Windows & Online
Guides & Materials: 

Available from the Department of Energy EERE Building Energy Codes Program, the COMcheck software product makes it easy for architects, builders, designers, and contractors to determine whether new commercial or high-rise residential buildings, additions, and alterations meet the requirements of the IECC and ASHRAE Standard 90.1, as well as several state-specific codes. COMcheck also simplifies compliance for building officials, plan checkers, and inspectors by allowing them to quickly determine if a building project meets the code.

COMcheck is available in two formats:

  • COMcheck-Web™ accessible directly online with no installation; and
  • COMcheck™ Desktop for Windows® downloaded and installed locally.

COMcheck supported Codes:

  • 2009, 2012, 2015 AND 2018 IECC; ASHRAE STANDARD 90.1-2007, 2010, 2013, 2016 (ASHRAE STANDARD 90.1-2019 in COMcheck-Web only)
  • State Energy Codes: Colorado (Boulder and Denver), New York City (NYCECC), New York State (NYSTRETCH), Vermont as well as Puerto Rico and Ontario, Canada (District of Columbia, Florida, and Massachusetts in COMcheck-Web only)
Supporting Federal Agency: