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From birth to 5 years, your child should reach milestones in how he plays, learns, speaks, acts and moves. Track your child’s development and act early if you have a concern.

See Milestones In Action

9th month old boy

Milestones in Action is a FREE library of photos and videos of children showing developmental milestones.


Group of profesionals, young couple, and doctor

Info for Specific Groups

Here you’ll find information for families, health professionals, educators, and partners.

A baby smiling

Birth to 5: Watch Me Thrive!

A federal effort to encourage healthy child development

Man talking on phone holding baby.

Early Intervention Contacts

Here you’ll find the agency to contact in your state if you have a concern about your young child’s development.

Act Early Materials on a shelf with a teddy bear and toys

Promising Practices

See how others help their communities “Learn the Signs.” and “Act Early.”