The objective of this study was to examine national trends from 2010 to 2018 in the uptake of high-impact obesity prevention standards in child care licensing regulations. Authors describe trend differences by a) child care type (Center, Large Family Care Homes, and Small Family Care Homes); b) state and U.S. region; and c) individual high-impact standards most and least supported in licensing regulations over time. This is the first study to systematically assess and describe trends in the uptake of CFOC’s 47 high-impact obesity prevention standards in ECE licensing regulations. (author abstract)