Checked against Japan’s Animal Quarantine Service (AQS, under the Ministry of Agriculture, Forestry and Fisheries) official guidance on 5 November 2026. The one detail worth confirming before you start is which microchip numbers AQS is currently flagging — it has changed more than once.

If you’re planning to bring your dog or cat to Japan, there’s no need to worry — it’s entirely possible to do without a single day of quarantine on arrival. The part that catches people off guard isn’t a form or a fee. It’s the clock: the countdown to entry doesn’t start when you book your flight, and it doesn’t start with a vaccination either. Here’s what Japan’s Animal Quarantine Service actually requires.

The 180-day clock starts on the day blood is drawn, not the day of vaccination

For a pet coming from most countries — the United States and the UK included — AQS requires a microchip (ISO 11784/11785 compliant, 15-digit), followed by at least one rabies vaccination given no earlier than 91 days of age, then a blood test showing a rabies antibody level above 0.5 IU/mL. That test has to be run at a laboratory specifically designated by the Ministry of Agriculture, Forestry and Fisheries — not just any vet lab.

The 180-day waiting period counts from the date that blood was drawn for the test that passed — not from the vaccination date, and not from the date the lab issued the result. AQS states this explicitly, and says there’s no exception for medical reasons. If the antibody level comes back too low, the clock doesn’t start until a new sample clears the threshold.

Submit the notification 40 days ahead — but the real planning window is closer to 7 months

AQS requires the import notification at least 40 days before arrival, filed online through NACCS or by email to the AQS office at the arrival airport. But 40 days is the floor, not the realistic timeline. Add up the vaccination, the wait for antibody levels to build, the blood draw, and the 180-day count that follows it, and most pets need the process started around seven months before travel — sometimes longer if a first blood test comes back under 0.5 IU/mL and a second vaccination is needed.

Six regions skip the wait — but only for pets that actually lived there

AQS designates six rabies-free regions — Iceland, Australia, New Zealand, Fiji, Hawaii, and Guam — where the antibody test isn’t required at all. The catch is eligibility isn’t about where your flight originates. A pet qualifies only if it has lived in one of those regions since birth, or continuously for the 180 days immediately before export to Japan, or continuously since being exported there directly from Japan. A short stopover or vacation in Guam doesn’t count. For a pet that doesn’t meet one of those three conditions, the full vaccination-and-blood-test process applies regardless of which airport the flight departs from.

Miss a requirement, and your pet is detained at the airport — not turned away

A dog or cat that doesn’t meet every condition isn’t sent back on the next flight. It’s held at an AQS quarantine facility for whatever portion of the 180 days is still outstanding, and the owner is responsible for all costs of care during that time. AQS doesn’t guarantee facility space either, which is the practical reason notification has to go in before arrival rather than at the counter. Caretaker companies operate at the Narita, Haneda, and Kansai facilities to handle feeding and care at the owner’s expense, but the detention itself isn’t negotiable if the paperwork or timing falls short.

Practical checklist

• Get the microchip implanted before the rabies vaccination — a shot given first generally isn’t accepted without a separate AQS procedure
• Use only inactivated or recombinant rabies vaccines; live vaccines aren’t accepted
• Have the blood sample tested at a MAFF-designated laboratory (list at maff.go.jp/aqs/animal/dog/lab.html) — a result from any other lab won’t count
• Get the export health certificate from a vet within 10 days of departure, then have it endorsed by the exporting country’s government authority before you fly

Travel AI Rescue

Travel AI Rescue keeps the Animal Quarantine Service’s contact details for Narita, Haneda, and Kansai one tap away, which matters if a flight delay means you’re trying to reach AQS about a changed arrival time. It can also show a Japanese-language card explaining what’s happening with your pet’s paperwork, so an AQS officer or a caretaker company can follow your situation immediately even without a shared language. And above all, the AI can walk through your own notification timeline — vaccination date, blood sampling date, the 180-day count — and flag early if something doesn’t line up, well before you’re standing at the quarantine counter. Passport and pet-document details stored on the device stay readable with no signal at all. It works differently from a pet relocation agency, and it’s with you around the clock — a bridge that gets you to the right paperwork, quickly and in the right order. (The actual import inspection and any quarantine decision are handled by Japan’s Animal Quarantine Service.)

Sources

• Japan Animal Quarantine Service (Ministry of Agriculture, Forestry and Fisheries), “Procedures for Bringing Dogs and Cats into Japan (Q&A).” https://www.maff.go.jp/aqs/english/qanda/dogcata.html (accessed 2026-11-05).
• Japan Animal Quarantine Service, “Animals Scheduled for Detention/Quarantine (dogs and cats from non-designated regions).” https://www.maff.go.jp/aqs/english/animal/dog/import-other.html (accessed 2026-11-05).