The above question has two parts.

A. The ADA does not require people with disabilities who have service animals to register their service animal. The ADA allows people with disabilities to be accompanied by their service animal anywhere the public is allowed to go.  Registry of service animal, a harness identifying the dog as a service animal or documentation as proof is not required. 

B. An emotional support animal is not a service animal and therefore not covered under the ADA. A service animal is defined as any dog individually trained to do work or perform tasks for the benefit of an individual with a disability, including a physical, sensory, psychiatric, intellectual, or other mental disability.

The ADA allows two questions:

• Is the dog a service animal required because of your disability?
• What work or task has the animal been trained to provide?