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Regulations for Traveling With Pets

Reviewed ByLaurie Hess, DVM, DABVP, The MSD Veterinary Manual
Reviewed/Revised Jun 2025

The laws and regulations for traveling with pets can seem overwhelming. However, these rules are in place to protect your pet's health, the health of other animals, and people's health.

What Are the Regulations for Domestic Travel With Pets?

When traveling within the United States with your pet, remember that each state has its own regulations for moving animals across state lines. Other countries have similar requirements when traveling domestically. In the United States, the Animal and Plant Health Inspection Service (APHIS, https://www.aphis.usda.gov/pet-travel), part of the USDA, has information on each state's regulations. Generally, you should carry proof of current rabies vaccination and a health certificate from your vet.

What Are the Regulations for International Travel With Pets?

If you're traveling to another country, research that country's travel restrictions, vaccination requirements, and rules about isolating pets before your trip. Isolation is often required to ensure pets are healthy before entering another country. Start by checking with the nearest consulate or embassy representing your destination and the country's government website. Your veterinarian can also help you find the right information.

All pets that are traveling should be up to date on their vaccinations, and vaccinations should be kept current while abroad. Vaccination rules vary by country. Countries that are rabies-free often have the strictest import rules for dogs and cats. In the United States, each state also has its own health and vaccination requirements. All dogs and cats should be vaccinated against rabies before leaving the United States. While rabies may not be a concern in some places, it can be a serious issue in others. The American Veterinary Medical Association recommends traveling with a rabies vaccination certificate when crossing international borders.

Some countries require a health certificate and proof of rabies vaccination signed by a US government official before they allow pets to enter. Others require that pets be held in isolation for a time before entering the country. Isolation periods can be long, sometimes up to 6 months, and the facilities where the pets are kept can be costly. If the effort and expense of isolation outweigh the benefits of having your pet with you, consider leaving your pet at home.

Certain countries, like the United Kingdom, have strict importation rules, so check official government websites for details. Regulations can change yearly, so stay updated. Airlines also may have their own requirements for transporting pets, so contact them when planning international travel.

People traveling from other countries to the United States with their pets should check with the CDC (https://www.cdc.gov/importation/bringing-an-animal-into-the-us/index.html) and APHIS (https://www.aphis.usda.gov/pet-travel/another-country-to-us-import) regarding rules for importing pets into the United States.

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