Updated September 15, 2026first published December 19, 2021Rewritten in full against the current regulations
Last updated: 23 August 2026
If you’re looking into emotional support animal requirements, the honest starting point is that most of what’s written about them online is out of date — some of it by five years, some by three months.
Here’s where things actually stand:
- Air travel: an ESA has not been treated as a service animal on US flights since January 2021. Pages telling you otherwise are wrong.
- Housing: this changed on 22 May 2026, and it changed against you if your animal isn’t trained.
- Public access: an ESA has never had it, and still doesn’t.
None of that means an emotional support animal isn’t worth having. It means knowing what the letter in your hand actually does, so you find out here rather than at a rental office or an airline counter.
What an emotional support animal is
An emotional support animal provides comfort and companionship to a person with a mental or emotional condition. The comfort itself is the point. It isn’t trained to do anything specific.
That’s what separates it from a service dog, which is individually trained to perform tasks related to a disability — interrupting a panic attack, retrieving medication, blocking. The training creates the legal status, and the Department of Justice states plainly that “the provision of emotional support, well-being, comfort, or companionship do not constitute work or tasks” under the ADA.
A therapy dog is a third thing again — a dog that visits hospitals, schools or care homes to provide comfort to other people. That’s covered in service dog versus therapy dog.
Three categories, three different sets of rights, and they get mixed up constantly.
What an ESA letter is
An ESA letter is a document from a licensed professional who treats you, stating that you have a disability and that an animal helps with it. It is not a license, a certificate or a registration, and there is no list it puts you on. What it does is support a reasonable accommodation request to a housing provider.
What a real one contains, who may legally write one, and what it still gets you after the May 2026 enforcement change are covered in full in ESA letters.
Who can write one
A licensed professional who is actually treating you. In practice that means a therapist, psychiatrist, psychologist, licensed counselor, social worker, physician, or nurse practitioner.
Not a website. Not a questionnaire. Not someone who has never spoken to you.
What federal law actually requires
Less than most people assume. There is no federal rule setting a minimum length for the professional relationship, no required form, and no register of approved practitioners.
HUD’s earlier guidance described what documentation should contain — your name, confirmation of a professional relationship, confirmation of an impairment, how the animal helps, and the practitioner’s signature, date and licensing details. It also made clear a practitioner could not be forced to use a specific form, provide a notarized statement, or disclose your diagnosis. That guidance has since been withdrawn, which leaves the federal picture thinner rather than tighter.
What fills the gap is the housing provider’s own judgment — and, in some places, state law.
What the states have done
Nineteen states have laws addressing fraudulent assistance animal claims in housing, according to the Animal Legal & Historical Center at Michigan State University:
Alabama · Arkansas · California · Colorado · Florida · Indiana · Kentucky · Louisiana · Minnesota · Missouri · Montana · North Dakota · Oklahoma · Pennsylvania · South Dakota · Tennessee · Virginia · Wisconsin · Wyoming
Most set out a procedure for requesting an assistance animal in housing and a penalty for claiming one fraudulently. Some specifically target health care providers who supply false documentation.
That’s 19 out of 50. In the other 31 states there is no state-level rule about who writes your letter. That does not make a bought letter safe — it means nobody has legislated about it yet, and a housing provider is still free to look at a letter from a site that has never spoken to you and draw the obvious conclusion.
Where these figures come from, and why it matters.
When I went looking for a state-by-state breakdown, every page on the first two screens of results was run by a company that sells ESA letters. Not one independent source among them.
That isn’t a coincidence. “ESA laws in [your state]” is a search made by someone who is about to spend money, so the pages answering it are written by the people hoping to take it. Several of them present their own product as though it were a legal requirement.
The numbers above come from the Animal Legal & Historical Center at Michigan State University College of Law, which has nothing to sell.
When you go and check your own state — and you should — look at who owns the page before you believe it. If there’s a “Get Your Letter” button anywhere on it, read the law itself instead. Your state legislature publishes it for free.
California, which is the strictest in the country
California is the outlier, not the norm, and it’s worth seeing what the strict end looks like — partly because it shows exactly what the letter mills can’t do.
