Urban is partnering with the District of Columbia’s Office of the State Superintendent of Education (OSSE), which administers CCDF and DC’s child care subsidy program, to design an evaluation to understand whether DC’s child care subsidy policies are being implemented as intended and increasing access to quality child care for the city’s most vulnerable populations. Our planning efforts have yielded a promising approach for assessing how changing subsidy rates and copayments affects families, providers, and agency staff. These insights can inform researchers interested in evaluating child care subsidy programs in DC and beyond. (author abstract)