Taking a pet across the land border into the United States is one of the few pet moves with almost no Canadian paperwork attached to it. Everything you need is American, most of it is free, and one part of it will stop the trip completely if you get it wrong.

This guide covers driving to the USA with a dog or a cat, and the drive home, because the two directions are governed by different agencies asking for different things. The United States wants a form, a microchip and an age. Canada wants a certificate.

Canada Asks You For Nothing on the Way Out

Start here, because it saves a phone call. The Canadian Food Inspection Agency states it directly: “The Canadian Food Inspection Agency (CFIA) has no role in the export of dogs and cats to the United States of America (USA).”

No export certificate. No CFIA endorsement. No veterinary signature to arrange, no fee to pay, no appointment to book. Every requirement on the southbound leg belongs to a United States agency, and CFIA will refer you to them if you ask.

The One Document the United States Asks For

The CDC regulates dogs entering the United States, and it sorts the world into countries at high risk for dog rabies and everywhere else. Canada is not on the high-risk list, which was last updated in April 2026. Unless your dog has been in a high-risk country in the previous six months, it sits in the simpler category.

For that category the CDC is unusually clear about the paperwork: “the only required documentation for dogs entering or returning to the United States that have been only in dog rabies-free or low-risk countries in the past 6 months is the CDC Dog Import Form.”

The form is completed online and it is free. You fill one in for each dog, select the date you plan to arrive, and receive a receipt. The receipt is valid for that dog to enter the United States multiple times from the same country within six months of the date it was issued, so a family that crosses for weekends or hockey tournaments fills it in twice a year rather than every trip. You can print the receipt or show it on your phone at the booth.

Dogs in this category can enter at any airport, seaport or land border crossing. There is no designated port of entry to plan a route around, which is the opposite of how most countries handle animal imports.

A Microchip, and a Six Month Age Rule With No Exceptions

Alongside the form, the CDC asks three things of the animal. The dog must appear healthy on arrival. The dog must be at least six months old at time of entry. And the dog must have a microchip that can be detected with a universal scanner.

Canada has never asked for a microchip, so a Canadian dog may not have one, or may have one that nobody has scanned in years. If the chip was implanted years ago and you have never had it read, have your veterinarian scan it before the trip. A chip that has migrated or failed is a chip that does not exist as far as a border officer is concerned. Write the number down separately and carry it.

The age rule is the one that ends trips. Six months is a hard floor with no short-visit exception, no exception for a day trip, and no exception for a dog that was born in the United States. A four-month-old puppy does not cross, whether the purpose is a weekend at a cottage, a specialist appointment in Buffalo or Bellingham, or collecting the puppy in the first place. Plan the drive around the dog’s date of birth.

The CDC does not require a rabies vaccination certificate for dogs in this category. Bring one anyway. Canada will want it on the way home, and it is the document a United States veterinary clinic, boarding kennel or groomer will ask for while you are there.

Cats Cross on Almost Nothing

USDA APHIS states that it “does not have any animal health requirements related to bringing (importing) a pet cat into the United States from a foreign country.” The CDC recommends rabies vaccination for cats but does not require it.

What remains is inspection. Cats are subject to inspection at ports of entry and may be denied entry if they show evidence of a zoonotic disease. If a cat appears unwell on arrival, an examination by a licensed veterinarian at the owner’s expense can be required before the animal is admitted.

Hawaii and Guam run their own quarantine programs for all cats regardless of where they come from, which does not affect a drive but does affect anyone continuing by air. Our Hawaii guide covers that separately.

The Rules That Start After the Booth

Clearing the federal agencies is not the same as being compliant in the state you are driving to. Each United States state sets its own entry requirements for dogs and cats, and they are not uniform. Many ask for a certificate of veterinary inspection issued within a set window before entry, and proof of rabies vaccination.

Customs and Border Protection does not enforce state rules at the crossing, so nothing at the booth signals that they exist. They surface later, at a veterinary clinic, a boarding kennel, a dog-friendly hotel, or after any incident involving the animal. USDA APHIS publishes the entry requirements state by state, and the state that matters is the one you are staying in, not only the one you drive into.

One small piece of good news specific to Canada: APHIS applies a tapeworm condition to dogs used in livestock handling imported from most of the world, and Canada is named among the exceptions.

Coming Home

Canada asks for the document the United States did not. For a dog three months or older, CFIA’s Import Reference Document requires that the animal be “accompanied by a valid rabies vaccination certificate issued in either English or French by a licenced veterinarian from the country of origin, which clearly identifies the dog and shows that the dog is currently vaccinated against rabies.”

Read that as three tests. The language has to be English or French. The certificate has to identify your specific animal rather than describe a generic dog. And the vaccination has to be current at the moment you cross, which means the certificate should show a validity period or expiry date and not only the date it was given.

For a cat three months or older, CFIA accepts a certificate showing current rabies vaccination, or evidence the cat has spent the previous six months in a country Canada recognises as rabies-free, or a rabies neutralising antibody titre test result of at least 0.5 IU/ml. A titre test measures the antibodies in the animal’s blood to confirm the vaccination worked, and it is not something to organise on the way home from a road trip. Vaccination is the practical route.

Animals under three months are treated differently. A dog “less than three months of age at the time of import does not require rabies vaccination or certification,” and “domestic cats less than three (3) months of age are not subject to any restrictions for importation.” Carry proof of age, because the exemption rests on it.

Canada does not require a microchip, does not require a titre test for dogs from the United States, and does not quarantine returning pets.

