RESNET is a non-profit organization that develops and maintains national standards for assessing the energy efficiency of houses. As a nationally certified HERS (Home Energy Rating System) rater, Nate Munson is able to provide an audit that includes a HERS index, which is a relative energy use index developed by RESNET. As a HERS rater, RESNET's standards are officially recognized for verification of building energy performance for such programs as USGBC LEED for Homes, federal tax incentives, the Environmental Protection Agency's ENERGY STAR program and the U.S. Department of Energy's Building America Program.