The Weatherization and Intergovernmental Programs Support is a part of the Oak Ridge National Laboratory’s (ORNL’s) Energy and Transportation Science Division and ORNL’s Building Technologies Research and Integration Center. Our mission, in support of the US Department of Energy (DOE) Weatherization and Intergovernmental Programs Office, is to work with federal, state, and local partners to promote the adoption of energy efficiency and renewable energy technologies and practices, thereby helping the nation realize a stronger economy, a cleaner environment, and safer, more affordable energy services for all its citizens. Our activities include technical support for the Weatherization Assistant energy audit software tool, evaluations of the DOE Weatherization Assistance Program (WAP) and State Energy Program (SEP), and policy research in support of weatherization and low-income programs.