Pet travel: vaccines and quarantine requirements

The single most common reason a pet is stranded at an international border is not a complex regulatory failure. It is a paperwork error that could have been caught with a single phone call. The certificate is missing a stamp. The rabies vaccine was given too early or too late. The microchip number on the certificate does not match the number on the pet. The owner did not realize that the destination country requires a 30-day wait after the rabies titer test before the pet can enter. The owner found out about the wait at the airport, with the pet in the carrier, and the airline refusing to board the pet. The pet is now in a kennel in the destination country, and the owner is on the next flight, and the 30-day quarantine (or longer) is starting.

This article is going to walk you through the practical requirements for international pet travel — the vaccines, the certificates, the country-specific rules, the timeline, and the four mistakes that most commonly strand a pet at the border. The framework is grounded in the actual regulations of the major destination countries (US, Canada, EU, UK, Australia, Japan, and a representative sample of others), with the understanding that the regulations change and the owner must verify the current requirements with the destination country's consulate or agricultural authority before booking the flight. I will not list every country's regulations (the list is hundreds of entries and is updated quarterly), but I will give you the framework that allows you to find and verify the requirements for any specific destination.

The framework is: every country has a set of import requirements for dogs and cats, the requirements are published by the destination country's agricultural or veterinary authority, the requirements are non-negotiable, and the planning timeline for a complex destination (Australia, New Zealand, Japan, the UK post-Brexit) is 6+ months. The owner who is reading this article in February for a June move is, in most cases, too late for the simple approach. The owner who is reading this article and is 9+ months out has time to do it right.

The universal requirements

There are three requirements that are essentially universal across countries for the import of dogs and cats:

• A current rabies vaccination, administered after the pet has been microchipped, with a waiting period after the vaccination before the pet can enter the destination country.

• An ISO-compliant microchip (ISO 11784/11785), implanted before the rabies vaccination.

• An official veterinary certificate (often an international health certificate, USDA-endorsed if leaving the US, or CFIA-endorsed if leaving Canada, or DEFRA-endorsed if leaving the UK), issued within a specific window of the travel date (often 10 days, sometimes 30 days).

The specifics of each requirement vary by destination. The waiting period after the rabies vaccination, for example, is 21 days for the EU, 30 days for many other countries, and 180 days for some (the US, for example, requires a 28-day wait for a pet re-entering from a country that is not rabies-free). The microchip requirement is consistent, but the implantation timing relative to the rabies vaccine varies. The certificate validity window varies from 7 days to 6 months.

The pet owner who is planning international travel needs to know the specific requirements of the destination country, and the requirements need to be verified within 30–60 days of the travel date (because the requirements change, and the country does not always give advance notice).

The US re-entry requirements (for US citizens traveling with their pets)

For US citizens returning to the US with a dog that has been in a country that the CDC classifies as high-risk for rabies (a list that, as of 2025, includes much of the world outside of the rabies-free countries), the requirements are:

• The dog is microchipped with an ISO-compliant microchip.

• The dog has a current USDA-endorsed veterinary certificate (Form 7001 for dogs), issued at the airport of departure by a USDA-accredited veterinarian, and endorsed by USDA APHIS.

• The dog has a current rabies vaccination, administered after the microchip implantation, with a waiting period of at least 28 days (for a single-entry re-entry) or, for the more flexible 5-day-or-more re-entry program, a 28-day wait followed by a titer test or a re-vaccination.

The CDC's dog import rules, in effect since 2024, are some of the strictest in the world for a developed country, and the documentation requirements at the airport are rigorous. A dog that arrives at a US port of entry without a properly endorsed certificate is refused entry, and the options for the owner are limited (re-export, prolonged quarantine at the owner's expense, or, in some cases, euthanasia of an unvaccinated dog from a high-risk country). The US rules are the reason that a pet relocation from a high-risk country to the US is a 4–6 month process, not a 2-week process.

The CDC has a "dog import permit" process for some categories of dogs (service dogs, dogs for scientific research, dogs for which a titer test is not feasible), and the permit process is its own documentation pathway. The standard pet owner should not be using the permit process.

The EU entry requirements (for entry into the EU from a non-EU country)

The EU has a harmonized set of import requirements for dogs and cats (Regulation (EC) No 576/2013 and the associated implementing regulations), and the requirements are:

• ISO-compliant microchip, implanted before the rabies vaccination.

• Current rabies vaccination, with a 21-day waiting period after the first vaccination (no waiting period after a booster, as long as the booster was given before the previous vaccination's expiration).

• An EU health certificate, issued by an official veterinarian in the country of origin, in the format specified by the EU regulation. The certificate is valid for 10 days from the date of issue for entry into the EU, and for 4 months of movement within the EU after entry.

• For entry from a non-listed country (a country that the EU has not determined to have equivalent rabies control), the requirements are stricter: a rabies serology titer test (FAVN or equivalent), with the result being ≥0.5 IU/mL, and the titer test must be performed at an EU-approved laboratory at least 30 days after the rabies vaccination and at least 3 months before the entry into the EU.

