Referrals for service are made through the Local Education Agency (LEA) by parents, schools, community agenencies, and private agencies. Students from ages five to twenty-one have been typically enrolled in other classes and have a documented need for more restrictive placements. A parent or legal guardian's signature is required on each referral form.

The intensity of services is determined by a consensus of the committee involved in serving the child. Parental consent must by given by the parent/legal guardian before services can begin.