projects, and recommendations regarding the implementation of a building labeling/ rating system for energy efficient buildings. These recommendations represent actions that can be taken to promote energy efficient standards and practices to reduce energy usage and associated building operating costs.

Document type: State-specific
Publication Date: November 2010
Focus: Adoption

On January 3, 2011 the Iowa Department of Public Safety, Division of State Fire Marshal, increased the scope of its energy code plan review. The State Building Code Bureau was awarded a Community Development Block Grant through the U.S. Department of Energy to fund two positions to aid in the enforcement of the State Energy Code. These positions develop energy code enforcement tools and provide energy code outreach to local jurisdictions.

Document type: State-specific
Publication Date: March 2010
Focus: Adoption

This form is to be used by Iowa registered architects and licensed professional engineers to show compliance with Iowa Code 103A.19 and Administrative Rule 661-303.1(3), in the design of buildings which are subject to this law.

Document type: State-specific
Publication Date:
Focus: Adoption

The Iowa state building code commissioner, with the approval of the advisory council, formulates, adopts, amends and/or revises and promulgates reasonable rules designed to establish minimum safeguards in building construction, and establishes regulations to protect the health, safety, and welfare of the public.

Document type: State-specific
Publication Date: September 2012
Focus: Compliance, Enforcement

This Guide is designed to assist state and local code jurisdictions in achieving statewide compliance with the 2006 International Energy Conservation Code (IECC) for residential buildings and ASHRAE Standard 90.1-2007 for commercial buildings.

Document type: State-specific
Publication Date: July 2013
Focus: Adoption

The State of Iowa has adopted the residential energy code requirements of the 2009 International Energy Conservation Code (IECC), effective as of 01/01/10 (Iowa Administrative Code 661 - Chaper 303.2 with reference to Iowa Code section 103A). Iowa has adopted the commercial energy code requrements of the 2009 IECC, effective as of 01/01/10 (Iowa Administrative Code 661 - Chaper 303.3 with reference to Iowa Code section 103A).  ASHRAE Standard 90.1 is adopted by reference for the commercial part of the code in Section 501.2 of the 2009 IECC.

Document type: State-specific
Publication Date: July 2013
Focus: Adoption

In compliance with Title III of the Energy Conservation adn Production Act (ECPA) of 1976, as amended, this is to certify that the Commonwealth of Kentuchy has adopted by reference the 2009 version of the International Energy Conservation Code (IECC) afor low-rise residential builidings, as well as ASHRAE Standard 90.1-2007 for non-residential buildings (by virtue of its reference within the 2009 IECC).

Document type: State-specific, Technical Assistance report
Publication Date: December 2006
Focus: Adoption

At the request of the Government Accountability Office, The U.S. Department of Energy's Building Energy Codes Program (BECP) undertook an analysis of the energy savings and cost impacts associated with the use of newer and more efficient commercial building energy codes in the states of Louisiana and Mississippi. BECP looked at three levels of energy standards – ASHRAE Standard 90-75, ASHRAE 90.1-2001, and ASHRAE Standard 90.1-2004 – that cover both the full range of standards currently on the books in Louisiana and Mississippi and the logical next standards for these states.

Document type: State-specific, Technical Assistance report
Publication Date: January 2007
Focus: Adoption

At the request of the Government Accountability Office, the U.S. Department of Energy's Building Energy Codes Program undertook an analysis of the energy savings and cost impacts associated with the use of newer and more efficient residential building energy codes in the states of Louisiana and Mississippi.


The intent of this analysis is to determine the potential energy and economic impacts from improved energy efficiency alternatives available for residential buildings during the reconstruction process after Hurricane Katrina.

Document type: State-specific
Publication Date: October 2009
Focus: Adoption

The Maine Legislature enacted the Uniform Building and Energy Code (PL 2007, Chapter 699 and amendments PL 2009, Chapter 261). This document provides some answers to frequently-asked questions about the code.

Document type: State-specific
Publication Date: July 2013
Focus: Adoption

The State of Maine has adopted building codes for energy efficiency; they are included in the Maine Uniform Building and Energy Code (MUBEC). The State of Maine has adopted the 2009 International Energy Conservation Code, as well as ASHRAE Standard 90.1-2007.  The 2009 IECC is required; ASHRAE Standard 90.1-2007 is included as part of MUBEC, but compliance is not mandatory.

