Q: Can my therapist write me an emotional support animal letter?

A: Yes, and California law sets out what they must do first. It also matters more than usual where you plan to use it, because the three places people want to use one — housing, shops and restaurants, and aeroplanes — are governed by three different bodies of law, and in two of them an ESA letter does nothing at all. Federal housing enforcement also changed twice in the last year, in a direction that surprised almost everyone. California's rules did not change with it.

Housing in California: still protected, and the details are specific

Under the state's fair-housing regulations, an assistance animal is not a pet. The regulations split them in two: service animals, trained to perform tasks for a person with a disability — and California, unlike federal disability law, does not require that training to be professional or the animal to be a dog — and support animals, which "provide emotional, cognitive, or other similar support" and expressly "do not need to be trained or certified."¹

If the accommodation is granted, the specifics are worth memorising:

  • No pet fee, additional rent, additional security deposit or liability insurance may be charged for an assistance animal.²
  • No breed, size or weight limits may be applied to one.²
  • Vests, identification cards and certificates "are not in and of themselves documentation" of a disability or of the need for the animal.²
  • You can be charged for actual damage the animal causes, excluding ordinary wear and tear, and more than one assistance animal is permitted, each assessed individually.²

On the letter itself. A support-animal certificate from an online service that does not include an individualised assessment from a medical professional is presumptively not reliable information.³ But the same regulation carries a sentence that most reporting on it leaves out: a housing provider given that kind of certificate must give you a chance to provide better documentation before denying the request.³ An individualised assessment means something that shows you have a disability, describes the accommodation — including the species of animal — and explains how the animal is necessary because of the disability.³

On what a landlord may ask. For a support animal they may not demand your diagnosis, the severity of your condition, your medical records or your medical history.⁴ Disability itself can be shown by a credible statement, by documentation of disability benefits, or by any reliable third party in a position to know — which the regulation says expressly includes a health care provider and even a peer support group.⁴ Requests must be considered promptly; there is no fixed number of days in California law, and an undue delay can itself be a denial.⁵

Grounds for a lawful denial are: no disability; no connection between the disability and the animal; a fundamental alteration; an undue financial or administrative burden; or a direct threat or substantial property damage — and that last one requires an individualised assessment based on objective, recent evidence about that specific animal's actual conduct, not on fear about the breed or about what other animals have done.⁶

What changed federally, and why it does not change California

The federal guidance most ESA advice is built on — HUD's January 2020 assistance-animal notice — was withdrawn on 17 September 2025 and removed from HUD's website.⁷ Then, on 22 May 2026, HUD's Assistant Secretary for Fair Housing issued enforcement guidance stating that for animal-related accommodation complaints the office "will find reasonable cause and recommend charges only for those cases involving animals trained to provide disability-related assistance," permanently rescinding the 2020 notice and adopting the training component of the disability-access definition.⁸ In plain terms: for an untrained emotional support animal, HUD is no longer the route.

California's Civil Rights Department said so directly. In a legal alert issued 20 July 2026 in response to that memo, CRD stated that state fair-housing law "still requires housing providers to allow people with disabilities to have emotional support animals that have not been trained or certified, despite HUD's recent guidance," that waivers of no-pets policies, pet fees and breed restrictions remain required for assistance animals including ESAs, and that "HUD's new guidance has no impact on the nature or types of complaints CRD will accept and enforce."⁹

Two honest caveats. HUD's memo is enforcement discretion, not a regulation — it says HUD intends future rulemaking, and it expressly preserves your right to bring a private federal fair-housing action in court within two years.⁸ And California's protection comes from the Fair Employment and Housing Act and its regulations — not from the Disabled Persons Act, which by its own terms does not require a landlord who refuses dogs to accept a tenant's dog except for guide, signal and service dogs.¹⁰

So: if you are in California and a landlord denies an untrained support animal, the complaint goes to the Civil Rights Department, not to HUD.

What your therapist has to do before writing it

California regulates the writer, not the animal. A licensed health care practitioner may not provide documentation about a person's need for an emotional support dog unless they do all of the following:¹¹

  1. Hold a valid, active licence — and include the effective date, licence number, jurisdiction and licence type in the document itself.
  2. Be licensed to practise in the jurisdiction where the documentation is provided.
  3. Have established a client–provider relationship for at least 30 days beforehand — with an exception, added in 2022 and still missing from most published guidance, for individuals verified to be homeless.
  4. Complete a clinical evaluation of the person regarding the need for the dog.
  5. Give the person verbal or written notice that fraudulently passing an animal off as a service dog is a misdemeanour.

Three things about that list. It reaches dogs, not cats or other animals. It is not limited to sales — it covers a housing letter. And the sanction for a practitioner who ignores it is discipline by their licensing board; the $500/$1,000/$2,500 civil penalties in the same article apply to sellers of ESA dogs and paraphernalia and to fraudulent representation, not to the clinician.¹² The statute contains no rule making a non-compliant letter void, and the article expressly preserves existing accommodation rights.¹² Registered associates are covered along with licensees, and the board has said the law prescribes no specific number of sessions inside those 30 days.¹³

Where the letter is worth nothing

Shops, restaurants, hotels, offices. Federal disability law defines a service animal as a dog individually trained to do work or perform tasks — and states outright that "the provision of emotional support, well-being, comfort, or companionship do not constitute work or tasks."¹⁴ A business may ask only two questions, may not require documentation of any kind, and may exclude the animal only if it is out of control and the handler does not act, or if it is not housebroken.¹⁴ California's public-accommodation statutes protect guide, signal and service dogs, not ESAs, and knowingly and fraudulently presenting yourself as the owner or trainer of a service dog is a misdemeanour carrying up to six months in county jail, a $1,000 fine, or both.¹⁵

