Since the Collaborative for Academic, Social, and Emotional Learning (CASEL) launched the Collaborating States Initiative (CSI) to support social and emotional learning (SEL) in 2016, participation has grown dramatically. CASEL initially planned to work with five states. In the past two years, the CSI team and its partners have worked with 25, which collectively serve about 11,500 school districts, 58,000 schools, and 30 million students. The purpose of the CSI is to help state education agencies create statewide conditions that will encourage and equip educators at the district level to promote integrated, equity-focused, academic, social, and emotional learning. The purpose of this report is to describe examples of the strategies states have used to connect with, support, and learn from districts, recognizing that many districts are leading the way. This report begins to note the ways many states have been enacting those recommendations. Critically important across all of the strategies described is that they clearly communicate, first and foremost, that SEL is a statewide priority. Finally, this document highlights how state and district activities correspond with CASEL's recently revised District Theory of Action (TOA). [For the companion report, "Deeper Insights: How Six States Are Collaborating with Local and Regional Educators to Implement Academic, Social, and Emotional Learning. CSI Spotlight," see ED597733. For a more detailed report on this topic, "District Recommendations for How States Can Support SEL," see ED597735.]