What CFIA Charges at the Border

The CFIA Fees Notice sets this by purpose rather than by origin. The import inspection fee for a dog, cat or ferret brought in for any purpose other than research or transit is CAD $36.95 for the first animal in the shipment and CAD $6.16 for each additional animal, collected at the border by a border services officer. The two lines in that item that name the United States are narrower than they look: they cover animals imported from the US for research consigned to a facility approved by the Canadian Council on Animal Care, and animals imported from the US in transit to another country, both at CAD $43.12. Whether an officer raises the charge on a given crossing is a question for the port rather than something the schedule answers, so plan for it rather than assuming it away.

The line that costs more is the one that matters on this route. If an inspector issues a vaccination order because the certificate is missing, unreadable or expired, the schedule sets CAD $67.75 for the first animal and CAD $36.95 for each additional animal, and that line carries no origin qualifier at all. So a crossing that would otherwise have cost $36.95 costs $67.75 the moment the paperwork does not satisfy the officer. That is the inspection charge on its own. The veterinarian who gives the vaccination bills separately, and the animal is not released until it is done.

Personal Pet or Commercial Import

The simple requirements above apply to a personal pet, which the Canada Border Services Agency defines as a pet that lives or will live with the owner and will not be transferred or given to another person on arrival. The owner has to be the person importing the animal and has to hold documentation proving ownership.

Bringing a dog back for someone else, collecting a puppy from an American breeder to pass on, or carrying an animal for a rescue organisation puts the move on the commercial side, where the requirements are heavier and the paperwork is different. Assistance dogs in the personal category are exempted from the rabies vaccination requirement.

Declare the animal in both directions. CBSA officers can refuse entry, confiscate or detain an animal that is undeclared, that lacks the certificates it needs, that is suspected of carrying disease, or that is being transported inhumanely.

What to Keep Within Reach, Not in the Boot

The CDC Dog Import Form receipt, printed or saved offline on your phone, one per dog.

The rabies vaccination certificate on paper, naming your animal and showing a validity period, for the trip home and for anything that happens while you are away.

The microchip number written down, in case the scanner at the crossing is the one that cannot read the chip.

Proof of age for any animal under three months, and proof of ownership for every animal.

Water, a bowl and a leash you can reach without opening a crate in a lane of traffic. Our resources page has the full preparation checklist as a download.

Frequently asked questions

Do I need a health certificate to take my dog to the United States?

Not at the federal level. For a dog that has only been in Canada or another rabies-free or low-risk country in the past six months, the CDC Dog Import Form receipt is the only required documentation. Your destination state is a separate question, and many states ask for a certificate of veterinary inspection.

Does the CDC Dog Import Form cost anything?

No. It is free, you complete one for each dog, and the receipt is valid for that dog to enter the United States multiple times from the same country within six months of the date it was issued. Print it or show it on your phone.

Can I take a puppy to the United States?

Not under six months of age. The CDC requires a dog to be at least six months old at time of entry, and the rule has no exception for a short trip, a day visit or a dog born in the United States.

Does my dog need to be microchipped to cross into the United States?

Yes. The chip has to be detectable with a universal scanner. Canada does not require one on the way home, so the microchip is an American rule that happens to settle the identification question in both directions. Have it scanned before you leave rather than at the booth.

What does my cat need to come back into Canada?

For a cat three months or older, a certificate in English or French that clearly identifies the animal and shows current rabies vaccination. CFIA also accepts six months of residence in a rabies-free country or a rabies neutralising antibody titre of at least 0.5 IU/ml. Kittens under three months are not subject to import restrictions.

What will CFIA charge me at the border on the way home?

Normally nothing. The schedule exempts dogs, cats and ferrets arriving from the United States from the CAD $36.95 import inspection fee that applies to arrivals from elsewhere. But if an inspector issues a vaccination order because the certificate is missing or out of date, the schedule sets CAD $67.75 for the first animal and CAD $36.95 for each additional, plus what the veterinarian charges, and that line does apply to pets coming from the US. Rates change every 31 March.

Where These Rules Come From

The southbound requirements and the quoted wording come from the CDC’s entry rules for dogs from dog rabies-free or low-risk countries and its Dog Import Form instructions, with the cat position from USDA APHIS. The statement that CFIA has no role on the way out is CFIA’s own. The return requirements and the quoted certificate standard come from the CFIA Import Reference Document, and the fees from the CFIA Fees Notice. The definition of a personal pet, and what an officer can do, come from the Canada Border Services Agency. Figures and rules verified September 2026.

A drive is the cheapest way to move a pet between the two countries and the only one where nobody checks your documents in advance. If the move is permanent, or the animal is continuing beyond the United States, flying is usually the better answer and our Canada to United States cost page publishes the numbers. The United States destination guide covers the air route requirements in full, and the pet relocation FAQ answers the questions that come up around crates, timing and airline acceptance.

Driving the other way, from the United States into Canada, has its own set of rules, plus a provincial breed law that no border officer will mention. Our American site covers that trip in driving your pet across the US-Canada border.

Pet Travel Advisors has been arranging pet relocations since 2023. We are licensed and insured, our team holds IATA Live Animals Regulations certificates, and our documentation work follows CFIA and USDA APHIS requirements.

Flying instead of driving changes the whole shape of the move: the crate becomes the largest cost, the season decides the date, and a cargo booking on a US route cannot be placed by the owner. Our guide to flying a pet from Canada to the United States covers all three options.

For what happens at the border itself, and which parts of it you can handle without help, see clearing a pet through Canadian customs.

Last updated 8 September 2026