Document type: State-specific
Publication Date: July 2013
Focus: Adoption

By legislation, the Maryland Building Performance Standards (MPBS) which was adopted in 1994 is updated every three years to coincide with the International Code Council (ICC) change cycle, as the ICC updates their I-codes. The MBPS adopted the 2012 International Energy Conservation Code and ASHRAE 90.1-2010 on January 1, 2012. Maryland legislation requires the State of Maryland to adopt the first printing of the latest International Building Code, International Residential Code and the International Energy Conservation Code within one year of publication by the ICC.

Document type: State-specific
Publication Date: January 2010
Focus: Adoption

In accordance with the statutory requirements of the Green Communities Act, the Board of Building Regulations and Standards amended the Massachusetts Building Code as of January 1, 2010, requiring the use of the 2009 International Energy Conservation Code with Massachusetts amendments.

Document type: State-specific
Publication Date:
Focus: Adoption

780 CMR: MASSACHUSETTS AMENDMENTS TO THE INTERNATIONAL BUILDING CODE 2009: Buildings in the state of Massachusetts shall be designed and constructed in accordance with the 2009 International Energy Conservation Code with Massachusetts Amendments as described in this document:.

Document type: State-specific
Publication Date: July 2013
Focus: Adoption

The Massachusetts Board of Building Regulations and Standards (BBRS) in consultation with the Deparment of Energy Resources has amended the Massachusetts statewide building code in line with the recommendations of the Department of Energy on the following occasions:

On October 17, 2008, the ASHRAE Standard 90.1-2007 was adopted as chapter thirteen of the amended Massachusetts seventh edition building energy code.

On Jauary 1, 2010, the IECC 2009 was adopted and by direct reference the ASHRAE Standards 90.1-2007 was maintained in the amended Massachusetts seventh edition building energy code.

 

Document type: State-specific
Publication Date: November 2010
Focus: Adoption

Rules governing the energy efficiency for the design and construction of buildings and structures, not including residential buildings, shall be those contained in the 2009 International Energy Conservation Code (IECC), section 501.1 and ASHRAE Standard 90.1-2007, including appendices A, B, C, and D. With the amendments noted, Section 501.1 of the IECC and ASHRAE Standard 90.1-2007 are adopted in these rules by reference.

Document type: State-specific
Publication Date: July 2013
Focus: Adoption

The State of Michigan adopted the 2009 International Energy Conservation Code for residential construction, which became effective March 9, 2011.

The State of Michigan adopted the ASHRAE 90.1-2007 standard for commercial construction, which became effective March 9, 2011.

Document type: State-specific
Publication Date: July 2013
Focus: Adoption

In compliance with Title III of the Energy Conservation and Production Act (ECPA) of 1976, as amended, this is to certify that the State of Mississippi has adopted teh ASHRAE Standard 90.1-2010 for non-residential buildings.

Document type: State-specific
Publication Date: July 2013
Focus: Adoption

In reference to Title III of the Energy Conservation and Production Act (ECPA) of 1976, as amended, this letter serves to certify the State of Mississippi's request for an extension of time to adopt a residential energy code which is equivalent to the 2009 version of the International Energy Conservation Code for low-rise residential buildings.

Document type: State-specific, Technical Assistance report
Publication Date: March 2007
Focus: Adoption

At the request of the Montana Energy Office, the U.S. Department of Energy’s Building Energy Codes Program undertook an analysis of the energy savings associated with slab insulation in small commercial buildings.

Document type: State-specific
Publication Date:
Focus: Adoption

In compliance with Title III of the Energy Conservation and Production Act (ECPA) of 1976, as amended, this letter is to certify that the State of Nebraska has updated the Nebraska Enery Code, which references the 2009 version of the International Energy Conservation Code, as well as ASHRAE Standard 90.1-2007 for non-residential buildings.

Document type: State-specific
Publication Date: September 2012
Focus: Compliance, Enforcement

This Guide is designed to assist state and local code jurisdictions in achieving statewide compliance with the 2009 International Energy...

Document type: State-specific
Publication Date: June 2013
Focus: Adoption

In response to the U.S. Department of Energy's July 20, 2011 notice of determination in the Federal Register regarding ANSI/ASHRAE/IESNA 90.1-2007, the State of Nevada certifies that it has reviewed the provisions of Nevada's building energy codes and has adopted the 2009 International Energy Conservation Code (IECC) with reference to ASHRAE 90.1-2007 as the statewide minimum standard for commercial buildings, effective July 1, 2012.

