Subscribe to updates

To receive updates about compliance tools subscribe to the BECP Mailing List.

Commercial Compliance Using COMcheck

The COMcheck product group 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 Desktop can be downloaded and installed directly to your desktop, while COMcheck-Web™ is accessible directly from the website without having to download and install.

See if your state or county can use COMcheck to show compliance.

COMcheck™ Software

COMcheck™ for Windows®
Version 4.0.3 (Build Version:
Runs on Vista or Windows 7 in either single, multi-user, or network environments

Supported Codes:

2009, 2012 and 2015 IECC.
ASHRAE Standard 90.1:2007, 2010, and 2013
Various state-developed energy codes.

Version 4.0.3 fixes problems associated with the settings of heat pumps, air conditioners, water heaters, and condensing units, for the 2015 IECC and 90.1-2013 codes.

COMcheck™ for Mac®
The Mac version of COMcheck has been discontinued. Users are advised to use COMcheck-Web

Projects previously created using COMcheck for Mac may be uploaded into COMcheck-Web.



COMcheck-Web simplifies commercial and high-rise residential energy code compliance. It performs just like the desktop version of COMcheck, but you don't need to download or install any software on your computer.

Have a compliance question or need assistance with the software?

BECP's team of building energy codes experts is available to answer specific questions submitted through our web-based help desk.

Comcheck Software Support Documents

User's Guide

Updates to REScheck and COMcheck Building Energy Code Compliance Software

The U.S. Department of Energy (DOE) is directed to provide technical assistance to states to support the implementation of model residential and commercial building energy codes (42 USC 6833). As part of this assistance, the DOE Building Energy Codes Program provides ongoing support for REScheck and COMcheck compliance software, which are updated based on new editions of the model codes. DOE has published guidance surrounding its support for the software, including technical assistance requests for modified versions.