Side by side
Every glyph is paired with a text label. “⚠ Depends” cells are doing real work: they mean “check your state,” not no.
The task is the test
Under the ADA, a service animal is a dog individually trained to do work or perform tasks directly related to a person's disability: guiding someone who is blind, alerting to a seizure, retrieving items, interrupting a dissociative episode. Comfort alone is not a task. That single sentence is the dividing line in nearly every dispute.
Two questions rule. Where a disability isn't obvious, staff may ask only: (1) is the dog required because of a disability, and (2) what work or task has it been trained to perform. They may not ask about the disability, demand documentation, or require a demonstration.
No certification exists. There is no federal service dog registry, license or ID card. Vests and certificates sold online carry no legal weight.
Presence, not tasks — and what 2026 changed
An emotional support animal's therapeutic value comes from its presence. There's no training requirement, and it can be any species. The recognized role has always been in housing, through a letter from a licensed clinician confirming a disability and a disability-related need for the animal.
What changed: on May 22, 2026, HUD adopted the ADA's “individually trained” standard for deciding which housing complaints to pursue, so untrained ESAs lost presumptive federal backing. The FHA itself is unchanged, private lawsuits are preserved, and state law is untouched — which is why your state now matters more than federal guidance.
What an ESA has never had: public access rights. Not in any state.
Comfort for other people, by invitation
A therapy animal is a pet trained and evaluated (usually through a therapy-animal organization) to provide comfort to other people in hospitals, schools, and care settings. It works with a handler, enters facilities by invitation and agreement, and carries no individual access rights anywhere.
Psychiatric service dogs
A psychiatric service dog is a service dog, full stop: individually trained to perform tasks related to a psychiatric disability — interrupting self-harm, room searches for someone with PTSD, deep pressure during a panic episode. Because it's task-trained, a PSD has the full ADA access rights and ACAA travel rights an ESA does not.
ESA vs psychiatric service dog, in depth →The distinction is task training, not diagnosis
Two people with identical PTSD diagnoses may have an ESA and a PSD respectively. The difference is what the dog has been trained to do.
Honest note: training a psychiatric service dog is a serious, months-to-years commitment. Nobody can sell you one as a document. Any site offering PSD “certification” or “registration” is selling something that doesn't exist.
Working out where you fit
Presence at home helps you manage a mental health condition
An emotional support animal is the category that fits. Your protection now depends significantly on your state.
You need specific trained tasks
You're describing a service animal, including a psychiatric service dog. That path is about training, not paperwork.
You want your pet to comfort other people in facilities
That's a therapy animal, through a therapy-animal organization.
Your main goal is flying
None of the above will help unless the animal is a trained service dog.
Common questions
Current as of August 24, 2026.
Is an emotional support animal a service animal?
No. Service animals are individually trained to perform tasks; emotional support animals are not. They fall under different laws and have very different rights.
Can I take my ESA into shops or restaurants?
No. Emotional support animals have no public access rights under the ADA, in any state. Businesses may allow them at their discretion, but they're not required to.
Can my emotional support animal become a service dog?
Potentially, if the dog is individually trained to perform specific tasks related to your disability, and is temperamentally suited to public work. It's a training process, not a documentation upgrade.
Do service dogs need to be registered or certified?
No. There is no official registry, certification or ID for service animals in the United States. Any site selling one is selling a meaningless document.
Did the 2026 HUD change affect service animals?
No — if anything it clarified their position. HUD describes accommodation requests involving individually trained animals as presumptively reasonable. The change affects untrained emotional support animals.
What's the difference between a therapy dog and an emotional support animal?
A therapy dog is trained to provide comfort to other people in settings like hospitals and schools, and works with a handler. An emotional support animal supports its own owner and has no public-access or facility rights.
Not sure which fits your situation?
It's a clinical question as much as a legal one. A licensed clinician can help you work out whether an emotional support animal is appropriate, or whether something else fits better.