AB 468, in force since 1 January 2022, requires that a practitioner providing ESA documentation must:
- hold a valid, active license, and state their license number, type, jurisdiction and effective date on the document
- be licensed in the jurisdiction where the client is located
- have had a therapeutic relationship with the client for at least 30 days before issuing it
- complete a clinical evaluation of that individual’s need for an emotional support dog
- give the person notice that fraudulently representing a dog as a service dog is a misdemeanor
Those requirements come from the California Board of Behavioral Sciences, and a practitioner who ignores them can be disciplined by their licensing board.
Don’t assume California’s rules apply where you live — in most states they don’t. But the 30-day requirement is worth carrying in your head wherever you are, because it names the thing that separates a real letter from a purchased one. A website that issues a letter in ten minutes has not had a relationship with you for 30 days, and could not meet that standard anywhere.
What a legitimate letter contains
Briefly: the practitioner’s letterhead, license number, license type and jurisdiction; a statement that you have a disability; a statement that the animal helps with it; the date and their signature. Your specific diagnosis is not required and does not need to be disclosed, and a housing provider may not demand your medical records.
The full checklist for judging a letter you have been given or sold is in ESA letters.
The registration industry, and why it isn’t one
There is no official registry of emotional support animals. No federal database, no certificate, no ID card that means anything. Every site offering to “register” your animal — usually for $50 to $200, often bundled with a vest and a plastic card — is selling printed material with no legal effect.
The tell is simple: a legitimate letter comes from someone who treats you. A site that sells you a letter and a vest in the same transaction is not treating you. Depression is the search term that industry targets hardest, and emotional support dogs for depression takes that apart alongside what the research really says.
Housing providers have gotten much better at spotting these, and in states with rules like California’s, an online questionnaire letter can be rejected outright for failing the licensing requirements. Paying for one can leave you worse off than having nothing, because it’s now on record that you tried.
The same industry runs a more damaging version in the service dog world. That’s covered in how to identify a fake service dog.
What the letter actually gets you in 2026
This is the part that has changed, and most articles haven’t caught up.
Housing — and what changed in May 2026
Housing runs on the Fair Housing Act. Under it a housing provider can be required to make a reasonable accommodation, which can mean allowing an animal in a building that otherwise says no pets.
The Act itself has not changed. Congress took no action, and the statute contains no requirement that an animal be trained.
What changed is who enforces it. On 22 May 2026, HUD’s Office of Fair Housing and Equal Opportunity issued an enforcement memorandum rescinding its earlier guidance and adopting a training-based standard aligned with the ADA. In practice:
- HUD will now generally find cause only where an animal is individually trained to do work or perform tasks related to a disability
- Untrained emotional support animals are no longer presumptively reasonable in HUD’s view
- The 2020 notice directing that pet fees be waived has been rescinded, and at least one court has since upheld a $400 animal fee
What you still have. The memorandum expressly preserves your right to bring a case yourself, generally within two years. State and local fair housing laws are unaffected, and several are stronger than the federal floor. If you live in public or federally assisted housing, Section 504 of the Rehabilitation Act is a separate route the memorandum specifically exempts.
There’s fuller detail, including what this means for trained service dogs, in can a landlord refuse a service dog.
Air travel — this ended in January 2021
Airlines are not required to accept emotional support animals as service animals, and haven’t been for five years.
Under the Department of Transportation’s final rule, effective January 2021, airlines only have to accept trained service dogs. An ESA may be treated as an ordinary pet — carrier, fee, and the cargo hold if it’s too big to fit under the seat.
Some airlines are more accommodating than others. Check with yours directly before booking, not with a blog.
Public access — never had it
An ESA may go where pets are allowed and nowhere else. Not grocery stores, not restaurants, not hotels, not workplaces. No vest, card or letter changes that. The restaurant question comes up more than all the others put together, so the full answer on ESAs in restaurants is set out on its own page.
If you need an animal that can come everywhere with you, what you need is a service dog, and the route there is different: do I qualify for a service dog.
The benefits, honestly
Everything above is about paperwork. It’s worth saying what an emotional support animal actually does, because the legal picture makes it sound like the whole point is a housing exemption, and it isn’t.