Document type: State-specific
Publication Date: June 2013
Focus: Adoption

In response to the U.S. Department of Energy's July 19, 2011 notice of determination in the Federal Register regarding the 2009 International Energy Conservation Code (IECC), the State of Nevada certifies that it has reviewed the provisions of Nevada's residential energy codes; conducted a regulation workshop and three regulation hearings to seek public comment as required pursuant to Nevada Revised Statute (NRS); and has adopted the 2009 IECC as the statewide minimum standard, effective July 1, 2012.

Document type: State-specific
Publication Date:
Focus: Adoption

Residential energy code application for certification of compliance for new construction, additions or renovations.

Document type: State-specific
Publication Date: July 2013
Focus: Adoption

The New Hampshire Office of Energy and Planning hereby certifies that the State of New Hampshire has a residential building energy code that meets the requirements of the 2009 IECC, and a commercial building energy code that meets ASHRAE 90.1-2007.

Document type: State-specific
Publication Date: August 2011
Focus: Adoption

In compliance with the Title III of the Energy Conservation and Production Act of 1976, as amended, this document certifies that the state of New Jersey has adopted the 2009 International Energy Conservation Code (IECC) for low-rise residential buildings, along with ASHRAE Standard 90.1-2007 for commercial buildings and all other residential buildings not covered under the 2009 IECC.

Document type: State-specific, Technical Assistance report
Publication Date: January 2003
Focus: Adoption

This paper presents an assessment of the energy savings and economic impact for New Mexico to adopt the 2000 International Energy Conservation Code. As of the writing of this report, the state of New Mexico bases its commercial building energy code on the 1986 Model Energy Code, which in turn references ASHRAE Standard 90a-1980 for the commercial building portion of the energy code.

Document type: State-specific
Publication Date: July 2013
Focus: Adoption

This letter certifies New Mexico's compliance with the Energy Conservation and Production Act of 1976 (ECPA), as amended . The State of New Mexico has adopted the New Mexico Energy Conservation Code, which references the 2009 version of the International Energy Conservation Code with amendments for residential buildings as well as ASHRAE Standard 90.1-2007 for commercial buildings.

Document type: State-specific, Technical Assistance report
Publication Date: August 2007
Focus: Adoption

At the request of the New York State Energy Research and Development Authority and New York State Department of State, the U.S. Department of Energy's Building Energy Codes Program undertook an analysis of the energy savings and cost impacts associated with the proposed adoption of ASHRAE Standard 90.1-2004, and compared it with the requirements based on ASHRAE Standards 90.1-1999 and 90.1-2001.

Document type: State-specific, Technical Assistance report
Publication Date: April 2004
Focus: Adoption

The state of New York asked the U.S. Department of Energy to evaluate the cost-effectiveness of the requirement for heat recovery for service water heating that exists in the 2003 International Energy Conservation Code to determine whether this requirement should be adopted into the New York State Energy code.

Document type: State-specific, Technical Assistance report
Publication Date: September 2004
Focus: Adoption

The New York State Department of State requested the U.S. Department of Energy (DOE) compare the effects on energy usage as a result of implementation of the 2004 Supplement to the International Energy Conservation Code with the current New York code. The comparison had to determine whether additional costs of compliance with the proposal would be equal to or less than the present value of anticipated energy cost savings over a 10-year period. Under DOE's direction, Pacific Northwest National Laboratory completed the requested assessment of the potential code upgrade.

Document type: State-specific, Technical Assistance report
Publication Date: June 2009
Focus: Adoption

The state of New York requested that the U.S. Department of Energy's (DOE's) Building Energy Codes Program (BECP) provide an analysis of the impacts of adoption of ASHRAE Standard 90.1-2007. New York State is unique among states in requiring a ten-year payback for energy code measures. BECP based this analysis on the results of a nationwide, state-by-state code comparison for DOE. This analysis indicates that the adoption of ASHRAE Standard 90.1-2007 is cost-effective under New York’s requirements for all buildings in New York.

Document type: State-specific, Technical Assistance report
Publication Date: June 2004
Focus: Adoption

The state of New York asked the U.S. Department of Energy to analyze the potential energy effect and cost-effectiveness of the lighting requirements in the 2003 International Energy Conservation Code as they consider adoption of this energy code. The new provisions of interest in the lighting section of the 2003 IECC include new lighting power densities and requirements for automatic lighting shutoff controls.

