This report looks at the impact of the Seed Model Campus Cohort Program in its first 3 years of implementation. Evidence put forth in the report suggests that by deliberately focusing on inclusive program design and peer-to-peer sharing with a focus on growth, the program already positively contributes to SEL implementation, particularly through increased coordination of SEL leadership efforts and through increased adult SEL skills. [This program was supported by the Klein Foundation, Kozmetsky Foundation, St. David's Foundation, and Tapestry Foundation. In addition, SEL has been selected as a signature initiative of the Austin Ed Fund. For the Executive Summary, see ED629905.]