No, not for public places and not for flights. Under the ADA, staff may not ask for any documentation, and DOJ specifically refused to let businesses demand a mental health professional's letter for psychiatric service dogs. Airlines may require only the DOT Service Animal Air Transportation Form. Medical documentation does come up at work and in housing, and there it should come from your own clinician. We do not sell letters or refer anyone to letter sellers.
Do you need a PSD letter?
Not to go into a store, restaurant, hotel, hospital or any other place open to the public. The DOJ service animal FAQ says staff "are not allowed to request any documentation for the dog, require that the dog demonstrate its task, or inquire about the nature of the person's disability." When DOJ wrote the 2010 rules, some commenters asked for a special exception that would let businesses require a letter from a mental health professional for psychiatric service animals. DOJ said no, because that "would treat persons with psychiatric, intellectual, and other mental disabilities less favorably than persons with physical or sensory disabilities."
So in public, a psychiatric service dog handler is in exactly the same position as a guide dog handler: two questions at most, no paperwork. See what businesses can ask about a service dog.
Airlines: the DOT form, not a letter
The Department of Transportation's rule, in force since January 11, 2021, says "Psychiatric service animals will be subject to the same regulations as other service animals," and the regulation on documents is explicit:
"You are not permitted to require documentation from passengers with disabilities traveling with service animals beyond the completion of the forms identified in paragraphs (a) and (b)"14 CFR 382.75
Those forms are the U.S. DOT Service Animal Air Transportation Form and, for flights of 8 hours or more, the relief attestation. A few things worth knowing about the main form:
- It asks about the dog's training and behavior, including the name of the task trainer or training organization. Answer it truthfully.
- It carries a federal false-statement warning: it is "a Federal crime to make materially false, fictitious, or fraudulent statements" on the form (18 U.S.C. 1001).
- You send it to the airline, not to DOT, and an airline may ask for it up to 48 hours before travel if you booked earlier.
Step by step: how to fill out the DOT service animal form. Each airline's process is covered in our airline guides.
Where medical documentation does come up
There are three places where a clinician's paperwork can legitimately matter.
Work. An employer is not a store. The EEOC says that when "the disability and/or the need for accommodation is not obvious, the employer may ask the individual for reasonable documentation about his/her disability and functional limitations." The Job Accommodation Network adds that an employee who trained their own dog "can be asked to document or demonstrate that the service animal is in fact appropriately trained and will not disrupt the workplace." See service dogs at work.
Housing. The still-posted 2004 HUD and DOJ Joint Statement says a housing provider may ask for reliable information that verifies a disability, describes the accommodation, and shows the link between the two, and that "In most cases, an individual's medical records or detailed information about the nature of a person's disability is not necessary for this inquiry." Nevada's statute says proof can be "a statement from a provider of health care that the animal performs a function that ameliorates the effects of the person's disability." HUD's 2026 memo now judges animal complaints by whether the animal is trained, so a landlord may reasonably ask what the dog is trained to do (our reading, since the memo sets no documentation standard). See service dogs in apartments.
Veterans' benefits. VA's service dog benefit has its own eligibility rules, separate from access rights in public places. Its regulation still describes the benefit in terms of "a visual, hearing, or substantial mobility impairment," and the PAWS for Veterans Therapy Act of 2021 amended the law so VA "may provide a service dog ... regardless of whether the veteran has a mobility impairment." Ask your VA care team how that applies to you.
Can a psychiatrist prescribe a service dog?
Not in the sense people usually mean. No one can prescribe a dog into service dog status. A psychiatrist, psychologist or other clinician can diagnose a disability, can advise whether a trained task might help, and can write documentation where a rule allows it to be requested (work, housing, VA). The dog becomes a service dog through training for a task. A letter without training creates nothing; training without a letter is complete under the ADA.
What sellers of PSD letters are selling
A letter bought from a website is a document, and DOJ is clear about what documents sold online are worth in public places:
"These documents do not convey any rights under the ADA and the Department of Justice does not recognize them as proof that the dog is a service animal."DOJ ADA service animal FAQ, question 17
In housing, states are closing the same door. Tennessee's 2024 law says reliable documentation does not include documentation "provided through a website, the primary function of which is to provide a certificate, registration, license, or similar document for a service animal or support animal for a fee." HUD's 2026 memo describes "an entire industry" that emerged "to convert pets into emotional support animals." And in May 2026 a private class action, Goven v. Support Pets, LLC, was filed in federal court alleging that a company sold certificates, ID cards and "official" documentation with no legal significance; the case is pending and nothing has been decided.
That is why we do not sell, bundle or refer letters, and why we do not offer a "do I qualify" quiz. If you need documentation for work or housing, the person to ask is your own clinician.
Is there a free psychiatric service dog letter?
You do not need one for public places or flights, so there is nothing to get, free or paid. For work or housing, a letter carries weight because of who wrote it and what they know about you, not because of what it cost. Several state laws for housing letters require a real relationship with the provider (California, Iowa, Montana, Louisiana and Arkansas require at least 30 days). A form letter from a stranger, at any price, tends to fail those tests.
Do I need psychiatric service dog certification?
No. The ADA has no certification, and DOJ says mandatory registration of service animals is not permissible. Businesses "may not require documentation, such as proof that the animal has been certified, trained, or licensed as a service animal, as a condition for entry." More in service dog certification: what's real.
What to carry instead
- For flights: a copy of your completed DOT form.
- For everyday outings: nothing is required. Some handlers carry a card with the two ADA questions printed on it to hand to a manager, like our know your rights cards. It is a courtesy tool, not proof.
- For your city or county: your dog's ordinary license and rabies vaccination record. DOJ says service animals are subject to local licensing and vaccination rules like any dog.
- For emergencies: an emergency contact your dog's rescuers can reach. Our voluntary, paid registry keeps one on file with a lookup page, and says on every card that it is not a government ID and gives no legal rights.
Common questions
Can a store ask for my psychiatric service dog letter?
No. Staff may ask only the two ADA questions. They may not ask for documentation of any kind, and DOJ refused to create an exception for psychiatric service dogs.
Do airlines require a letter for a psychiatric service dog?
No. Since 2021 airlines may require only the DOT Service Animal Air Transportation Form, plus the relief form on flights of 8 hours or more.
Can my landlord ask for documentation?
If your disability or need is not obvious, a landlord may ask for reliable information about both, usually not your diagnosis or medical records. State law often sets the details.
Can my employer ask for documentation?
Yes, unlike a store. When the disability or need is not obvious, an employer may ask for reasonable documentation, and may ask an owner trainer to show the dog is trained.
Is a PSD letter the same as an ESA letter?
No. An ESA letter supports a housing request for an untrained animal. A psychiatric service dog's status comes from its training, and in public no letter is involved at all. See ESA letters.
Can I get a psychiatric service dog letter online?
We do not sell or refer letters. If you need documentation for work or housing, ask your own clinician, and check your state's rules on who may write one.
Sources
- DOJ, ADA service animal FAQ (questions 7, 17, 18, 20)
- 28 CFR 36.302(c)(6), no documentation
- 14 CFR 382.75, documentation airlines may require
- DOT final rule on service animals in air travel, 85 FR 79742
- EEOC, reasonable accommodation and undue hardship guidance
- HUD and DOJ Joint Statement on Reasonable Accommodations (2004)
- Nevada NRS 118.105, landlords and assistance animals
- Tennessee Public Chapter 754 (2024)
- 38 CFR 17.148, VA service dog benefits
- PAWS for Veterans Therapy Act, Pub. L. 117-37
General information, not legal advice. Policies and laws change; follow the sources. Last checked September 25, 2026.