# Which Animals Can Be an ESA, and How Many Can You Have?

> Federal housing law names no species and sets no numeric cap. What it does require is a separate documented need for each animal you ask to keep.

- Source: https://supportanimal.com/blog/articles/what-animals-can-be-an-esa/
- Publisher: Support Animal (supportanimal.com)
- Updated: 2026-07-29
- License note: informational content; not legal or medical advice.

- Author: Support Animal Editorial Team (Reviewed by licensed providers)
- Published: 2026-07-29

Federal housing law does not contain a species list. The Fair Housing Act
never mentions animals at all — it requires a housing provider to make
reasonable accommodations in rules, policies, practices, or services, and
HUD's regulation at 24 C.F.R. § 100.204 illustrates that duty with a
seeing eye dog and a reserved parking space. Everything people believe
about which animals are "allowed" comes from somewhere else, and usually
from a statute that governs a different setting entirely.

Sorting out where each rule applies answers both halves of the question.

## Species: three different federal rules, three different answers

| Setting | Governing rule | Species allowed |
|---|---|---|
| Your home | Fair Housing Act, 42 U.S.C. § 3604(f)(3)(B) | No species named in the statute |
| Stores, restaurants, hotels | 28 C.F.R. §§ 35.104, 36.104 | Dogs only, plus trained miniature horses |
| Airplane cabin | 14 C.F.R. § 382.3 | Dogs only |

The ADA regulation is blunt about it: a service animal is "any dog that is
individually trained to do work or perform tasks," and "other species of
animals, whether wild or domestic, trained or untrained, are not service
animals for the purposes of this definition." Miniature horses get a
separate provision at 28 C.F.R. § 36.302(c)(9), which lets a business
assess four things — the animal's type, size, and weight; whether the
handler has sufficient control; whether it is housebroken; and whether its
presence compromises legitimate safety requirements.

Air travel is narrower still. The Department of Transportation's
definition at 14 C.F.R. § 382.3 covers dogs and states that emotional
support animals, comfort animals, companionship animals, and service
animals in training are not service animals for that part.

Housing is the outlier, and it is the outlier in the direction renters
care about.

## The federal guidance on species was withdrawn

FHEO Notice 2020-01, the January 2020 assistance animal guidance, no longer
stands. HUD's fair housing office withdrew it — and the 2013 notice it had
replaced — as of September 17, 2025, in a notice appearing at 91 FR 17291.

The withdrawn notice was where the familiar sorting of "common household
animals" against unusual species lived. With it gone, there is no federal
guidance document setting out how a housing provider should treat a request
for a rabbit rather than a dog.

Two federal pieces did survive, because they are regulations rather than
guidance:

- **The accommodation duty.** 24 C.F.R. § 100.204 requires reasonable
  accommodations in rules, policies, practices, or services where necessary
  to afford a person with a handicap equal opportunity to use and enjoy a
  dwelling. Nothing in it limits the animal to any species.
- **HUD-assisted housing.** 24 C.F.R. § 5.303 provides that HUD's pet rules
  "do not apply to animals that are used to assist, support, or provide
  service to persons with disabilities," and that project owners and public
  housing agencies "may not apply or enforce any policies established under
  this subpart" against them.

Where a species question needs a clear answer today, the reliable source is
a state statute rather than a federal notice.

## The species that actually work in practice

Dogs and cats dominate real requests, and they do so for boring, practical
reasons: local ordinances permit them, veterinary care is routine,
landlords understand them, and neither needs a habitat that alters the
unit. Rabbits, small birds, guinea pigs, hamsters, and rats appear
regularly and rarely cause a fight.

Things get harder as you move outward, and the obstacles usually are not
fair housing law at all:

- **Local animal-control ordinances.** Cities and counties routinely ban
  or license particular species, and fair housing law does not override an
  ordinance that applies to everyone in town.
- **Habitat requirements.** An animal that needs a tank, an enclosure, or
  a heat lamp raises legitimate questions about property alteration and
  fire safety.
- **Damage and nuisance risk.** A landlord may deny an accommodation where
  the animal poses a direct threat or a threat of substantial property
  damage that no other accommodation can address.

Florida's statute puts the practical filter in writing. Fla. Stat.
§ 760.27 lets a housing provider require proof of compliance with state
and local licensing and vaccination requirements, which quietly resolves
most exotic-animal requests without anyone arguing about disability at
all. The [Florida ESA rules](/blog/florida-emotional-support-animal/)
cover the rest of that statute's request-and-response framework.