Document type: State-specific
Publication Date: July 2013
Focus: Adoption

In compliance with Title III of the Energy Conservation and Production Act (ECPA) of 1976, as amended, this is to certify that the State of New York has adopted the 2010 edition of the Energy Conservation Construction Code of New York State (the "2010 ECCCNYS") as New York State's building energy code for residential buildings and non-residential (commercial) buildings.

With regard to residential buildings, the 2010 ECCCNYS is based on, and is equivalent to or more stringent than, the 2009 version of the International Energy Conservation Code.

With regard to commercial buildings, the 2010 ECCCNYS is equivalent to or more stringent than ASHRAE 90.1-2007.

Document type: Reports and Studies, State-specific
Publication Date: March 2000
Focus: Adoption

This study focuses on verifying that buildings are designed and built to comply with the energy code requirements. The goal of the recommended program is to collect sufficient information to describe construction characteristics and practices related to energy efficiency in new residential and non-residential construction in a representative sample of North Carolina city and county code jurisdictions.

Document type: State-specific
Publication Date: July 2013
Focus: Adoption

In response to the U.S. Department of Energy's July 20, 2011 notice of determination in the Federal Register, North Carolina certifies that it has reviewed and updated the provisions of the 2012 North Carolina Energy Conservation Code governing commercial building energy efficiency to meet or exceed the requirements of ASHRAE Standard 90.1-2007.  An amendment was later adopted that will require compliance with ASHRAE Standard 90.1-2010, effective January 1, 2015.

Document type: State-specific
Publication Date: July 2013
Focus: Adoption

In response to the U.S. Department of Energy's July 19, 2011 notice of determination in the Federal Register, North Carolina certifies that it has reviewed and updated the provisions of the 2012 North Carolina Energy Conservation Code governing residential building energy efficiency to meet or exceed the requirements of the 2009 Internation Energy Conservation Code. 

Document type: State-specific, Technical Assistance report
Publication Date: April 2004
Focus: Adoption

This report evaluates the potential costs and benefits to North Dakota residents from updating and requiring compliance with ASHRAE Standard 90.1-2001.

Document type: State-specific
Publication Date: July 2013
Focus: Adoption

The Board conducted public hearings on November 13, 2009 and January 21, 2011 on proposed updates to the Ohio Building Code including updating the referenced ASHRAE 90.l Standard from the 2004 to the 2007 edition. The Board subsequently adopted these updates effective November 1, 2011 for all new nonresidential construction in Ohio.

The Residential Construction Advisory Committee recommended to the Board that it update the referenced IECC Standard from the 2006 to the 2009 edition, adopt the Ohio Home Builders Association Prescriptive Energy Code Option, and adopt the International Residential Code Chapter 11 requirements with U.S. Department of Energy recommended changes to achieve energy efficiency equivalency to the 2009 IECC as all valid options for energy code compliance in Ohio. The Board accepted the recommendations of the RCAC and conducted a public hearing on these and other updates to the Residential Code of Ohio on April 26, 2012. The Board subsequently adopted...

Document type: State-specific
Publication Date:
Focus: Adoption

National codes and standards are incorporated by reference.

Document type: State-specific
Publication Date:
Focus: Adoption

This document outlines the organization and division of the Oklahoma Uniform Building Code Commission.

Document type: State-specific
Publication Date: December 2008
Focus: Adoption

Para-Technical's checklist for the Oregon code adoption process.

Document type: State-specific
Publication Date:
Focus: Adoption, Commercial, Residential

The Building Codes Division, part of the Department of Consumer and Business Services, enforces the building code to protect the public and prevent unsafe construction work. Oregon has one statewide building code providing a uniform, consistent and predictable process for Oregon’s construction industry, the public, and state and local government.
Oregon’s building code is applicable in all cities and counties and is enforced locally across the state. The Division provides code enforcement in areas of the state where the local jurisdiction does not.

Document type: State-specific
Publication Date: June 2013
Focus: Adoption

In compliance with Title III of the Energy Conservation and Production Act (ECPA) of 1976, as amended, this is to certify that the State of Oregon has adopted the 2010 Oregon Energy Efficiency Specialty Code, which is equivalent to ASHRAE 90.1-2010 for non-residential structures. The State of Oregon has adopted the  2011 Residential Energy Efficiency Specialty Code with energy provisions exceeding those of the 2009 International Energy Conservation Code (IECC) for low-rise residential buildings.

