Learn the Signs. Act Early

The Program

CDC’s Learn the Signs. Act Early. program aims to improve early identification of children with autism and other developmental disabilities so children and families can get the services and support they need.

The Program is Made Up of Three Components

  • Health education campaign
  • Act Early Initiative
  • Research and evaluation


Skills such as taking a first step, smiling for the first time, and waving “bye bye” are called developmental milestones. Children reach milestones in how they play, learn, speak, act, and move. Navigation tool: English, Spanish, and Marshallese.

Developmental Milestones

CDC’s milestones and parent tips have been updated and new checklist ages added.

Developmental Monitoring

Free materials including tips, tools, and training for developmental monitoring

Developmental Delays Toolkit

What You Can Do to Help Your Child with Developmental Delays