The purpose of the CASEL State Scan is to support the development of high-quality standards for social and emotional learning (SEL), preschool through high school, across the country (Dusenbury, Zadrazil, Weiss-berg & Mart, 2011). This brief summarizes recent findings from CASEL's State Scan (Dusenbury, Newman, Weissberg, Goren, Domitrovich & Mart, in press), 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. This brief also provides recommendations to support development of high-quality SEL standards, including examples from states identified as part of CASEL's State Scan. We conclude with a discussion of CASEL's plans for advancing high-quality standards for SEL nationwide.