An animal in the house changes the shape of a day. Something needs feeding in the morning. Something is pleased when you come back. On the days when nothing else gets you upright, that can be the thing that does — and I say that as someone whose own dog was the reason I got out of bed for years.
That’s not a clinical claim and I’m not going to dress it up as one. The research on companion animals and mental health is genuinely mixed, and anyone quoting you a specific percentage improvement is overstating what’s known.
What can be said plainly: an ESA is a companion, not a treatment. It works alongside care from a professional, not instead of it. The people I’ve seen do best with one had both.
If you’re refused
- Get it in writing. Ask for the refusal and the reason by email. A refusal that only ever happened out loud is very hard to do anything about later.
- Keep everything — your request, the letter you sent, every reply, and the dates.
- Don’t give up the animal under pressure before you’ve had advice. That decision is very hard to reverse.
- Contact a fair housing organization or your state civil rights agency. State protection may be stronger than the federal position, and they’ll tell you for free whether you have something.
- A private claim is still available under the Fair Housing Act, generally within two years, regardless of what HUD will or won’t enforce.
Frequently asked questions
What are the requirements for an emotional support animal?
There is no application, license or registration. The requirement is that you have a disability and that a licensed professional who treats you states in writing that the animal helps with it. Some states add rules — California, for example, requires a 30-day therapeutic relationship and a clinical evaluation before a practitioner may issue ESA documentation. There is no training requirement and no breed or size restriction.
Do I need to register my emotional support animal?
No. There is no official registry of emotional support animals anywhere in the United States. Every website offering registration, certification or ID cards is selling a product with no legal effect, usually for $50 to $200. What has legal weight is a letter from a licensed professional who is actually treating you.
How do I get a legitimate ESA letter?
Ask the professional who already treats you — your therapist, psychiatrist, physician or licensed counselor. If you aren’t currently in treatment, that’s the place to start, not a website. A legitimate letter is on their letterhead, carries their license number and jurisdiction, states that you have a disability and that the animal helps, and is signed and dated.
Does an ESA letter expire?
There is no legal expiry date. A housing provider may reasonably ask for documentation that reflects your current situation, and many prefer a letter dated within the past year, but no law requires annual renewal. Any site telling you that you must renew every year is describing its own subscription, not the law.
Can I fly with my emotional support animal?
Not as a service animal. Since the Department of Transportation’s rule took effect in January 2021, airlines are only required to accept trained service dogs. An emotional support animal may be treated as an ordinary pet, meaning a carrier, a fee, and the cargo hold for larger animals. Policies vary by airline, so check directly before booking.
Can a landlord still refuse my emotional support animal?
The position changed in May 2026. The Fair Housing Act still requires reasonable accommodations and contains no training requirement, but HUD’s enforcement office now generally finds cause only where an animal is individually trained for a disability-related task, and it rescinded the 2020 guidance on waiving pet fees. You can still bring a case yourself, and state and local fair housing laws are unaffected — several are stronger than federal law.
Can my emotional support animal come into stores and restaurants?
No. Only trained service animals have public access rights under the ADA. An emotional support animal may go where pets are allowed and nowhere else, regardless of any vest, card or letter. Businesses are within their rights to refuse entry.
Does my emotional support animal need training?
Not to be an ESA — that’s the definition. But since May 2026, whether an animal is individually trained is what determines HUD’s position on a housing accommodation, so training has become more relevant than it used to be. An animal that is trained to perform a disability-related task may be a service dog rather than an ESA, with considerably stronger rights.
What kind of animal can be an emotional support animal?
There is no restriction by species, breed or size for an ESA in housing, though a housing provider can raise a genuine, specific concern about a particular animal. Dogs are by far the most common. If you’re choosing one, the 64 best emotional support dog breeds covers what actually suits different living situations.
I’m a service dog handler of twelve years, not a lawyer or a clinician. The legal statements here come from the ADA, the Fair Housing Act, HUD’s May 2026 enforcement memorandum, the Department of Transportation’s 2021 rule and the California Board of Behavioral Sciences, and each is linked in the text above so you can read it yourself. Disability law changes — this page is dated for that reason. If something here is wrong, tell me and I’ll fix it and note that I did.