What a psychiatric service dog letter actually is
A psychiatric service dog (PSD) letter is a signed letter from a licensed mental health professional. It confirms two things: that you have a qualifying psychiatric disability, and that a dog trained to perform specific tasks supports you because of it. In short, it documents a clinical determination — nothing more, nothing less.
That last point matters. The letter does not train your dog, and it does not make your dog “official.” There is no government registry for service dogs, and any website selling a “certificate” or “registration” is selling something with no legal weight. What makes a dog a psychiatric service dog is its task training tied to your disability.
Who qualifies
A licensed provider looks at two things during the evaluation:
- A qualifying psychiatric disability — a condition such as PTSD, severe anxiety, major depression, bipolar disorder, or panic disorder that substantially limits a major life activity.
- A task-trained dog — the dog performs specific tasks for that disability, like interrupting a panic attack, grounding during dissociation, or medication reminders.
If your animal helps mainly by being present and offering comfort, that points to an emotional support animal rather than a PSD — which is a perfectly valid path for housing, just a different one.
What counts as a trained task
The task doesn’t have to be dramatic. It has to be trained and connected to your disability. Common examples include:
- Recognizing the early signs of a panic attack and performing a trained calming response.
- Applying deep pressure or tactile grounding to interrupt dissociation or a flashback.
- Reminding the handler to take medication on schedule.
- Checking a room before entry for a handler with hypervigilance.
The full picture is in our PSD letter requirements guide.
When the letter actually helps
Housing
This is where a PSD letter earns its keep. When you ask a landlord to keep a service dog in no-pet or pet-restricted housing, that’s a reasonable-accommodation request under the Fair Housing Act. If your disability isn’t obvious, the landlord can ask for documentation that reasonably supports the need — and a PSD letter from a licensed provider is exactly that. See PSD letter for apartments for how that conversation works.
What it doesn’t do
A PSD letter is supporting documentation, not a guarantee. It does not force a landlord, airline, or business to say yes, and it does not replace actually training your dog. A housing provider must consider a valid request, but decisions are made individually.
How to get a PSD letter online
The process is straightforward: complete a short assessment, meet a licensed mental health professional for an evaluation, and — if you qualify — receive a signed letter with the provider’s license details. The whole thing can happen online, and you’re refunded if you don’t qualify. Walk through it on psychiatric service dog letter online.
See if a PSD letter fits your situation
A licensed mental health professional reviews your answers and tells you whether a psychiatric service dog letter is right — with a refund if you don’t qualify.
Start PSD Assessment