ESA Letter Requirements by State: What's Different Where You Live

Most ESA letter requirements are established by federal law — specifically the Fair Housing Act (FHA) and HUD guidance — which applies uniformly across all 50 states and the District of Columbia. But several states have enacted additional laws that affect how letters must be written, who can write them, or how housing providers must respond.

This guide explains the federal baseline that applies everywhere, then breaks down the states where additional requirements exist.

The Federal Baseline: What Every ESA Letter Must Include

Under the Fair Housing Act, a valid ESA letter must:

• Be based on a genuine clinical evaluation of the individual — not an online questionnaire with automatic approval

• Establish that the Emotional Support Animal provides direct therapeutic benefit for that disability

• Be signed by the clinician

These requirements apply in every state. A letter that fails any of them is legally vulnerable regardless of where the tenant lives.

What Housing Providers Can and Cannot Request

Understanding the federal baseline also means understanding what your landlord is entitled to ask for — and what they are not.

Landlords may request:

• Documentation from a licensed mental health professional establishing that you have a disability and that the ESA provides a disability-related benefit

Landlords may not request:

• Your specific diagnosis or mental health records

• Proof that your animal is trained, certified, or registered

• Additional fees or deposits specifically because of the ESA (though normal security deposits apply to all tenants)

States With Additional Requirements or Stronger Enforcement

California (AB 468 — Effective January 1, 2022)

California has enacted the most significant additional ESA letter requirements in the country. Under AB 468:

• The clinician must be licensed in California.

• The letter must include a statement that the clinician has established a bona fide patient-provider relationship.

Practical implication: A same-day ESA evaluation from a California-licensed clinician technically does not satisfy the 30-day relationship requirement. Responsible platforms serving California build in a compliant onboarding and relationship period. At ESA Letter Online, California evaluations are structured to meet AB 468 requirements fully.

New York

New York enacted legislation in 2021 specifically targeting "ESA certification mills" — businesses that generate letters through online forms without genuine clinical evaluation. The state has pursued enforcement action against several platforms. Requirements align with federal standards, but state enforcement is more active than most.

New York also has strong state-level fair housing protections under the New York State Human Rights Law (NYSHRL), which in some cases covers housing types that the federal FHA does not — including smaller housing providers the FHA exempts. This means New York tenants sometimes have broader state-law protections even where federal law doesn't apply.

Virginia

Virginia passed legislation in 2023 reinforcing the requirement for a genuine clinical relationship before an ESA letter may be issued. The statute targets instant-approval operations specifically. Virginia-licensed clinicians must document the clinical basis for their assessment.

Colorado

Colorado does not have state-specific ESA letter statutes beyond the federal baseline. However, Colorado's Fair Housing Act mirrors and in some respects expands the federal FHA, and the Colorado Civil Rights Division (CCRD) actively investigates fair housing complaints. Colorado tenants have both federal (HUD) and state (CCRD) enforcement avenues.

Illinois

Illinois does not have state-specific ESA letter requirements. However, the Illinois Human Rights Act provides broad fair housing protections, and the Illinois Department of Human Rights processes fair housing complaints in addition to HUD. Chicago has its own municipal fair housing ordinance with additional protections.

Washington State

Washington does not have specific ESA letter statutes, but the Washington State Human Rights Commission enforces the Washington Law Against Discrimination, which covers housing broadly. The state is a useful reminder that many states with no specific ESA statute still have robust state fair housing enforcement.

Florida

Florida has no state-specific ESA letter requirements beyond the federal baseline. It is worth noting that Florida has an unusually high concentration of homeowner associations (HOAs) — and HOAs are bound by the FHA's reasonable accommodation requirements just as traditional landlords are. If an HOA has a no-pets policy, you can request an ESA accommodation under the same federal framework.

Texas

Texas does not have state-specific ESA letter requirements. Texas courts have, however, been active in cases involving fraudulent ESA documentation, and property managers in major Texas metros have become more sophisticated about evaluating letters. A compliant letter from an in-state licensed clinician holds up well.

Maryland

Maryland does not have specific ESA letter statutes but has strong state-level fair housing enforcement through the Maryland Commission on Civil Rights (MCCR). Maryland's state law mirrors the FHA and covers some housing situations the federal law exempts.

What "Licensed in Your State" Actually Means

A commonly overlooked requirement: the clinician who writes your ESA letter must be licensed in the state where you currently reside — not where they are located, not where they primarily practice.

A psychologist licensed in New York cannot legally provide mental health services — or write an ESA letter — to a client who resides in Florida. Telehealth does not change this. Every U.S. state licenses mental health professionals independently, and each clinician's scope of practice is defined by their state license.

Telehealth platforms that serve clients nationally must maintain rosters of licensed clinicians in each state. ESA Letter Online matches you with a clinician who holds an active license in your state of residence.

What Happens When You Move States?

Your existing ESA letter does not automatically become invalid when you move — but it becomes more complicated.

First, the clinician who wrote it may no longer be able to provide ongoing care for you if they are not licensed in your new state. Second, some housing providers will want documentation from a clinician familiar with your current situation, particularly if the letter is several years old.

If you move, it is generally worth obtaining a new evaluation from a clinician licensed in your new state. This provides documentation that is current and clinician-licensed in the right jurisdiction.

Quick Reference: States With Notable Rules or Enforcement

| State | Additional Requirements | State Enforcement Agency | |---|---|---| | California | 30-day relationship requirement (AB 468) | Department of Consumer Affairs (licensing), DFEH (housing) | | New York | Active enforcement against mills | NYS Division of Human Rights | | Virginia | Clinical relationship documentation required | Virginia Department of Professional and Occupational Regulation | | Colorado | Standard FHA + active state enforcement | Colorado Civil Rights Division | | Illinois | Standard FHA + municipal ordinances | Illinois Department of Human Rights | | Florida | Standard FHA; HOAs fully covered | Florida Commission on Human Relations | | Texas | Standard FHA; active fraud enforcement | Texas Workforce Commission Civil Rights Division | | All others | Federal FHA baseline | HUD / local fair housing organizations |

Getting a State-Compliant Letter

The most reliable path: work with a licensed clinician in your state who conducts a genuine evaluation and documents the clinical basis for the letter. This satisfies federal requirements in every state and, with proper attention to state-specific requirements (especially California), local requirements as well.

Start your evaluation here — we match you with a clinician licensed in your state. Review our free ESA rights checklist to understand your rights as a tenant before and after you receive your letter. If you're in California, our California ESA letter guide covers what to look for specifically. For New York residents, see our New York ESA letter guide. For Texas, see our Texas ESA letter guide.

For more on tenant rights when submitting your letter, see Can Landlords Deny an ESA Letter? and What Happens If Your Landlord Ignores Your ESA Request?.