Energy Codes

2 men doing energy efficiency test on the front door of a home


The most cost effective way to improve the efficiency of buildings is when they are being built.   One way to ensure that savings are effective is to adopt an energy code that works with building codes designed to promote health and safety. The Colorado Energy Office (CEO) has no rule-making authority to make jurisdictions adopt any code.  However, through training for city staffers and private sector workers such as architects, builders, and contractors, CEO provides market information to help jurisdictions adopt, implement, and comply with new codes.

Colorado’s training efforts has put the state in the position where over 90 percent of construction activity in Colorado occurs in communities that have adopted the 2009 International Energy Conservation Code (IECC) or newer. Nearly 50 percent of all construction activity in Colorado occurs in communities adopting the 2012 and 2015 IECC. Further breaking this down, communities who recently have adopted the 2015 IECC, or are in the process with an expected adoption in 2016, will cover approximately 27 percent of the construction activity in the state. 

CEO is a leading member of the Energy Code Compliance Collaborative.  The Collaborative consists of code officials, builders, designers, and other interested stakeholders that are working together to develop, manage, and promote the energy code compliance system for Colorado, and implement Colorado's Energy Code Strategic Compliance Plan.

For questions, or to request a training, contact Kim Burke at