Every mistake on this page has already cost someone real time, money, or a denied entry. This isn’t a new topic — it’s a fast, scannable round-up of the highest-impact mistakes already covered in detail across this site’s other guides, so you can catch a problem before it derails your move. Each item links to the full guide for the depth you’ll actually need to act on it.
Current as of 2026: Requirements referenced here can change — always confirm current rules with the specific guide linked for your situation, and with the official source it cites, before you move.
Document & Timing Mistakes
1. Assuming one set of requirements applies regardless of pathway. A dog’s CDC pathway depends on where it’s been and where it was vaccinated — foreign-vaccinated, US-vaccinated, and low-risk-country dogs all face different document sets. See CDC High-Risk Countries Explained and Rabies Vaccination Requirements.
2. Missing the titer test’s 58-day minimum. The blood draw can’t happen before 30 days post-vaccination, and the result must be in hand 28 days before you move. That’s a hard sequential floor, not a suggestion. See International Pet Travel Timeline.
3. Implanting the microchip after the rabies vaccine. On the foreign-vaccinated pathway, a vaccine given before the microchip is considered invalid. See Dog Microchip Requirements.
4. Missing an airline’s own health certificate window. Separate from CDC’s requirements — airlines commonly set their own certificate validity window, often around 10 days, which can be missed even when every CDC requirement is met. See Pet Health Certificates for International Travel.
Airline & Booking Mistakes
5. Assuming any airline’s cargo hold is open to the public. Several major U.S. carriers now restrict cargo and checked-pet programs to active-duty military and State Department personnel only. See American Airlines Pet Policy and Airlines That Allow Pets to Fly to the United States.
6. Confusing a “checked pet” program with general cargo shipping. These are two different things with American Airlines specifically — “checked pet” at the ticket counter is restricted to military/State Department personnel, while American PetEmbark® cargo is the real general-public option for pets that don’t fit in the cabin. Assuming they’re interchangeable, or that either one is universally available, is a distinct mistake from just assuming cargo is open to everyone. See American Airlines Pet Policy.
7. Booking a flight before securing a required facility reservation. Foreign-vaccinated dogs from high-risk countries can only land at the airport where their reserved CDC-registered facility is located. Reserve the facility first, then book your flight around it. See Rabies Vaccination Requirements.
8. Sedating a pet for the flight. AVMA explicitly advises against it. See Preparing Your Pet for a Long Flight.
Country & Mover Mistakes
9. Assuming a country’s classification without checking the current list. CDC’s high-risk list doesn’t track geographic assumptions — Mexico isn’t on it, which surprises a lot of readers. See CDC High-Risk Countries Explained.
10. Treating a route as simple because it’s short-haul or nearby. Proximity doesn’t predict regulatory complexity — Mexico’s active screwworm certificate and SENASICA export process make it more document-intensive than some far more distant low-risk-pathway countries.
11. Paying a pet mover before verifying credentials — or deciding not to use one without weighing the trade-offs. IPATA membership and USDA licensing status are both independently verifiable before any money changes hands. And if you haven’t decided whether you need a mover at all, that’s worth doing deliberately rather than defaulting to DIY. See How to Choose an International Pet Mover and Do You Need a Pet Relocation Company for an International Move?