A psychiatric service dog is a different animal, legally. A dog individually trained to interrupt a dissociative episode, perform deep-pressure work on cue, retrieve medication or guide a disoriented handler is doing work under that definition — and no business may demand paperwork for it.¹⁴

Aeroplanes. Since January 2021, federal rules define a service animal as a dog, and say in terms that "emotional support animals, comfort animals, companionship animals, and service animals in training are not service animals."¹⁶ An airline may treat an ESA as a pet, with pet fees and carrier rules. For a psychiatric service dog the airline may require the Department of Transportation service-animal form — completed on or after the date you bought the ticket — and, on flights of eight hours or more, a relief-attestation form. It may not require anything beyond those two forms, so no therapist letter is needed, and it may not deny transport based on the dog's breed or type.¹⁶

Two more things to know

There is no registry. No federal or California register of emotional support animals, assistance animals or service animals exists. A business is forbidden to require certification, an airline is forbidden to require anything beyond the two forms, and California's housing regulation says vests, ID cards and certificates are not documentation.² A "national ESA registry" is a product for sale, not a legal status.

A letter is not a guarantee. It starts an interactive process that is subject to the defences listed above, and small or owner-occupied properties may fall outside coverage entirely.

Do this: ask your own therapist rather than an online service — the regulation makes the online certificate presumptively unreliable and the state statute requires a 30-day relationship and a clinical evaluation anyway. Make sure the letter carries their licence type, number, jurisdiction and effective date, names the species, and explains the connection between the disability and the animal without disclosing your diagnosis. Send the request in writing and keep the date. If it is denied, the California Civil Rights Department is the place to file. What a therapist's note can and cannot be made to say at work →

Sources

  1. 2 CCR §12005(d), (d)(1)–(2) — "An assistance animal is not a pet"; service animals "do not need to be professionally trained or certified, but may be trained by the individual with a disability or another individual"; support animals "provide emotional, cognitive, or other similar support to an individual with a disability" and "[a] support animal does not need to be trained or certified." Note that the animal-specific rules are regulatory: neither Government Code §12927 nor §12955 contains the terms "assistance animal" or "support animal."
  2. 2 CCR §12185(d)(2), (d)(3), (d)(4), (d)(5) and (d)(7).
  3. 2 CCR §12185(c)(2).
  4. 2 CCR §12178(a)–(f).
  5. 2 CCR §12177(d)–(e).
  6. 2 CCR §12176(a), §12179(a) and §12185(d)(9).
  7. U.S. Department of Housing and Urban Development, "Notice of the Withdrawal of FHEO Guidance Documents," 17 September 2025, withdrawing FHEO Notice 2013-01 and FHEO-2020-01 and stating that they "have been removed from the HUD.gov website" — hud.gov. The 2020 notice and its fact sheet now return 404 at their former addresses; we checked on 18 August 2026.
  8. HUD, Office of Fair Housing and Equal Opportunity, "Enforcement Guidance — Assessing Requests for the Use of an Animal as a Reasonable Accommodation Under the Fair Housing Act," 22 May 2026 — hud.gov. It states the intention to conduct notice-and-comment rulemaking and that "[n]othing in this enforcement guidance affects the rights of parties to seek redress through a private action in court," citing the two-year limit at 42 U.S.C. §3613(a)(1)(A).
  9. California Civil Rights Department, Legal Alert No. CRD 2026-01, "Compliance with state fair housing laws with regard to emotional support animals," 20 July 2026 — calcivilrights.ca.gov.
  10. Civil Code §54.1(b)(5)–(6).
  11. Health & Safety Code §122318(a)(1)–(5), as amended by SB 774 (Stats. 2022, Ch. 550) — leginfo.legislature.ca.gov. The homeless exception is §122318(a)(3)(B), which allows verification through a Homeless Management Information System, a continuum of care or contracted homeless services provider, or visual confirmation by a homeless services provider.
  12. Health & Safety Code §122318(b)–(c); §122317 (the seller's written-notice duty, in at least 12-point bold type); §122319(a)(1)–(2) (civil penalties, enforceable by the Attorney General, a district attorney, county counsel or a city attorney) and §122319(b) (nothing in the section restricts or changes existing rights to reasonable accommodation and equal access to housing). "Emotional support animal" is defined at §122319.5 as an animal that "does not need to be trained or certified."
  13. Board of Behavioral Sciences, "Law Change Regarding Emotional Support Animals: What BBS Licensees Need to Know" — bbs.ca.gov. Note that this document predates the 2022 homeless exception and does not mention it.
  14. 28 C.F.R. §36.104 (definition of "service animal") and §36.302(c)(2), (c)(6), (c)(8) — ecfr.gov.
  15. Civil Code §54.1(b)(6)(C)(iii), §54.2(b); Penal Code §365.7(a).
  16. 14 C.F.R. §382.3 (definition), §382.72 (no breed-based denial), §382.73(a)(1) (the two questions), §382.75(a)–(c) (the two Department of Transportation forms, and that a carrier "is not permitted to require documentation … beyond the completion of the forms"), §382.79 and §382.80 — adopted in the final rule "Traveling by Air With Service Animals," 85 Fed. Reg. 79742 (10 December 2020), effective 11 January 2021.

All statutes and regulations read on the operative text on 18 August 2026. This page describes the law; it is not legal advice.

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