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United States · federal law

Do I need to register my service dog in the United States?

Verifiedlast reviewed 24 Sept 2026

No. Under the ADA, registration as a service dog cannot be required, and no business open to the public and no state or local government office may make it a condition of letting you in.

The Department of Justice, which enforces the ADA's rules for businesses and for state and local governments, answers the question in its own words:

"Mandatory registration of service animals is not permissible under the ADA. However, as stated above, service animals are subject to the same licensing and vaccination rules that are applied to all dogs." — ADA.gov, Frequently Asked Questions about Service Animals and the ADA, Q20

Read both sentences. Under the ADA, registration as a service dog cannot be required. Your city's ordinary dog licensing and registration, and its vaccination rules, still apply to your dog like any other: "Service animals are subject to local dog licensing and registration requirements" (ADA.gov FAQ, Q19).

That is the whole answer. The rest of this page is the detail — what a business may actually ask you, what the websites selling registration are selling, the one public setting where a document can be required, and where a record genuinely earns its place.

What the law says a business may ask

The ADA's regulation for businesses open to the public is short on this point, and it is worth reading the regulation itself rather than anyone's summary of it:

"A public accommodation shall not ask about the nature or extent of a person's disability, but may make two inquiries to determine whether an animal qualifies as a service animal. A public accommodation may ask if the animal is required because of a disability and what work or task the animal has been trained to perform. A public accommodation shall not require documentation, such as proof that the animal has been certified, trained, or licensed as a service animal. Generally, a public accommodation may not make these inquiries about a service animal when it is readily apparent that an animal is trained to do work or perform tasks for an individual with a disability (e.g., the dog is observed guiding an individual who is blind or has low vision, pulling a person's wheelchair, or providing assistance with stability or balance to an individual with an observable mobility disability)." — 28 CFR § 36.302(c)(6)

State and local government is bound by the same rule, in the ADA's regulation for public entities: "A public entity shall not require documentation, such as proof that the animal has been certified, trained, or licensed as a service animal" (28 CFR § 35.136(f)). Federal agencies are not covered by the ADA. The Department of Justice asks "Do Federal agencies, such as the U.S. Department of Veterans Affairs, have to comply with the ADA?" and answers "No. Section 504 of the Rehabilitation Act of 1973 is the Federal law that protects the rights of people with disabilities to participate in Federal programs and services." (ADA.gov FAQ, Q36.)

Two questions. No paperwork. The Department of Justice's guidance says the same thing from the other side: "Staff are not allowed to request any documentation for the dog, require that the dog demonstrate its task, or inquire about the nature of the person's disability" (ADA.gov FAQ, Q7), and "The ADA does not require service animals to wear a vest, ID tag, or specific harness" (Q8).

The service-animal rule itself names two reasons a business may ask you to remove the dog: it "is out of control and the animal's handler does not take effective action to control it", or it "is not housebroken" (28 CFR § 36.302(c)(2)). Other parts of the ADA's rules can also apply, which our guide on what a business can ask names.

Who trained the dog does not matter. Whether it is trained does

The Department of Justice asks "Does the ADA require service animals to be professionally trained?" and answers:

"No. People with disabilities have the right to train the dog themselves and are not required to use a professional service dog training program." — ADA.gov FAQ, Q5

The training has to be done, though. Asked whether dogs still in training count, it answers: "No. Under the ADA, the dog must already be trained before it can be taken into public places. However, some State or local laws cover animals that are still in training." (Q6.)

So what are all those websites selling?

Products. ID cards, certificates, vests, and a database entry.

The Department of Justice addresses those sites directly:

"There are individuals and organizations that sell service animal certification or registration documents online. These documents do not convey any rights under the ADA and the Department of Justice does not recognize them as proof that the dog is a service animal." — ADA.gov FAQ, Q17

That sentence describes us too. ServDog is a private registry. Nothing we issue conveys a legal right, and no business is obliged to accept it. We say that here because the alternative is to sell you something under a false description. What a registry can give you is the record itself — and that is worth having for reasons that have nothing to do with getting through a door.

