Adam Berry, Building Codes Advisor with the Colorado Energy Office spoke with me about Colorados path to its 3rd statewide code.  Following plumbing and electrical the state energy code is a significant step for a home rule state where building codes are normally adopted, amended, and enforced at a jurisdictional level.

 In this case, through legislation Colorado has adopted a new Model Low Energy and Carbon Code (MLECC) which becomes the States mandatory minimum standard for new and renovated buildings after July 1, 2026. After that date, all cities and counties in Colorado must adopt the LECCwhenever they update any local building codes. Amendments to the adopted code are only allowed to make the code more efficient than the LECC.

Currently the State has jurisdictions that have no codes, and are likely to stay that way, and jurisdictions that are currently adopting the 2021 or 2024 IECC before the July 2026 implementation date so they don’t have to adopt the LECC. There are also some jurisdictions moving straight to the LECC, so in reality it is currently all over the place with a plan to get unified over time.

 The Low Energy and Carbon Code is Based on the 2024 IECC with amendments to prioritize energy efficiency, fuel neutrality, and pre-electrification or electric ready requirements, such as EV and PV readiness, to address affordability, lower utility bills, and reduce carbon emissions.

Adam Berry on LinkedInColorado’s Low Energy and Carbon Code Resources

Colorado's LECC Tools

Building and Energy Resources at the Colorado Energy Officeincluding Codes

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