## How many animals: no cap, but no free pass either

There is no number in the Fair Housing Act, and no number in HUD's
regulations. What replaces a number is a simple principle: each animal has
to be justified on its own.

That is the point where multi-animal requests usually collapse. A letter
that says "the tenant benefits from her animals" covers no animal
specifically. A letter that explains what the second animal does that the
first does not is a different document.

State law shows the same logic from two directions:

- **Florida** authorizes a housing provider to request information about
  the specific need for each animal when a tenant asks to keep more than
  one, under Fla. Stat. § 760.27.
- **California** runs it the other way: a landlord cannot cap a household
  at a single animal when more than one has a documented
  disability-related need. See the
  [California ESA guide](/blog/california-emotional-support-animal/) for
  how FEHA and Cal. Health & Safety Code § 122318 interact.

HUD's 2026 memo pointed at the failure mode directly, noting that its
appendix included "two examples of meritless cases involving multiple
emotional support animals that FHEO recently dismissed." Whatever you make
of the policy shift, that is a useful signal about which requests get taken
seriously.

## What a housing provider may legitimately ask about the animal

A provider assessing a species or a count is not entitled to your medical
history, and several states say so in statute. Florida's § 760.27(3) bars
a housing provider from requesting information that discloses the
diagnosis or the severity of a disability, or any medical records, and
bars requiring a specific form or a notarized statement. What a provider
can ask about is the animal: what it is, whether local licensing and
vaccination rules are met, and — where more than one animal is requested —
what each one does.

That distinction is worth rehearsing before the conversation, because
tenants often answer the wrong question. "She helps with my panic attacks
and he wakes me from nightmares" answers the animal question for two
animals. "I have been diagnosed with two conditions" answers a question
nobody is allowed to ask.

## Reality checks that apply to every species and number

**Size is not a species argument.** A landlord cannot apply a weight cap
or a breed list to an approved assistance animal, but a genuinely
oversized animal in a very small unit can raise an undue-burden question
that a Chihuahua never will.

**Numbers interact with local law.** Many municipalities limit how many
animals a household may keep. New York City renters have an unrelated but
useful protection in N.Y.C. Admin. Code § 27-2009.1, the three-month open
and notorious pet rule described in the
[New York ESA guide](/blog/new-york-emotional-support-animal/).

**No credential fixes any of this.** No agency issues an ESA registry
entry, an identification card, or a certificate with legal force, and
buying one for each of three animals simply triples the amount of paper
that means nothing. Florida legislated the point at § 760.27(3)(c), which
says an identification card, patch, certificate, or similar registration
obtained from the internet is not by itself sufficient information. Texas
reaches the same place through Tex. Hum. Res. Code § 121.002, which
defines assistance and service animals as specially trained canines — see
the [Texas ESA guide](/blog/texas-emotional-support-animal/).

**Damage liability follows every animal.** The rule against pet deposits
has never been a rule against paying for harm. A tenant remains
responsible for what any animal actually damages, and with three animals
that exposure is simply larger.

## Before you ask for a second animal

Ask a licensed provider to address each animal separately, in its own
sentences, tied to a distinct symptom or function. Check your city's
animal-control ordinance before you check your lease. Confirm licensing and
vaccination for every animal in the household. And keep the request in
writing, so that if the answer is no, you know which animal was refused
and why. The related mechanics of a denial are covered in
[can a landlord deny an emotional support animal](/blog/articles/can-landlord-deny-emotional-support-animal/),
and the underlying housing framework in
[ESA housing rights under the Fair Housing Act](/blog/articles/esa-housing-rights-fair-housing-act/).

## Frequently asked questions

### Can a cat be an emotional support animal?

Nothing in fair housing law restricts the species, so cats are among the most commonly documented emotional support animals. The ADA is the rule that limits things to dogs, and the ADA governs public places rather than your home.

### How many emotional support animals can one person have?

No federal statute sets a number. Each additional animal has to carry its own disability-related justification, and a request for several animals with one blanket explanation is the version that tends to fail.

### Can a rabbit or a bird qualify?

Both are ordinary household animals and both appear in real accommodation requests. The practical questions are whether local ordinances allow the species and whether the animal can live in the unit without damage or nuisance.

### Are exotic or farm animals ever accepted?

Rarely, and never automatically. Local animal-control ordinances frequently prohibit the species outright, and a housing provider can reasonably ask why that particular animal, rather than a common household one, is necessary.

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