This paper provides an update and historical note on the development and implementation of the licensing key indicator methodology. The licensing key indicators are taken from the Assistant Secretary for Planning and Evaluation (ASPE) Thirteen Indicators of Child Care Quality: Research Update which has become the blue ribbon ranking of key indicators in the regulatory science research literature. The below chart contains the child care center (CCC) licensing key indicators from the tool with key words. The details of each are provided after the chart in the Legend. Selected states are along the horizontal axis demonstrating where their respective licensing key indicator was present or not (These state key indicators were generated in the last decade). By doing this, it provides a way to compare selected states and provinces. These licensing key indicators also appear in the Administration for Children and Families Caring for Our Children Basics, and several other national studies, such as Child Care Aware’s We Can Do Better series, and AAP/APHA Stepping Stones to Caring for Our Children. (author abstract)