Complete Guide for Bringing Dogs Into the US
Everything you need to know about the CDC dog import form — requirements, rabies vaccination rules, ISO microchip standards, & step-by-step filing...
Why the CDC Overhauled Dog Importation Rules
Between 2015 and 2023, the United States saw a documented rise in imported dogs carrying rabies — including three confirmed cases of rabid dogs entering the country with fraudulent vaccination certificates. One 2021 case involved a dog imported from Egypt that developed rabies weeks after arrival, exposing multiple humans and animals. These incidents prompted the Centers for Disease Control and Prevention to replace the previous temporary suspension system with a permanent, science-based regulatory framework.
The final rule, published in the Federal Register on May 29, 2024, established standardized requirements designed to close loopholes in the old system. Unlike the prior framework — which relied heavily on individual airline policies and inconsistent port-of-entry checks — the new regulations create a unified digital process that tracks each dog from origin to US arrival.
The Epidemiological Science Behind Import Controls
Rabies remains fatal in virtually 100% of cases once clinical symptoms appear, making it one of the most dangerous zoonotic diseases globally. The World Health Organization estimates approximately 59,000 human rabies deaths annually worldwide. Dogs are responsible for up to 99% of human rabies transmission. The CDC's import framework applies the principle of risk-stratified entry control: dogs from countries classified as high-risk for canine rabies (currently over 110 nations) face stricter documentation and vaccination verification requirements than those arriving from rabies-free or low-risk countries. This tiered approach mirrors similar systems used by the European Union's Pet Travel Scheme and Australia's Department of Agriculture.
Step-by-Step: How to Complete the CDC Dog Import Form
The CDC Dog Import Form is submitted electronically through the CDC's online portal. Here is the exact process:
- Create an account on the CDC Dog Import Form portal at cdc.gov/importation/dogs. You will need a valid email address and phone number.
- Enter importer information — your full legal name, US address, phone number, and relationship to the dog (owner, rescue organization, commercial importer).
- Provide dog identification details — breed or mix, age, sex, color/markings, and the ISO-compliant microchip number (15 digits). The microchip must be implanted before the rabies vaccination was administered, or at the same time.
- Upload rabies vaccination documentation — this must include the vaccine product name, manufacturer, lot number, date of administration, expiration date, and the name/license number of the administering veterinarian. Dogs from high-rabies countries require a valid rabies serologic titer test (FAVN test showing ≥0.5 IU/mL) from an approved laboratory, performed within 45 days before entry.
- Declare country of origin and travel history — list every country the dog has been in during the past 6 months. This determines which tier of requirements applies.
- Pay the $1 processing fee per dog. This is charged via credit/debit card at submission.
- Receive your CDC Dog Import Permit — typically issued within 2–10 business days. Print this permit and carry it with you during travel. You will also need to present it to the airline at check-in.
| Requirement | Low-Risk / Rabies-Free Countries | High-Rabies Countries |
|---|---|---|
| Minimum age | 6 months | 6 months |
| ISO microchip | Required | Required |
| Rabies vaccination | 1 valid dose (administered at ≥3 months of age) | Valid vaccination + FAVN titer ≥0.5 IU/mL |
| Rabies titer test | Not required | Required (within 45 days of entry) |
| CDC Import Form | Required | Required |
| Veterinary health exam | Not required by CDC (may be required by airline or USDA) | Not required by CDC (may be required by airline or USDA) |
| Processing fee | $1 per dog | $1 per dog |
| Typical approval timeline | 2–5 business days | 5–10 business days |
Microchip Standards: What ISO 11784/11785 Actually Means
The CDC requires a 15-digit microchip compliant with ISO 11784/11785 — the international standard for animal identification transponders. This is not optional, and it is not interchangeable with other chip formats.
ISO-compliant chips operate at 134.2 kHz frequency and use a standardized 15-digit numeric code. The first three digits represent the country code or manufacturer code. For example, chips beginning with 900 indicate Australia, while 985 indicates the United Kingdom.
Here is the practical problem many importers encounter: some dogs microchipped in the United States or certain other countries carry chips that operate at 125 kHz or 128 kHz — frequencies that are not ISO-compliant. If your dog's chip is not readable by an ISO-standard scanner at the port of entry, the dog may be denied entry or placed in quarantine at your expense.