Voluntary registries exist, and that is different

Some cities and colleges keep a voluntary list of service animals. The Department of Justice says those are permitted, describes why they exist, and draws one line:

"Many communities maintain a voluntary registry that serves a public purpose, for example, to ensure that emergency staff know to look for service animals during an emergency evacuation process. Some offer a benefit, such as a reduced dog license fee, for individuals who register their service animals. Registries for purposes like this are permitted under the ADA. An entity may not, however, require that a dog be registered as a service animal as a condition of being permitted in public places. This would be a violation of the ADA." — ADA.gov FAQ, Q21

A voluntary record is lawful. A required one is not. No city, business or website can make registration the price of entry.

One public setting where a document can be required: the aircraft

Airlines are not covered by the ADA. The Department of Justice asks "Do commercial airlines have to comply with the ADA?" and answers "No. The Air Carrier Access Act is the Federal law that protects the rights of people with disabilities in air travel." (ADA.gov FAQ, Q37.) Under that Act an airline may require a document before the dog travels in the cabin — the government's own form, filled in by you:

"If a passenger with a disability seeks to travel with a service animal, you may require the passenger to provide you, as a condition of permitting the service animal to travel in the cabin, a current completed U.S. Department of Transportation Service Animal Air Transportation Form." — 14 CFR § 382.75(a)

On a flight segment scheduled to take eight hours or more, the airline may also require a second DOT form, the Service Animal Relief Attestation Form (§ 382.75(b)). Beyond those two:

"You are not permitted to require documentation from passengers with disabilities traveling with service animals beyond the completion of the forms identified in paragraphs (a) and (b) of this section except to comply with requirements on transport of animals by a Federal agency, a U.S. territory or a foreign jurisdiction." — 14 CFR § 382.75(c)

So the airline may ask for the DOT forms, and for whatever a federal agency, a US territory or a foreign jurisdiction requires for moving an animal — another country's import rules, for example. It may not require a registration, a certificate, or a card from anyone, including from us. The DOT form asks you to attest to your dog's health, behaviour and training yourself; it is the government's form, not a private one, and no registry's record stands in for it.

Housing runs on different law

Housing is mainly governed by the Fair Housing Act, and the ADA also applies to some housing — the Department of Justice gives public housing authorities and public and private universities as examples (ADA.gov FAQ, Q35). The Fair Housing Act's rules for assistance animals are different from the ADA's for public places, and they need a page of their own. This page is about public places and air travel, and a landlord conversation should not be run on it.

Be careful with the words "service dog" in your state

Many states have their own laws against representing a pet as a service animal, with penalties. The ADA says what a business may ask; state law can say what happens to someone who lies in reply. Our guide on taking a Canadian service dog to the United States carries the figure that is available for how many states have such laws, labelled with its source; it is not a government count and we do not repeat it here as one. The short version: do not describe a dog as a service dog unless it is trained to do work or perform tasks for your disability. That is the ADA's own definition, and it is what the two questions are for.

Then why would anyone keep a record at all?

Because a record and a permission slip are different things.

Reasons people keep one:

  • The second question — "what work or task has the dog been trained to perform?" — is, in the Department of Justice's words, one of the "only two specific questions" a business may ask when it is not obvious that the dog is a service animal (ADA.gov FAQ, Q7). Some people prefer to have a written, dated answer in their own words ready rather than compose one at a counter.
  • The DOT form. It asks you to attest to your dog's health, behaviour and training. Your own training notes can help you fill it in accurately.
  • Your dog gets lost. A tag with a scannable code can reach you if you choose to show a way to contact you on what it opens.
  • A landlord asks for documentation under the Fair Housing Act and you want your health care provider's letter somewhere you can find it.

Those are real. "It will get you into shops" is not, and nothing we issue does.

