[Code of Federal Regulations]
[Title 45, Volume 4]
[Revised as of October 1, 2006]
[CITE: 45CFR1308.15][Page 168]
TITLE 45--PUBLIC WELFARE
CHAPTER XIII--OFFICE OF HUMAN DEVELOPMENT SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES
PART 1308_HEAD START PROGRAM PERFORMANCE STANDARDS ON SERVICES FOR CHILDREN WITH DISABILITIES--Table of Contents
Subpart D_Health Services Performance Standards
Sec. 1308.15 Eligibility criteria: Autism.
A child is classified as having autism when the child has a developmental disability that significantly affects verbal and non-verbal communication and social interaction, that is generally evident before age three and that adversely affects educational performance.

See also:
Autism/Pervasive
Developmental Disorder