This brief summarizes recent findings from CASEL’s State Scan, which reviewed the research literature on learning standards generally to identify key components of high-quality standards and assessed the status of each state in developing well-articulated learning standards for SEL, preschool through high school. The brief also provides recommendations to support development of high-quality SEL standards, including examples from states identified as part of CASEL’s State Scan. Concludes with a discussion of CASEL’s plans for advancing high-quality standards for SEL nationwide.