Document type: State-specific, Technical Assistance report
Publication Date: February 2001
Focus: Adoption

The Pennsylvania Housing Research Center (PHRC) has created a proposed alternative path for complying with the energy efficiency provisions of the2000 International Energy Conservation Code (IECC) or the 2000 International Residential Code (IRC) for residential buildings. The Pennsylvania Department of Labor and Industry requested that the U.S. Department of Energy (DOE) evaluate the PHRC proposal to determine whether it meets or exceeds the energy efficiency requirements of the IECC. Under DOE's direction, Pacific Northwest National Laboratory reviewed and assessed the PRHC proposal.

Document type: State-specific
Publication Date: September 2009
Focus: Adoption

In November 1999, the Pennsylvania Legislature passed ACT 45, known as the Uniform Construction Code, into law mandating a statewide building code across Pennsylvania. Act 45 requires the Pennsylvania Department of Labor and Industry (DLI) to promulgate regulations to implement the requirements of the legislation and, in addition, to consider the development of alternative prescriptive methods for energy conservation that account for the various climatic regions within the Commonwealth. In deriving these energy standards, the DLI was to seek to balance energy savings with initial construction costs.

Document type: State-specific
Publication Date: July 2013
Focus: Adoption

In accordance with the provisions of Section 304(a) of the Energy Conservation and Production Act (ECPA), as amended, this is to certify that the Commonwealth of Pennslyvania has adopted the 2009 International Energy Conservation Code (IECC) and, by reference, ASHRAE 90.1-2007.

Document type: Reports and Studies, State-specific
Publication Date: September 2013
Focus: Adoption

Are there advantages to states that adopt the most recent model building energy codes other than saving energy? For example, can the construction activity and energy savings associated with code-compliant housing units become significant sources of job creation for states if new building energy codes are adopted to cover residential construction? The U.S. Department of Energy (DOE) Building Energy Codes Program (BECP) asked Pacific Northwest National Laboratory (PNNL) to research and ascertain whether jobs would be created in individual states based on their adoption of model building energy codes.

Document type: Reports and Studies, State-specific
Publication Date: November 2013
Focus: Adoption

House Bill 202, which was passed during the 2013 Legislative Session, adopted a hybrid version of the 2006, 2009 and 2012 International Energy Conservation Code (IECC) in Utah (“Utah 2012”) for residential buildings and the complete 2012 IECC for commercial buildings. The Utah 2012 and IECC 2012 commercial provisions take effect after the Uniform Building Code Commission certifies in writing to the Utah Legislature that the U.S. Department of Energy (DOE) has adopted a version of REScheck software that can be used to verify compliance with the provisions in H.B. 202.

Document type: State-specific
Publication Date: July 2013
Focus: Adoption

In compliance with Title III of the Energy Conservation and Production Act (ECPA) of 1976, as amended, this is to certify that the State of Rhode Island has adopted the Rhode Island Energy Conservation Code, which references ICC International Energy Conservation Code the 2012 version of the International Energy Conservation Code (IECC) for low-rise residential buildings, as well as ASHRAE Standard 90.1-2010 for nonresidential buildings. The code became effective on July 1, 2013.

Document type: State-specific
Publication Date: July 2013
Focus: Adoption

In accordance with the U.S. Department of Energy's determinations on the 2009 IECC and ASHRAE 90.1-2007, the State of South Carolina is submitting its statutorialy required certification that we have reviewed adn adopted both referenced codes.

Document type: State-specific
Publication Date:
Focus: Adoption

The Tennessee State Fire Marshal’s Office will implement enforcement of adopted energy codes for new building project submissions as of Friday, July 1, 2011. The energy codes adopted are:

  • All buildings other than state buildings: The 2006 International Energy Conservation Code
  • State buildings: ASHRAE Standard 90.1-2007.
Document type: State-specific
Publication Date: July 2013
Focus: Adoption

The State of Tennessee, Department of Commerce and Insurance, Division of Fire Prevention certifies that it has adopted the 2006 International Energy Conservation Code (IECC) for one and two family dwellings and townhouses and non-State owned commercial buildings, and ASHRAE 90.1-2007 for State Buildings.

Document type: State-specific, Technical Assistance report
Publication Date: September 2005
Focus: Adoption

In 2001, the State of Texas adopted the 2001 International Energy Conservation Codes as its statewide commercial building energy code standard. this report examines the potential impacts of updating lighting requirements in Texas the 2003 IECC.

