Service Dog: Autism Assistance Dogs
Job: To assist in calming and grounding an individual on the autism spectrum via tactile or deep pressure stimulation. May also assist in teaching life skills, maintaining boundaries or finding a “runner.”
Handler: Likely to be a child, but could be older. May or may not show visible signs of disability, and may or may not be verbal.
Gear: Autism Assistance Dogs don’t have distinguishing gear. If a dog’s partner is young and non-verbal, the dog should carry emergency protocol and contact information in his vest.
Notes: Autism Assistance Dogs and Sensory Processing Disorder Dogs fall into the same category and usually perform identical task work.
excerpt taken from http://www.anythingpawsable.com/types-of-service-dogs