The purpose of the Collaborating States Initiative (CSI) is to help state education agencies (SEAs) create statewide conditions that facilitate and encourage implementation of evidence-based approaches to social and emotional learning (SEL) in schools and districts. Because each state is unique, state teams must develop their own customized plans for advancing SEL. However, in creating these plans they can draw on a number of strategies for supporting district SEL efforts, preferably strategies that respond to what districts themselves say would best support their work. The suggestions offered in this document were culled from numerous conversations with district leaders, as well as consultations with states. Telephone interviews with districts lasted 30-60 minutes. In total, the authors spoke with four district superintendents, one assistant superintendent, five directors of SEL (or similar role), two directors of student services, and one chief accountability officer. The authors also learned from a survey of CSI states and general consultation with CSI state team leads. For each recommendation, action steps are proposed that grew out of the above conversations and the authors' own experience. Examples from states are also included. These examples are not exhaustive, but represent a variety of strategies. [For a more detailed report, "Emerging Insights from States' Efforts to Strengthen Social and Emotional Learning," see ED586404.]