Document type: State-specific
Publication Date: June 2013
Focus: Adoption

The Texas State Energy Conservation Office, which has the statutory authority to adopt the latest energy codes in Texas, asdopted the 2009 IECC effective April 1, 2011 for all commercial and residential buildings greater than three stories.

Document type: State-specific, Technical Assistance report
Publication Date: May 2009
Focus: Adoption

An analysis by Pacific Northwest National Laboratory show that the 2009 International Energy Conservation Code (IECC) contains several major improvements in energy efficiency over the current Utah code, the 2006 IECC. The most notable changes are improved duct sealing and efficient lighting requirements. A limited analysis of these changes resulted in estimated savings of $168 to $188 for an average new house in Utah at recent fuel prices.

Document type: State-specific
Publication Date: July 2013
Focus: Adoption

2012 IECC Chapter 4, annotated with Utah's amendments.

Document type: State-specific
Publication Date: September 2012
Focus: Compliance, Enforcement

This Guide is designed to assist state and local code jurisdictions in achieving statewide compliance with the 2006 International Energy Conservation Code (IECC) for residential buildings and ASHRAE Standard 90.1-2007 for commercial buildings.

Document type: State-specific
Publication Date: July 2013
Focus: Adoption

In compliance with Title III of the Energy Conservation and Production Act (ECPA) of 1976, as amended, this is to certify that the State of Washington has adopted the 2012 Edition, Washington State Energy Code, which meets or exceeds the 2012 version of the International Energy Conservation Code (IECC) for low-rise residential buildings, as well as ASHRAE 90.1-2010 for nonresidential buildings.

Document type: State-specific
Publication Date: July 2013
Focus: Adoption

In compliance with Title III of the Energy Conservation adn Production Act of 1976, as amended, this is to certify that the District of Columbia has taken the appropriate actions as listed to meet the statutory requirements related to the Department of Energy (DOE) determinations for the 2009 International Energy Conservation Code (IECC) and ASHRAE 90.1-2007/

Document type: State-specific, Technical Assistance report
Publication Date: December 2006
Focus: Adoption

The U.S. Department of Energy has requested Pacific Northwest National Laboratory to estimate the energy savings, economic impacts, and pollution reduction from adopting the 2003 International Energy Conservation Code (IECC) as the mandatory residential energy efficiency code in the state of West Virginia. The state currently allows a less energy efficient replacement option. This report addresses the impacts for low-rise residential buildings only.

Document type: State-specific
Publication Date:
Focus: Adoption

This rule establishes the standards considered necessary by the State Fire Commission for the safeguarding of life and property and to ensure compliance with the minimum standards of safe construction of all structures erected or renovated throughout West Virginia.

Document type: State-specific
Publication Date: June 2013
Focus: Adoption

West Virginia has adopted the 2009 International Energy Conservation Code for residential construction and the ASHRAE 90.1-2007 standard for commercial building construction.

Document type: State-specific
Publication Date:
Focus: Adoption

Under the statute sections listed in this document, the Department of Commerce has the responsibility to adopt rules that establish uniform, statewide standards for the construction of 1- and 2-family dwellings. This code, in its entirety, first went into effect in 1980. Sections 101.63 (5) and 101.73 (8), Stats., require the department to review these rules on a biennial basis.

Document type: State-specific
Publication Date: July 2013
Focus: Adoption

This letter will serve as certification that the 2009 IECC code with Wisconsin amendements as contained in SPS chapters 360-366 were implemented on Sept. 1, 2011. Attached to this letter is an analysis of current Wisconsin UDC versus the 2012 IECC (prepared by the Midwest Energy Efficiency Alliance), which Wisconsin is in the process of evaluating (as of the date of this letter).  Changes to the Wisconsin Commercial Building Code were also implemented on Septemeber 1, 2011. This letter certifies that Wisconsin  Commercial Building Code adopted the 2009 editions of the International Building Code and the International Energy Conservation Code, with amendments as addressed in SPS Chapters 360-366.

Document type: State-specific, Technical Assistance report
Publication Date: October 2007
Focus: Adoption

As of the writing of this report, the state of Wyoming currently does not have a statewide building energy efficiency code for residential buildings, although Laramie adopted the 2003 International Energy Conservation Code. The U.S. Department of Energy has requested Pacific Northwest National Laboratory to estimate the energy savings and economic impacts from adopting the 2006 IECC. This report addresses the impacts for residential buildings only.