Child care programs can be one setting for promoting physical activity (PA). To support technical assistance providers in promoting PA best practices, Nemours Children's Health with the Centers for Disease Control and Prevention developed a set of trainings known as Physical Activity Learning Sessions (PALS). PALS centers on PA best practices, and state partners are encouraged to embed the program into early care and education (ECE) systems, such as training and TA networks. From 2019 to 2023, 22 states and 802 individuals completed a PALS train-the-trainer (TTT) course. This brief highlights findings from the 2022-2023 PALS evaluation, examining the extent to which PALS provided ECE trainers with effective training materials, affected trainer confidence in providing PA trainings to ECE providers, and was integrated into state systems. The PALS evaluation included a mixed-methods design consisting of pre-, post-, and 6-month post-TTT surveys of trainers. Among trainers, 87% of 125 respondents said they were confident training ECE providers on PA practices after completing the PALS TTT. Nearly 67% of participants planned to deliver a PALS training to ECE providers within 6 months of completing the TTT. Surveys from 16 of 18 PALS state leads suggested PALS has been embedded in state ECE systems. PALS counts for training credit of some type in 10 states, including licensing, provider credentials, and Quality Rating and Improvement Systems. Additional evaluation efforts could determine the impact of PALS on PA practices and policies among ECE providers and programs.