The California Assistance Animal Checklist

Part 1 covered why HUD's May 2026 enforcement memo changed nothing about your obligations in California. The state defines assistance animals to include untrained support animals, and the California Civil Rights Department enforces that standard independently of HUD.

This is the operational half. What you do when the request actually arrives.

Seven things you do on every request

Log the request the day it arrives. Verbal counts. A text counts. "My doctor says I need my dog" counts. The clock starts when you're on notice, not when a form comes back. Note the date, who took it, and what was said.
Decide which animal you're dealing with — service or support. They run on different rules in California and you'll ask different questions.
Ask only what you're allowed to ask, in writing, once. The list is below.
Skip the questions entirely if the need is obvious. Visible disability, obvious task — you approve and move on. Asking anyway is its own violation.
Respond in writing within a reasonable time. The practitioner standard is 10 to 14 days. Silence is not a denial; it's an undue-delay claim you can't defend.
On approval: no pet rent, no pet deposit, no breed list, no weight cap, and no separate agreement that recategorizes the animal as a pet. The tenant remains liable for actual damage the animal causes — that's in your lease already and it's enough.
Keep the file. Request, your questions, their documentation, your written decision, and the date on each. If you ever need it, that file is the entire case.

What you may ask

Service animal. Only two questions are permitted: whether the person is an individual with a disability, and what disability-related task the animal has been trained to perform. You may not ask for a demonstration. No documentation, no certification, no vest — California does not require the animal to be professionally trained or certified, and the handler may have trained it themselves.

Support animal. You may request documentation from a reliable third party, and California defines that narrowly:

Under AB 468, the provider must hold a valid California license and must have had a client-provider relationship of at least 30 days before issuing the letter.
Under California's housing regulations, an online certification with no individualized assessment from a medical professional is presumptively not reliable third-party information.
The letter must reflect an actual assessment of this person — not a template with a name dropped in.

What you never ask

The diagnosis, or any medical records
"Prove she's trained" or "show me the task"
A specific proprietary form the tenant must use
A registration number, ID card, vest, or certificate
Anything at all, once the disability and the need are apparent

The four grounds that actually support a denial

Everything else is a losing argument.

Deficient documentation — the letter doesn't meet the California standard above. This is the common one, and it calls for a cure request, not a denial.
Direct threat — evidence of this specific animal's conduct. Bites, documented aggression, incident reports. Breed reputation is not evidence.
Substantial physical damage to property, again by this animal, evidenced.
Undue financial or administrative burden, or fundamental alteration — real, and rare. If you're reaching for this one, call counsel first.

Insurance is not on that list. Neither is "no pets," "the other tenants object," "we already allowed one," or "the animal is too large."

The simple way to do it: two letters

Most owners overcomplicate this and then improvise under pressure. Use two letters and you'll almost never improvise.

Letter One — the deficiency letter

Used when the documentation doesn't meet the California standard. It is not a denial. Three sentences:

We received your request on [date] and are processing it. The documentation provided does not indicate that the provider is licensed in California or has had a client relationship with you of at least 30 days, as California law requires. Please provide updated documentation within [10–14 days] and we will complete our review.

That's it. No accusations, no commentary on the animal, no mention of your pet policy.

Most online-mill letters die here without you ever denying anything. And if the tenant comes back with compliant documentation, you approve — which was the right outcome anyway.

Letter Two — the decision letter

Approval or denial, always in writing.

Approval is two lines: approved as a reasonable accommodation, no pet rent or deposit will be charged, standard damage responsibility under the lease continues.

Denial names one specific ground and one specific fact:

Your request is denied on the basis of [ground]. Specifically, [the single documented fact]. If circumstances change or you wish to provide additional information, we will reopen the interactive process.

That last sentence is not politeness. Leaving the process open is a large part of what keeps a denial defensible.

The one rule underneath all of it

Never deny by category. Deny by fact, in writing, on one ground, with the door left open.

A denial with a name, a date, and one documented reason survives review. A denial that says "we don't allow those" does not — and after May 2026, a fair number of California owners are going to write exactly that sentence because they read a national headline and thought it applied to them.