The EU's 3-month wait after a successful titer test is the requirement that most commonly strands pets. The owner of a dog in the US, planning to move to the EU, must:

1. Microchip the dog (Day 0).

1. Vaccinate the dog for rabies (Day 0 or later).

1. Wait 30 days (Day 30).

1. Send a blood sample for the FAVN titer test (Day 30).

1. Wait for the result (1–3 weeks).

1. Wait 3 months from the date of the blood draw (Day 30 + 90 days = Day 120).

1. Apply for the EU health certificate (within 10 days of travel).

The total timeline, from microchip to entry, is 4+ months. The owner who starts the process 2 months before the planned move is too late. The owner who starts the process 6+ months before the move is on time.

The UK entry requirements (post-Brexit)

The UK, after Brexit, has its own import requirements for dogs and cats. The requirements are:

• ISO-compliant microchip, implanted before the rabies vaccination.

• Current rabies vaccination, with a 21-day waiting period after the first vaccination.

• An official UK health certificate, issued by an official veterinarian in the country of origin, in the format specified by the UK government. The certificate is valid for 10 days from the date of issue.

• For entry from a non-listed country, a rabies serology titer test, with the result being ≥0.5 IU/mL, performed at an EU-approved laboratory at least 30 days after the rabies vaccination.

The UK has also implemented the "UK Pet Travel Scheme" (PETS), which is similar to the EU's system but with the UK-specific documentation. The PETS certificate replaces the EU health certificate for travel from a listed country.

The UK also requires tapeworm treatment for dogs, administered by a veterinarian 1–5 days before entry into the UK. The treatment must be documented on the health certificate. The tapeworm treatment is for Echinococcus multilocularis, a tapeworm that is endemic in continental Europe and that the UK is trying to keep out. The treatment is praziquantel, 5 mg/kg, and the certificate must include the product name, the manufacturer, the date of administration, and the veterinarian's signature and stamp.

The Australia and New Zealand entry requirements

Australia and New Zealand are rabies-free countries, and the import requirements are correspondingly strict. The biosecurity protocols are designed to keep rabies out, and the documentation and quarantine requirements are rigorous.

Australia. The import requirements, as of 2025:

• ISO-compliant microchip, implanted before any vaccinations.

• Two rabies vaccinations, administered 30 days to 12 months apart, with a 180-day waiting period after the second vaccination before the dog or cat can enter Australia.

• A rabies serology titer test, performed at an approved laboratory at least 180 days before entry, with a result of ≥0.5 IU/mL.

• A general health examination, with a USDA-endorsed (or equivalent) veterinary certificate issued within 5 days of travel.

• Treatment for external parasites (a product effective against ticks and fleas) within 5 days of travel, and for internal parasites (a product effective against nematodes) within 5 days of travel.

• Entry only through the approved import pathway, which involves a minimum 10-day quarantine at the Mickleham Post Entry Quarantine facility in Melbourne (or the equivalent facility in Sydney or Perth, depending on the port of entry).

The total timeline, from the first vaccination to the release from quarantine, is 8+ months. The cost is significant ($2,000–5,000+ for the import process, the quarantine fees, and the associated veterinary work). Australia is the most expensive and most time-consuming major destination for pet relocation.

New Zealand. The import requirements are similar to Australia's:

• ISO-compliant microchip.

• Rabies vaccination, with a 6-month waiting period after the first vaccination before entry.

• Rabies serology titer test.

• A general health examination with an official certificate.

• External and internal parasite treatment.

• Minimum 10-day quarantine at the Auckland (or Wellington) Post Entry Quarantine facility.

The total timeline is 7+ months. The cost is similar to Australia's. New Zealand is, like Australia, a destination that requires a 7+ month planning timeline.

The Japan entry requirements

Japan has its own import requirements, which are strict but somewhat more flexible than Australia and New Zealand:

• ISO-compliant microchip, implanted before the rabies vaccination.

• A single rabies vaccination (Japan accepts a single dose for entry, unlike Australia which requires two), with a 30-day waiting period after the first vaccination (or 90 days if the country of origin is not on Japan's "designated" list).

• A rabies serology titer test, performed at a designated laboratory, with a result of ≥0.5 IU/mL, performed at least 180 days before entry from a non-designated country.

• An official health certificate, issued within 7 days of travel, by a government-accredited veterinarian.

• A mandatory 180-day waiting period at the owner's residence in Japan after entry, during which the pet is examined by a designated veterinarian at 30, 90, and 180 days post-entry.

The 180-day waiting period in Japan is the longest post-entry monitoring period of any major destination. The owner who is moving to Japan with a pet should plan for a 7+ month pre-entry process and a 6-month in-Japan monitoring period.

The four mistakes that strand a pet at the border

Mistake 1: Starting the process too late. The single most common reason a pet is stranded at the border. The owner has a 2-month timeline for an international move and does not realize that the destination country's requirements involve a 4–6 month pre-entry process. The result is a pet that cannot enter the destination on the planned date, and the owner is forced to either delay the move, leave the pet behind, or attempt to fast-track the process (which usually fails). The fix is to start the research 9+ months before the planned travel date, even if the actual process begins 6 months out. The 9-month lead time is for the destination country's requirements to be researched, the titer test to be planned, and the timeline to be verified.

