Service Dogs, Therapy Dogs and Emotional Support Animals

This page is for people with cancer who rely on an animal, or want to, and need to know where it is allowed. It covers hospitals, flights, and rental housing under US federal rules.

People use these three terms as if they mean the same thing. In law they mean quite different things. If you are trying to bring a dog to an appointment, onto a plane, or into a rental, the difference is the whole ballgame.

A service dog is trained to do a specific task for one person with a disability. Guiding someone who cannot see. Alerting to a sound. Picking up dropped items for someone with limited reach. Bracing for someone unsteady on their feet. The key point is that the dog does something the person's disability makes hard.

A therapy dog provides comfort to people, often in a group setting. Under the ADA it is not a service animal, because it has not been trained to perform a specific job or task for one person with a disability.

An emotional support animal helps one person by being there, not through training. That help can be entirely real. It is simply not what these particular laws are written around.

The Americans with Disabilities Act defines a service animal as "a dog that has been individually trained to do work or perform tasks for an individual with a disability." The task must be directly related to that disability.

The ADA leaves out emotional support, therapy, comfort and companion animals. The reason it gives is that they "have not been trained to perform a specific job or task."

One distinction trips people up in both directions. A dog that simply gives comfort during anxiety is not a service animal. A dog trained to detect an oncoming anxiety attack and take a specific action is a psychiatric service dog. That dog does qualify. The line is the trained action, not the diagnosis.

The two questions

When it is not obvious what a dog does, staff may ask exactly two questions:

1. Is the dog a service animal required because of a disability?
2. What work or task has the dog been trained to perform?

That is the whole list. They may not ask about your medical condition. They may not require documentation. They may not make the dog show its task. And they may not insist on a vest or an identification card.

Someone may tell you that you need to register your dog. No federal law requires it. The websites selling certificates are not granting any legal status.

In a hospital

Under the ADA, service animals must be allowed in patient rooms and public areas.

Some medical units, such as an operating room, a burn unit or a protective isolation room, may restrict access when necessary. Staff can also ask a dog to leave if it is out of control and the handler does not control it, or if it is not housebroken.

Are you being admitted, and do you rely on a service dog? Raise it before the day. Ask who handles the dog if you are in a procedure. Ask whether the unit you are going to has restrictions.

Air travel has its own rules, set by the Department of Transportation, and they are not the same as the ADA. Airlines may ask for forms or set requirements for animals in the cabin. Check the airline's current service animal policy well before your flight, and ask your care team or social worker for help if travel is part of your treatment plan.

Housing is the setting most likely to affect someone reading this.

Rental housing is covered by fair housing rules, which are separate from the ADA's service animal rules and can change. We could not confirm the current federal guidance on emotional support animals in housing from the agency's own page, so do not assume either way. If you rent and rely on an animal, ask your housing provider about their process for an assistance animal request, check your state and local rules, and ask a legal aid service or your hospital social worker for help.

Ask the hospital social worker. This is squarely the kind of problem they handle. They can point you to local resources and may be able to help with a request. Our costs and practical help guides cover the wider set of paperwork problems that tend to arrive at the same time.

This page explains general legal rules and is not legal advice. Rules differ by state and by situation. Any specific dispute is worth taking to a legal aid service or your hospital's social work team.