What actually helps

  1. Know the two questions and have your answer to the second one ready. A business may ask you for an answer; it may not ask you for a document.
  2. Work out which category your dog is in. Under the ADA, "The crime deterrent effects of an animal's presence and the provision of emotional support, well-being, comfort, or companionship do not constitute work or tasks for the purposes of this definition" (28 CFR § 36.104). An emotional support animal has no ADA access rights in a public place, whatever a website sold you.
  3. If you fly, fill in the DOT form — it is the government's form. Beyond it, an airline may require only the relief form on flight segments of eight hours or more, and what a federal agency, a US territory or a foreign jurisdiction requires for moving an animal (14 CFR § 382.75(b)–(c)).
  4. Keep records of your dog's training and the tasks it performs, somewhere you can reach them the moment you are asked.
  5. Check your state's law on misrepresentation before describing any dog as a service dog.
  6. Licence your dog the way your city requires of every dog. A service dog is not exempt.

Last reviewed: 24 September 2026.

Corrections and updates

  1. 23 September 2026Founder decision, 23 September: the clause saying ServDog is not yet open in the United States is deleted. The US launches with registration, so the sentence would be false on launch day, and a country-status sentence on a law page goes stale every time the status changes. Nothing else in the paragraph moved and no quotation was touched. The US openness switch this rested on is retired, which he was told he was agreeing to.
  2. 22 September 2026Second read, 22 September. The opening no longer says "nowhere in the United States": it says what the ADA allows, since states, territories and federal property were not checked one by one. "The one place a document can be asked for" became "one public setting where a document can be required". An airline "may not require", not "may not ask for", as § 382.75(c) reads. "At all" cut from the Q36 sentence.
  3. 22 September 2026Strategy's pass on the still-open items of the 22 September second check. The opening now names businesses and state and local government, with 28 CFR § 35.136(f) quoted, and says federal agencies fall under Section 504 (Q36). A new section quotes Q5 (owner training) and Q6 (dogs in training). The § 36.104 fragment is now its full sentence. "At the top of the page" and "or any state law" cut from the product paragraph. The unsourced HUD-change clause and the two links to /us/ pages that do not exist were removed. The lost-dog line now says the code reaches you only if you show a contact; the vet line cut.
  4. 22 September 2026Verification-pack pass: every quotation re-matched against its live source in the browser. The Q37 quotation joined the FAQ's question and answer and dropped the answer's "A." label; now quoted as question and answer. "Hawaii's animal rules" removed from the § 382.75(c) sentence (Hawaii is a state; (c) names federal agencies, US territories and foreign jurisdictions). Step 3 said the DOT form is "the only kind of document an airline may require", contradicting § 382.75(b)–(c); corrected. The sentence saying the terminal check-in desk and gate run on the ADA was removed — the airline's own rules reach its gate area (14 CFR §§ 382.27(b)(3), 382.73). "Only two lawful reasons" became "the service-animal rule itself names two reasons", as the business guide's second read had it. The second question is now quoted in the source's lower case and attributed to Q7. "Health" added to what the DOT form attests. "University dormitories" became Q35's "public and private universities". "Foreign country" became "foreign jurisdiction" and "flight" became "flight segment", as the rule reads. The opening now says registration "as a service dog", and FAQ Q19 is quoted: service animals are subject to local dog licensing and registration requirements. The product line now says ServDog is not yet open in the US. transportation.gov added to primary_sources, since the DOT form's contents are described from it.
  5. 21 September 2026v3 — housing paragraph rewritten after HUD's 22 May 2026 enforcement guidance was found (claude/legal-monitoring-us-2026-09-21.md); now links the housing draft.
  6. 20 September 2026v2 after the adversarial second read — see the editor's note for what changed. misrepresentation_law set to false; it is a state-level matter and the flag reads as federal on a country: US page.
  7. 20 September 2026New page. First guide for /us/, per plan §10 (guides before law pages). Quotations from ADA.gov and the eCFR captured verbatim in claude/research-us-federal-source-captures-2026-09-20.md.

This is legal information, not legal advice.

What ServDog is

ServDog is a private registry. It is not a government agency, is not affiliated with any provincial program, the Canadian Transportation Agency, or the ADA, and registration does not create or confer any legal rights.

  • Registration as a service dog is not required under the ADA.
  • Nothing we issue conveys rights.
  • The ADA requires no certificate.
  • We do not sell clinician letters.