The AAP Bright Futures guidelines for preventive pediatric healthcare recommend developmental surveillance at all visits during early childhood, and standardized screening with a validated tool at the 9-, 18-, and 30-month visits. OPIP has led a number of efforts focused on supporting practices and health systems to meaningfully implement these Bright Futures recommendations. OPIP also led a large number of efforts on follow-up to developmental screening and ensuring that young children identified received follow-up.Follow-up to developmental screening: