ESA breed and size limits

Weight caps, size limits and lists of banned breeds are all pet policies. The Fair Housing Act treats it as unlawful to refuse reasonable changes to rules, policies, practices or services if such a change may be needed for someone with a disability to have an equal chance to live in and enjoy their home; the provisions are Title 42, section 3604(f)(3)(B), and HUD's rule at 24 CFR 100.204. A request can seek a waiver of a breed or weight restriction in the same way it can seek a waiver of a ban on pets.

Asking is not the same as being entitled to a yes. Each request is judged on whether the accommodation is necessary because of a disability and whether it is reasonable for that provider and that home.

Effective September 17, 2025, HUD withdrew FHEO-2020-01, its 2020 notice on assistance animals; HUD confirmed this in the Federal Register in April 2026. Articles written earlier that lean on that notice to claim breed and weight rules can never apply to assistance animals no longer reflect where federal guidance stands.

In guidance HUD released on May 22, 2026, requests involving animals individually taught to carry out tasks tied to a disability are presumed reasonable. Emotional support animals without such training get no presumption, so each request is judged on its own facts. Breed, size and weight aren't addressed by any specific rule in that guidance. It also points out that private lawsuits remain available and that HUD intends to write new rules, so expect further change.

A landlord isn't obligated under the Fair Housing Act to rent to a person whose tenancy would pose a direct threat to other people's health or safety, or would lead to substantial physical damage to someone else's property (Title 42, section 3604(f)(9)). The Joint Statement that HUD and the Justice Department issued in 2004 explains that deciding an animal is a direct threat requires an individualized assessment based on reliable, objective evidence rather than fear, speculation or stereotype, along with a look at whether some reasonable accommodation would remove the threat.

The ADA handles service dogs in a comparable way. According to ADA.gov, a service animal can't be turned away because of assumptions or stereotypes about its breed; what counts is how that particular animal actually behaves and has behaved. That rule applies to service animals in public places, not to ESAs, but it reflects how agencies approach breed and individual risk.

The AVMA's literature review on dog bites concludes that breed is a poor sole predictor of aggression and that it is inappropriate to predict a particular dog's behavior from its breed alone. It found no evidence that breed bans reduce the rate or severity of bite injuries, and it points to responsible ownership, supervision and enforcing general dog control laws instead.

Evidence about your own dog can help. Records of training classes, a behavior evaluation, a clean bite history and a vet's notes all speak to the specific animal rather than its breed.

Some providers say their liability insurance excludes certain breeds or large dogs. HUD's May 2026 guidance does not address insurance, and we did not find current federal guidance that settles how an insurer's breed exclusion affects an ESA request. The answer may depend on the facts, the policy terms and your state's law.

When insurance is the stated reason, you can reasonably ask the landlord to put the insurer's requirement in writing and whether a policy without that exclusion exists. Some renters also volunteer to buy their own renter's liability coverage. If you're unsure where you stand, a local attorney or fair housing group can advise you.

Some cities and counties restrict certain breeds by ordinance. Under the ADA, ADA.gov says a jurisdiction with a breed ban must make an exception for a service animal of a prohibited breed unless that dog poses a direct threat. That ADA exception does not extend to emotional support animals, and an ESA letter does not override a local animal ordinance. Check local rules before you sign a lease.

What a licensed therapist's letter does is document the disability-related need behind your request. ESA Letter Therapist charges $129 for a letter covering up to 2 animals, billed only when your letter is issued, but no one can promise that a landlord will lift a breed or weight restriction because of it.

• Explain the disability-related need for this particular animal
• Share vaccination, licensing and spay or neuter records
• Include training certificates or a behavior evaluation if you have them
• Offer reasonable steps such as leashing in common areas
• Check your state guide, since some states have their own ESA rules
• Keep all requests and replies in writing