The topic of Brexit might feel distant for U.S. pet owners, but international pet travel rules worldwide have evolved significantly by 2025. For American dog owners, understanding the latest regulations for traveling with pets across domestic and international borders—including Canada, Mexico, and Europe—is crucial. These changes affect paperwork, vaccinations, and carriers, ensuring pet safety and public health.
If you frequently travel with your dog within North America or plan to visit Europe with your canine companion, this guide details the updated requirements, documents, and practical steps U.S. pet owners should follow for smooth and compliant pet journeys in 2025.
Previously, traveling abroad with dogs from the U.S. was less complicated, especially with countries participating in reciprocal pet agreements like the EU Pet Travel Scheme. These agreements allowed pets carrying valid passports issued by authorized veterinarians to cross borders without quarantine if they met vaccination and microchip criteria.
A standard pet passport typically verified the dog’s microchip identification, rabies vaccinations, and preventive treatments against parasites such as tapeworms and fleas. These health assurances helped reduce risks of spreading diseases.
While more common in the EU, the concept of pet passports provided convenience for frequent travelers and owners relocating internationally.
Starting August 2024, and fully effective by July 31, 2025, the Centers for Disease Control and Prevention (CDC) updated dog importation regulations for the U.S. All dogs arriving must be accompanied by a valid CDC Dog Import Form that certifies the dog was vaccinated against rabies after microchipping by a USDA-accredited veterinarian. Dogs younger than 6 months are restricted entry without this documentation.
For international trips, the Animal Health Certificate (AHC) used abroad by U.S. pet owners replaced some older local certificates. This document must be obtained from an accredited U.S. veterinarian shortly before traveling (usually within 10 days). It confirms the dog meets vaccination and health standards recognized by the destination country.
Specific countries, especially in Europe, may require additional tests such as a rabies antibody titre test performed 30 days post-vaccination and at least three months prior to travel if relocating or staying long term.
Additionally, certain nations free of dangerous tapeworm species like Echinococcus multilocularis may mandate a tapeworm treatment 1 to 5 days before entry. U.S. travelers should research these rules if planning visits to such locations.
Another important update is that many countries, including those in the EU, require pets to enter only via authorized Points of Entry where officials perform health and compliance checks to protect animal and public health.
Within the U.S. and when crossing into Canada or Mexico, well-documented rabies vaccination records and health certificates endorsed by USDA-accredited veterinarians are mandatory. Canada requires proof of vaccination and may conduct border inspections. Mexico asks for a veterinary health certificate issued within 10 days of arrival, with state-specific additional documents possible for prolonged stays.
For flights, many U.S. airlines like American Airlines have set strict temperature restrictions on pet travel, disallowing checked or cargo pet transport if temperatures exceed 85°F or fall below 45°F during any part of the trip. Hot weather travel bans in airports like Phoenix and Las Vegas apply seasonally (May through September). If travel in these periods is necessary, a veterinarian’s letter detailing pet acclimation and temperature tolerance is required within 10 days of travel.
There is optimism as international cooperation on pet travel documents improves. For example, the U.S. continues to work on harmonizing health certificates and import/export requirements with other countries.
Tips for U.S. Pet Owners Traveling in 2025:
By staying informed and adhering to updated requirements, dog owners in the U.S. can ensure safe, smooth, and enjoyable travel adventures with their furry friends across North America and overseas in 2025.
Responsible preparation not only protects your pet’s health but also aids in preventing disease spread and promotes positive international pet travel experiences.