Mistake 2: Microchipping after the rabies vaccination. The microchip must be implanted before the rabies vaccination. If the microchip is implanted after the vaccination, the vaccination is not considered valid for the purposes of the import requirement, and the pet must be re-vaccinated. The re-vaccination starts the waiting period over. The fix is to verify the microchip date on the vaccination record, and to make sure the microchip is implanted first.

Mistake 3: Using the wrong certificate format. The EU has its own certificate format. The UK has its own. The US has its own. Japan has its own. Australia has its own. The owner who uses the US certificate for entry into the EU is refused at the border. The owner who uses the EU certificate for entry into the UK post-Brexit is refused at the border. The fix is to verify the certificate format with the destination country's agricultural authority, and to use the format specified by that country. The format is non-negotiable, and a "close enough" approach does not work.

Mistake 4: Skipping the titer test. The titer test (FAVN or equivalent) is required by many countries for entry from non-listed or high-risk countries. The test must be performed at a designated laboratory (the list of approved laboratories is published by the destination country), the blood sample must be drawn at least 30 days after the rabies vaccination, and the result must be ≥0.5 IU/mL. A pet that fails the titer test (a result of <0.5 IU/mL) must be re-vaccinated and re-tested, and the 3-month wait starts over. The fix is to plan the titer test at the right time, at the right lab, and to verify the result before booking the flight.

The pet relocation services, briefly

For complex destinations (Australia, New Zealand, Japan), the use of a professional pet relocation service is strongly recommended. The services handle the documentation, the titer test, the USDA (or equivalent) endorsement, the flight booking, and the customs clearance. The cost is $2,000–5,000+ depending on the destination and the size of the pet, but the service eliminates the paperwork errors that strand pets at borders.

The major pet relocation services, in 2025:

• Pet Airways (US-based). Handles the US-to-international and international-to-US moves.

• Animal Airways (UK-based). Handles the UK-to-international and international-to-UK moves.

• Worldwide Animal Travel (US-based). A larger operation that handles most major destinations.

• PetRelocation.com (US-based). A long-established service with a strong reputation.

The owner who is not using a service should be prepared to manage the documentation personally, and should plan for a 6+ month lead time. The owner who is using a service should still plan for a 4+ month lead time, because the service needs the time to complete the work.

The airline-specific requirements

In addition to the destination country's requirements, the airline has its own requirements. The major airlines (United, Delta, American, British Airways, Lufthansa, Air France, Qantas, etc.) have specific rules about:

• Carrier size and type. The carrier must fit under the seat (for cabin travel) or be airline-approved for cargo hold travel. The dimensions and the construction are specified by the airline.

• Pet weight limits. Most airlines have a weight limit (typically 20 lbs including the carrier) for cabin travel. Larger pets must travel in the cargo hold.

• Breed restrictions. Brachycephalic breeds (bulldogs, pugs, Persian cats) are often restricted from cargo travel because of the higher risk of respiratory distress. Some airlines refuse to transport them at all.

• Temperature restrictions. Some airlines do not transport pets in the cargo hold when the ground temperature is above 85°F or below 45°F at either the origin or the destination.

• Sedation. Most airlines do not allow sedation of pets during transport, because the sedation can produce respiratory depression in a low-oxygen cargo-hold environment.

The owner who is planning a flight with a pet should check the specific airline's pet policy, and should book well in advance because the cargo hold space for pets is limited (typically 1–3 pets per flight, depending on the airline and the aircraft).

The bottom line

International pet travel is a structured, documented, time-consuming process. The destination country's requirements are non-negotiable, the timeline is dictated by the destination, and the planning horizon is 4–9 months depending on the destination. The owner who starts early, who verifies the requirements with the destination country's agricultural authority, who uses an ISO-compliant microchip and the correct vaccination timing, and who uses the correct certificate format is the owner whose pet arrives at the destination on schedule. The owner who starts late, who uses the wrong certificate, who mis-times the vaccination, or who skips the titer test is the owner whose pet is stranded at the border.

The single most important thing the owner can do is start early. The 9-month lead time is not a recommendation. The 9-month lead time is, for the most complex destinations, the minimum. The owner who is reading this article and is 6+ months from the planned move is on time. The owner who is reading this article and is 3 months from the move is late, and needs to either accelerate the process (which is usually not possible) or adjust the plan.

The pet that arrives at the destination on schedule, with the correct documentation, with the correct vaccination, with the correct microchip, is the pet whose owner did the work in advance. The work is paperwork, not medical complexity. The work is a series of small, verifiable steps that any owner can complete with the right planning. The right planning is the only variable.

---

About the author

James Morrison, DVM, is a small-animal internist with a secondary interest in international pet travel medicine. He has handled hundreds of international pet relocations across the major destination countries, and writes regularly on the practical interface between regulatory requirements and the day-to-day realities of moving a pet across borders.