Skip Navigation

The U.S. Department of Energy and the North Carolina Clean Energy Technology Center are excited to announce that a new, modernized DSIRE is under construction. The new version of DSIRE will offer significant improvements over the current version, including expanded data accessibility and an array of new tools for site users. The new DSIRE site will be available in December 2014. Staff are currently working hard on the new version of DSIRE but are also maintaining the content of the current version of DSIRE. Thank you for your continued support and patience during this transition. We hope you are as excited for December as we are!

US Department Energy Efficiency and Renewable Energy
IREC North Carolina Solar Center
Home Glossary Links FAQs Contact About Twitter    Facebook


Incentives/Policies for Renewables & Efficiency

Printable Version
Building Energy Code   

Last DSIRE Review: 07/28/2014
Program Overview:
State: Colorado
Incentive Type: Building Energy Code
Eligible Efficiency Technologies: Clothes Washers, Dishwasher, Comprehensive Measures/Whole Building, Water-Efficient Appliances and Fixtures
Eligible Renewable/Other Technologies: Solar Water Heat, Photovoltaics
Applicable Sectors: Commercial, Residential
Residential Code:2003 IECC or any successor edition is the minimum energy code for any jurisdiction that has adopted a building code; can use REScheck to show compliance.
Commercial Code:2003 IECC or any successor edition is the minimum energy code for any jurisdiction that has adopted a building code; can use COMcheck to show compliance. In any area that does not adopt or enforce local codes, the 1993 MEC is mandatory for hotels, motels, and multifamily dwellings.
Code Change Cycle:No set schedule. Most recent code update July 1, 2008.
Web Site:
Authority 1:
Date Effective:
C.R.S. § 30-28-201, et seq.
Authority 2:
Date Effective:
C.R.S. § 31-15-602
Authority 3:
Date Effective:
C.R.S. § 38-35.7-106, et seq.
08/05/2009 (Subsequently amended)

Much of the information presented in this summary is drawn from the U.S. Department of Energy’s (DOE) Building Energy Codes Program and the Building Codes Assistance Project (BCAP). For more detailed information about building energy codes, visit the DOE and BCAP websites.

Colorado is a home rule state, so no statewide energy code exists, although state government buildings do have specific requirements. Voluntary adoption of energy codes is encouraged and efforts through grants are directed toward informing local jurisdictions of the benefits of energy efficiency standards and providing materials and training to support code implementation. Compliance is based on the requirements of the local jurisdictions.

Any county or municipality that had a building code in place was required to adopt 2003 IECC or 2006 IECC as the minimum energy code standard by July 1, 2008 (C.R.S. § 30-28-201). As of June 2012, adoption of the 2009 IECC or above by local jurisdictions accounted for more than 85% of current residential and commercial construction in Colorado. 

Local enforcement agencies in jurisdictions that have adopted building codes are required to enforce the provisions of the residential energy code at the local level, but may adopt their own requirements without state approval. Inspections are required as a part of the established building inspection process. No special inspection requirements exist for state-owned and -funded buildings. These inspections are handled by the local enforcement agencies.

Solar Energy

Builders of single family homes are required to offer solar energy as a standard feature to all prospective homebuyers (C.R.S. § 38-35.7-106). Builders are required to give the buyer the option to either have a photovoltaic (PV) system or a solar water heating system installed on their new home or to have all the necessary wiring and plumbing installed so that they can easily add a solar system at a later date. The builder must also provide the buyer with a list, maintained by the Colorado Energy Office, of every solar installer in the area, so the buyer can obtain expert help in determining if their home's location is suitable for solar and what the estimated cost savings would be.

Appliances and Fixtures

Builders of new detached single-family homes are required to offer certain energy- and water-efficient products if the buyer is under contract (C.R.S. § 38-35.7-107). The builder must offer water-efficient toilets, faucets, and shower heads and provide the option for the homeowner to purchase Energy Star-rated dishwashers and clothes washers and various water-saving landscaping devices if such items are included in the sale of the house.

  Rick Hanger
Colorado Department of Local Affairs
Division of Housing
1313 Sherman Street #321
Denver, CO 80203
Phone: (303) 866-4656
Web Site:
  Conor Merrigan
Colorado Energy Office
Commercial Energy Efficiency
1580 Logan Street
Suite 100
Denver, CO 80203
Phone: (303) 866-3965
Fax: (303) 866-2930
Web Site:
NCSU - home
Disclaimer: The information presented on the DSIRE web site provides an unofficial overview of financial incentives and other policies. It does not constitute professional tax advice or other professional financial guidance, and it should not be used as the only source of information when making purchasing decisions, investment decisions or tax decisions, or when executing other binding agreements. Please refer to the individual contact provided below each summary to verify that a specific financial incentive or other policy applies to your project.

While the DSIRE staff strives to provide the best information possible, the DSIRE staff, the N.C. Solar Center, N.C. State University and the Interstate Renewable Energy Council, Inc. make no representations or warranties, either express or implied, concerning the accuracy, completeness, reliability or suitability of the information. The DSIRE staff, the N.C. Solar Center, N.C. State University and the Interstate Renewable Energy Council, Inc. disclaim all liability of any kind arising out of your use or misuse of the information contained or referenced on DSIRE Web pages.

Copyright 2014 - 2015 North Carolina State University, under NREL Subcontract No. XEU-0-99515-01. Permission granted only for personal or educational use, or for use by or on behalf of the U.S. government. North Carolina State University prohibits the unauthorized display, reproduction, sale, and/or distribution of all or portions of the content of the Database of State Incentives for Renewables and Efficiency (DSIRE) without prior, written consent.