| Abbreviation | Definition |
|---|---|
| ACD | Autism Care Demonstration |
| ACNC | Autism Center of Northern California |
| ACNM | Autism Center of North Mississippi |
| ACON | Autism Coalition of Nevada |
| ACSO | Autism Center of Southeastern Ohio |
| ACT | Autism Care and Treatment |
| ACT | Autism Care Today |
| ADDC | Autism and Developmental Disabilities Clinic |
| ADDL | Autism and Developmental Disorders Lab |
| ADEC | Autism Detection in Early Childhood |
| ADEP | Autism Diagnosis Education Project |
| ADI | Autism Diagnostic Interview |
| ADLI | Autism Developmental Language Impairments |
| ADOS | Autism Diagnosis Observation Schedule |
| ADOS | Autism Diagnostic Observation Scale |
| ADOS | Autism Diagnostic Observation schedule |
| ADOS | Autism Diagnostic Observational Schedule |
| AFAA | Advancing Futures for Adults with Autism |
| AFAM | Advocates For Autism of Massachusetts |
| AFIRM | Autism Focused Intervention Resources and Modules |