Microchip before the Rabies Shot
The US only accepts a rabies vaccination given after the microchip went in. If the shot came first, it has to be given again. Dogs coming home also need a microchip a universal scanner can read.
Country Guide
What your dog or cat needs to fly from the United States to Canada: certificates, vaccines, deadlines and the official sources, checked daily. Free.
The steps people miss most: short windows measured back from the flight, and papers you can only get before you leave the US.
The US only accepts a rabies vaccination given after the microchip went in. If the shot came first, it has to be given again. Dogs coming home also need a microchip a universal scanner can read.
Canada asks for a rabies vaccination certificate, in English or French, signed and dated by a licensed vet. It must describe your dog (age, breed, sex, colour, weight and microchip number if there is one), name you as the owner, give the date of the shot, the vaccine's trade name and serial (lot) number, and how long the shot lasts. If it does not say how long, Canada counts it as valid for 1 year. The dog must have been at least 3 months old when vaccinated. Any licensed vet can write it; it does not need a USDA stamp, and no health certificate is needed. Carry the paper original.
CFIA (Canada): bringing a dog or cat to Canada · USDA: pet travel from the US to Canada
At the border, officers can ask for your dog's papers and check that your dog looks healthy and travelled humanely. Keep the paper originals in your hand luggage: CFIA strongly recommends hard copies. If something is missing, Canada can order the pet out of the country or fine you.
Free, online, and filled in by you. Every dog needs its own form. The receipt is good for 6 months of trips into the US from Canada, so one form can cover this flight home and later ones.
CDC: how to fill in the Dog Import Form · CDC: bringing a dog into the United States
The official pages we checked do not ask for anything from Canada when a pet leaves. What your next country needs is listed with your next flight.
Your dog needs a microchip a universal scanner can read. CDC does not ask for the rabies certificate for a trip home from Canada, but carry it anyway: airlines, vets and border officials may ask to see it.
CDC: bringing a dog into the United States · CDC: how to fill in the Dog Import Form
At the customs counter, hand the officer the CDC Dog Import Form receipt, and have the rabies certificate with you in case they ask. There is no separate office to visit. Your dog must look healthy and be at least 6 months old.
Canada asks for a rabies vaccination certificate, in English or French, signed and dated by a licensed vet. It must describe your cat (age, breed, sex, colour, weight and microchip number if there is one), name you as the owner, give the date of the shot, the vaccine's trade name and serial (lot) number, and how long the shot lasts. If it does not say how long, Canada counts it as valid for 1 year. Any licensed vet can write it; it does not need a USDA stamp, and no health certificate is needed. Carry the paper original.
CFIA (Canada): bringing a dog or cat to Canada · USDA: pet travel from the US to Canada
At the border, officers can ask for your cat's papers and check that your cat looks healthy and travelled humanely. Keep the paper originals in your hand luggage: CFIA strongly recommends hard copies. If something is missing, Canada can order the pet out of the country or fine you.
The official pages we checked do not ask for anything from Canada when a pet leaves. What your next country needs is listed with your next flight.
We have not finished researching the US rules for cats coming home yet. USDA's page is the place to check until we have.
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We restate the rules in our own words. The official pages are what count.
Compass & Collar explains the rules; your vet issues the certificates and border officials make the decisions. Rules change, so check the official pages and call your airline before you travel.