Therapy Dogs vs. Service Dogs: Understanding the Difference

Therapy dogs, service dogs, and emotional support animals have different roles and different legal standing. Here is a clear comparison.

7 min read

Why the distinction matters

The terms are often used interchangeably, but they describe very different roles. Understanding the difference helps businesses, schools, and families respond appropriately and protects the rights of people with disabilities who rely on service animals.

Service dogs

Under the Americans with Disabilities Act (ADA), a service animal is a dog individually trained to do work or perform tasks for a person with a disability. Examples include guiding a person who is blind, alerting a person who is deaf, or interrupting a medical episode. Service dogs generally may accompany their handler in public places where the public is allowed.

A service dog is working for one person. Members of the public should not pet or distract a service dog without permission.

Therapy dogs

Therapy dogs provide comfort and companionship to many people, usually as part of volunteer visits arranged with a facility. They are not considered service animals under the ADA and have no special public access rights. They visit only where they have been invited and where the facility's policies allow.

Emotional support animals

An emotional support animal (ESA) provides comfort to its owner through companionship, and it does not need task training. ESAs are not service animals under the ADA. Certain housing rules may treat them as assistance animals; the U.S. Department of Housing and Urban Development publishes guidance on this topic.

Quick comparison

Service dog: trained to perform tasks for one person with a disability; broad public access under the ADA.
Therapy dog: visits many people with a handler, by invitation; no special public access rights.
Emotional support animal: comforts its owner; no task training required; not a service animal under the ADA.

A note on vests and certificates

Vests, ID cards, and online 'registrations' do not by themselves make a dog a service animal, and the ADA does not require them. Therapy dog teams often wear identification provided by a visiting program so that facilities can recognize them, but this is a program practice, not a legal status.