The U.S. Department of Energy (DOE) Weatherization Assistance Program (WAP) regularly reviews the work of states and grant recipients for effectiveness and for meeting program goals. DOE's Oak Ridge National Laboratory provides technical support to the program and conducts the evaluations.
The overall goal of WAP is to reduce the burden of energy prices on the disadvantaged.
WAP's metrics consist of the amount of funding provided to the states and the number of homes weatherized. Since the states manage their respective programs, the funding and number-of-homes metric reflects what is accomplished in the states.
The single most important metric is the number of homes weatherized, and reflects data collected from the states. Since many states operate on a different fiscal year and report at different time than DOE, these production data are reported on a "program year" that lags DOE's fiscal year ending September 30.