The 2014 Child Care and Development Block Grant (CCBDG) Act aims to ensure that children whose care is supported by Child Care and Development Fund (CCDF) programs are in high quality settings that have received inspections and are monitored and that children are in stable arrangements. With support from the Office of Planning, Research and Evaluation (OPRE), Oregon is conducting multiple studies to assess the impact of the implementation of the 2014 CCDBG Act. The research is being conducted in two phases and includes multiple studies. This report describes findings from Phase I of the grant, and focuses on findings from an administrative data study of participants in the two years prior to implementation of the 2014 Act. Specifically, this report addresses characteristics of children, parents, and providers, including race/ethnicity, primary language, and level of education of providers and children served by these providers. Participation in Professional Development (PD)/Support and indicators of quality are examined. We also look at stability of subsidy participation and of the care provided for those entering in November 2014 through September 2016. Findings from the Phase I study provide insight into Oregon’s subsidy program, documenting who participates and the stability of that participation prior to the Act. (author abstract)