A service dog is a dog individually trained to perform specific tasks for a person with a disability, as defined in 28 CFR § 36.104. It has full public-access rights under the Americans with Disabilities Act. A therapy dog is a well-tempered pet that, with its owner-handler, visits hospitals, nursing homes, schools, and disaster sites to provide comfort to many different people. Therapy dogs have no federal public-access rights — they are pets in legal terms, even when registered with a national therapy-dog organization.
The two roles are easy to confuse because both involve highly trained dogs and both clearly help people. But the legal categories are sharply different, and that difference shapes everything from who the dog works with, to where it can go, to what training it needs, to whether the handler has any rights to push back when access is denied.
What's the legal difference between a service dog and a therapy dog?
The Americans with Disabilities Act defines a service animal narrowly: “A dog that is individually trained to do work or perform tasks for the benefit of an individual with a disability.” That definition does three jobs. It limits qualifying species to dogs (with a separate carve-out for miniature horses). It requires individual training. And it requires the dog to do work or tasks for one specific disabled handler.
Therapy dogs fit none of those criteria. A therapy dog’s primary purpose is to provide comfort to people the dog encounters during structured visits. It is not trained to do tasks for one disabled handler; it works for the public at large. The DOJ has been explicit that therapy animals are not service animals under Title II or Title III of the ADA.
Where can each one go legally?
Service dogs go anywhere the public goes — restaurants, grocery stores, hotels, hospitals, courthouses, government buildings, taxi rides, planes (for service dogs with proper DOT documentation). The ADA preempts business policies, breed bans, and pet fees.
Therapy dogs need permission. Hospitals, schools, libraries, and nursing homes invite registered therapy-dog teams in to do scheduled visits. Without that invitation, a therapy dog has the same legal status as any pet — meaning the business can lawfully exclude it. Many therapy-dog organizations carry liability insurance that hospitals and schools require before scheduling visits.
| Service Dog | Therapy Dog | |
|---|---|---|
| Federal law | ADA + FHA + ACAA | None — no federal rights |
| Public-access rights | Yes — anywhere the public can go | No — only where invited |
| Works for | One disabled handler | Many strangers (visits) |
| Required training | Individually trained tasks | Temperament + obedience |
| Typical certifying body | None federal; voluntary registries | AKC Therapy Dog, Pet Partners, Alliance of Therapy Dogs |
| Vest / ID required by law | No | No (but visits usually require it) |
| Allowed in ‘no pets’ housing | Yes (FHA) | No (treated as pet) |
| Allowed in airline cabin | Yes (DOT form) | No |
| Pet fees / deposits | Banned by ADA | Owner pays normal pet fees |
What kind of training does each role require?
Service dog training is task-focused. The dog must reliably perform at least one specific, repeatable task that mitigates the handler’s disability — alerting to low blood sugar, retrieving medication, interrupting a panic attack, providing balance support, alerting to a seizure, deep-pressure therapy. Most service-dog trainers also drill public-access skills (no pulling, no greeting strangers, settling under a table, ignoring food on the floor) because a dog that disrupts a restaurant doesn’t get to stay there long under the ADA’s “out of control” exception.
Therapy dog training is people-focused. The dog needs a stable, friendly temperament around strangers in unpredictable environments — wheelchairs, oxygen tanks, crying children, sudden loud noises. National therapy-dog organizations evaluate teams against a published standard (often based on the AKC Canine Good Citizen test, plus visiting-specific simulations). Once registered, the team carries that organization’s ID and is covered by its liability insurance during scheduled visits.
Can my therapy dog become a service dog?
Sometimes — but only if you, the handler, have a disability the dog is being trained to mitigate. The ADA test is about the work, not the dog’s pedigree. If you have a documented disability and your therapy dog is now individually trained to perform a task that helps you specifically, the dog can lawfully meet the service-dog definition. Many psychiatric service dogs were initially raised as well-behaved family pets and then re-trained for one handler’s PTSD, anxiety, or depression tasks.
What you cannot do is repurpose a therapy dog’s general visiting work as a “task” for ADA purposes. “He makes me feel better” is not a task. “He alerts me to oncoming dissociation by pawing at my leg” is.
What about employer-sponsored therapy dogs at work?
Employer programs that bring therapy dogs into offices, fire stations, or police departments are not service-dog programs. They are workplace-wellness programs, and the dogs visit under the employer’s policy — not under any federal access right. If the employer ends the program, the dogs lose access. By contrast, an employee with a documented disability who needs a service dog has a separate ADA Title I right to a reasonable accommodation, evaluated on its own facts.
How do I tell which one I'm looking at in public?
You usually can’t from a glance. There’s no federal vest, no federal patch, no federal ID card that distinguishes a service dog from a therapy dog from a well-trained pet. The ADA’s two-questions rule lets staff at a business ask whether the dog is required because of a disability and what task it’s trained to perform. Those answers separate service dogs from everything else. Therapy dog teams visiting a hospital usually wear that organization’s vest (Pet Partners, Alliance of Therapy Dogs, AKC Therapy Dog) and have a scheduled appointment — staff there will know they’re coming.
Summary — what to remember
Common questions about service dog vs therapy dog
Is a therapy dog a service dog under the ADA?
No. The ADA defines a service dog as one individually trained to do work or perform tasks for a person with a disability. Therapy dogs visit many people for comfort and don’t meet that definition, so they have no public-access rights under federal law.
Can my therapy dog go to restaurants and stores?
Only with the business’s permission, the same as any pet. Therapy dogs are not protected by the ADA’s public-access rules. Service dogs, by contrast, can go anywhere the public can go.
Do therapy dogs have housing rights?
No. Therapy dogs are treated as pets under the Fair Housing Act, so a ‘no pets’ building can lawfully refuse them. Service dogs and ESAs both have FHA rights; therapy dogs do not.
Can I retrain my therapy dog as a service dog?
Yes, if you personally have a disability and the dog is individually trained to do tasks that mitigate that disability. The ADA cares about the task and the handler, not the dog’s history. Most psychiatric service dogs were once well-behaved family pets.
What organizations register therapy dogs?
The major US therapy-dog organizations are Pet Partners, Alliance of Therapy Dogs, AKC Therapy Dog Program, and Therapy Dogs International. Each has its own evaluation, ID, and liability-insurance coverage for visits.
Does a therapy dog vest give it any legal rights?
No. A vest is helpful for visits because staff at hospitals and schools can see the dog is part of an authorized program. But the vest itself confers no federal access rights — it’s a courtesy ID for scheduled visits.
Can therapy dogs fly in the airline cabin?
No. The 2021 DOT rule limits cabin access to service dogs trained to do tasks for one disabled handler. Therapy dogs travel as pets, with all the airline-specific pet rules and fees that apply.
What about courthouse facility dogs?
Facility dogs are a third subcategory. They work in courthouses, victim-advocacy programs, and clinical settings under their handler organization’s policy, not under the ADA. They are highly trained but legally treated like therapy dogs for public-access purposes.
Sources
- ADA Requirements: Service Animals — U.S. Department of Justice
- Frequently Asked Questions about Service Animals and the ADA — U.S. Department of Justice
- 28 CFR § 36.104 Definitions (Service animal) — Electronic Code of Federal Regulations
- Service, Therapy, and Emotional Support Animal Terminology — Pet Partners