SHORT ANSWER
Arranging pet relocation from the United States feels overwhelming because no single office owns the whole process. The destination country writes the entry rules, a USDA-accredited veterinarian has to prepare and sign the health certificate, USDA APHIS has to endorse it, the airline applies its own separate acceptance rules, and any country your pet passes through along the way can add requirements of its own. Each of these parties works on its own timeline, and none of them is responsible for making sure the others line up. That coordination job falls to the family, usually in the same months they are also selling a house, changing jobs, or preparing for a military move. USDA's own guidance describes the process as "complex and time-consuming," and planning for it early is the single biggest thing that makes it manageable.
Most people picture a pet move as two tasks: get the paperwork, book the flight. In practice, a typical international move from the U.S. passes through a chain of separate parties, each with its own rules, forms, and deadlines.
The destination country sets the entry requirements and may issue an import permit. A USDA-accredited veterinarian examines the pet, performs or verifies the required vaccinations and tests, and issues the health certificate. If the destination requires it, the USDA APHIS endorsement office reviews and endorses that certificate. The airline decides whether it will accept your pet on a specific flight and in what kind of container. If your pet clears customs in another country on the way, that country's rules apply too. For military families, the local transportation office and the Patriot Express booking system add another layer.
Every one of these parties is doing its job correctly. The problem is that none of them is responsible for checking the others' work against your actual travel date. That gap is where most of the overwhelm comes from.
One of the first surprises for many families is learning that their longtime veterinarian may not be allowed to complete the paperwork. According to USDA APHIS, a USDA-accredited veterinarian must issue any pet health certificate that has to be endorsed by USDA. Accreditation requires formal training through the National Veterinary Accreditation Program, it is specific to the state where the vet is licensed, and it is voluntary. Not every vet is accredited.
APHIS recommends contacting an accredited vet "as soon as you decide to travel," and it lists what that vet will need from you: the type of pet, the destination country, any countries where the pet will stop and clear customs, the departure date, and whether the pet will fly alone as cargo or with a person in the cabin (APHIS: Take a Pet From the United States to Another Country). Families who switch vets partway through, or who start the process before they know how the pet will fly, often end up repeating steps.
It is natural to assume the U.S. government publishes one standard set of pet travel rules. It does not. As APHIS explains in its pet travel FAQ, each destination country sets its own requirements, there is no single health certificate that works everywhere, and the United States does not issue pet passports. APHIS also warns that country requirements can change at any time and should be re-verified every time you plan to travel.
This is where families feel the ground shift under them. A few realities that catch people off guard:
If a country is not listed on the APHIS site, that does not mean it has no rules. APHIS directs owners to contact the destination country's embassy, consulate, port of entry, or ministry of agriculture, and to get any answer in writing, in English, to share with everyone involved in the move.
If your pet cannot meet a requirement, only the destination country can grant a waiver. APHIS is direct on this point: neither your accredited vet nor USDA can waive another country's requirements.
If your pet travels through or to more than one country, APHIS notes that it is your responsibility to make sure each country will accept your pet at each border.
APHIS also asks owners to consider animal disease and pest conditions in the destination. Its process overview currently flags countries affected by New World screwworm, a parasite that infests warm-blooded animals, as a factor to weigh before travel.
Once your vet signs the health certificate, a new clock starts. APHIS notes that you may have a limited window, giving 30 days as an example, to get the certificate endorsed and complete travel before the destination country stops accepting it (APHIS Pet Travel Process Overview). The exact window depends on the destination.
Endorsement itself can happen in one of two ways. Your accredited vet can submit the paperwork through USDA's Veterinary Export Health Certification System (VEHCS), or the vet can hand the paperwork to you to overnight to a USDA Endorsement Office with a prepaid return label. APHIS asks families to use one method or the other, never both. Incomplete submissions or incorrect information cause endorsement delays until the vet or owner fixes the problem, and that delay eats directly into the certificate's validity window.
The original, endorsed paperwork must travel with your pet. APHIS states that electronic versions of documents will not be accepted by destination officials. Endorsement fees also apply to emotional support animals; only service dogs as defined under the Americans with Disabilities Act are exempt.
Clearing every government requirement does not guarantee your pet a seat on a plane. APHIS reminds owners that airlines may have different or additional requirements, and the airline's rules have to be checked separately.
The International Air Transport Association's guidance for pet travelers explains why this step so often turns into a scramble. Some airlines restrict how many animals can travel on a flight, so earlier notice improves your odds. Only small dogs and cats can travel in the cabin, and some airlines do not allow pets in the cabin at all. Crates have to be sized so the animal can stand, sit, turn around, and lie down naturally, and IATA publishes a measurement formula for this. Snub-nosed breeds require a container about 10% larger, and IATA does not recommend flying snub-nosed dogs such as boxers, pugs, and bulldogs during hot seasons. Animals over 14 kg (about 31 pounds) must be crated individually.
IATA also points out a detail most families never think about: if your pet flies as air freight, the cargo facility at the destination has to be open so someone can collect your pet on arrival. That is one reason weekday arrivals are generally easier to coordinate.
Military families face all of the above plus a separate transportation system. According to Military OneSource, service members with orders to or from an overseas location typically travel on military charter flights known as the Patriot Express. Pet reservations are made through your local transportation office when you request passenger reservations, which can be done 90 to 120 days before departure. Pet spaces are limited and booked first come, first served.
Reimbursement is also narrower than many families expect. Military OneSource states that service members can be reimbursed for transporting up to one pet when authorized under the Joint Travel Regulations, and relocation costs for an additional pet are at the family's own expense. (This guidance is dated May 2025 on the Military OneSource page and should be reconfirmed against the Defense Travel Management Office before each move.)
Military veterinarians can help in some cases, but only in limited ones. APHIS explains that active duty military veterinarians and certain federal veterinarians working for the military can issue and endorse health certificates only for dogs, cats, and ferrets going to the European Union, and dogs and cats going to Japan and South Korea. Every other destination and species goes through the standard USDA-accredited vet and APHIS endorsement process (APHIS FAQ).
Adam Melton, VP of Strategic Initiatives at Starwood Pet Travel, says the overwhelm rarely comes from any one rule. "Most families come to us after they've already made three or four phone calls and gotten three or four different answers. That usually isn't because anyone gave them bad information. The vet knows the health certificate, the airline knows its own acceptance rules, and the destination country knows its import rules, but nobody is looking at all of them together against one travel date. That's the real job in a pet relocation. Once one person is holding the whole timeline, the process stops feeling like a pile of separate emergencies and starts feeling like a checklist."
The families who have the smoothest experience usually do a few things early. They contact a USDA-accredited vet as soon as the move is likely, not once it is confirmed. They use the APHIS Pet Owner Worksheet to build a written schedule of every vaccination, test, and certificate deadline. They confirm airline acceptance and crate requirements before booking their own tickets. And they decide clearly who is responsible for holding the full timeline: the family, or a pet relocation company.
If you do hire help, ask specific questions before you sign. Who submits the health certificate for USDA endorsement? Who confirms the airline has space for your pet on your flight? Who handles customs clearance and pickup at the destination? What is included in the quote, and what is billed separately? Clear answers to those four questions tell you whether you are actually handing off the coordination or just paying for part of it.
For a closer look at the specific pain points families describe, read our breakdown of why families struggle with international pet shipping services. If you are still deciding how much of the process you want to manage yourself, our pet relocation personality quiz can help you figure out where you fall. When you are ready to talk through your own move, you can request a free quote or contact our team.