BECP develops and maintains free software and tools to support the development of national model codes and standards (including the award-winning REScheck software for low-rise residential building energy code compliance, and the COMcheck software for commercial building energy code compliance), and conducts outreach and deployment activities related to energy codes and high-performance sustainably designed buildings. Outreach activities include an annual training event for states, on-demand training and technical assistance, a quarterly newsletter, and a website of useful information on all aspects of U.S. building energy codes. BECP also works with the Building Codes Assistance Project (BCAP) to support code-related advocacy activities.