The Early Childhood Comprehensive Systems Collaborative Improvement and Innovation Network (ECCS CoIIN) was a five-year nationwide initiative to improve outcomes in population-based children’s developmental health and family well-being, funded by the Health Resources & Services Administration’s (HRSA) Maternal and Child Health Bureau (MCHB).

In our final report, we provide key takeaways and recommendations from the multiyear initiative to improve early childhood service systems in 12 states to increase age-appropriate developmental skills among 3-year-old children and reduce developmental disparities.