Before traveling: Visit your veterinarian and ask them to scan the microchip with a universal reader to confirm it returns the correct 15-digit number. If your dog has a non-ISO chip, you will need to have an ISO-compliant chip implanted before the rabies vaccination date listed on your documentation. Keep in mind that re-vaccination after a new chip implantation adds 28 days (the standard post-vaccination waiting period) to your timeline.
Common Misconceptions About the CDC Dog Import Form
| Myth | Fact |
|---|---|
| "The CDC form replaces my state's animal import requirements." | It does not. Many US states — including Hawaii, California, and New York — have additional import requirements. You must comply with both federal (CDC) and state-level regulations. |
| "Service dogs and emotional support animals are exempt." | They are not. All dogs entering the US — regardless of their working status — must meet CDC importation requirements. There are no exemptions for service animals. |
| "I can fill out the form at the airport when I arrive." | No. The form must be submitted and approved before the dog's arrival. Airlines will verify your CDC import permit at check-in. Without it, your dog will not be allowed to board. |
| "Puppies under 6 months can still enter with a vet letter." | Under the current regulations, dogs must be at least 6 months old at time of entry. There are no age waivers. This ensures sufficient time for rabies vaccination and immune response development. |
| "The CDC form costs hundreds of dollars." | The CDC processing fee is $1 per dog. However, associated costs — rabies titer testing ($150–$400), veterinary visits, microchipping ($45–$75), and potential quarantine fees — can bring total import preparation costs to $500–$2,000+ per dog. |
| "My dog was vaccinated in the US before we left — that counts." | US-administered rabies vaccinations are accepted, but the documentation must still meet all CDC formatting requirements, and the microchip must have been implanted before or at the time of that vaccination. |
Real Costs: Budgeting for Dog Importation in 2026
The CDC form fee itself is negligible. The actual expenses come from veterinary preparation, testing, and logistics. Here is a realistic cost breakdown based on current veterinary pricing:
| Expense | Low-Risk Country | High-Risk Country |
|---|---|---|
| CDC Import Form fee | $1 | $1 |
| ISO microchip implantation | $45–$75 | $45–$75 |
| Rabies vaccination (if needed) | $20–$50 | $20–$50 |
| FAVN rabies titer test | Not required | $150–$400 |
| Veterinary exam/documentation | $75–$200 | $75–$200 |
| Airline pet fee (cabin or cargo) | $125–$500+ | $125–$2,000+ |
| Estimated total | $266–$826 | $416–$2,726 |
Quarantine costs, if your dog is denied entry due to incomplete documentation, can run $50–$150 per day at an approved facility, plus return shipping if the dog must be sent back to the country of origin. These costs are the importer's responsibility.
Timeline Planning: When to Start Your Application
The single biggest mistake importers make is underestimating the preparation timeline. Here is a realistic schedule:
Recommended Preparation Timeline
- 4–6 months before travel: Ensure ISO-compliant microchip is implanted. If your dog needs a new chip, this must happen before the rabies vaccination you plan to use for import documentation.
- 3–4 months before travel: Administer or verify rabies vaccination. For high-rabies countries, schedule the FAVN titer test — results typically take 4–6 weeks from approved labs (Kansas State University or Auburn University in the US; APHA in the UK).
- 2–3 months before travel: Receive titer test results. Confirm the result shows ≥0.5 IU/mL. If it does not, a booster vaccination and re-test will add another 6–8 weeks.
- 2–4 weeks before travel: Submit the CDC Dog Import Form online. Gather all supporting documents. Book airline travel only after the CDC permit is approved.
- 1 week before travel: Obtain a veterinary health certificate (USDA-endorsed if required by the destination state). Confirm all documents match — microchip number, vaccination dates, dog description.
- Day of travel: Carry printed copies of the CDC Import Permit, rabies certificate, titer results, and health certificate. Have digital copies on your phone as backup.
What Happens If Your Dog Is Denied Entry
Under the 2024 regulations, dogs that arrive at a US port of entry without a valid CDC Import Permit, without proper rabies documentation, or with an unreadable microchip face three possible outcomes:
- Quarantine at importer's expense — the dog is held at a CDC-approved animal care facility until documentation can be verified or additional testing is completed. This can take days to weeks.
- Re-exportation — the dog is placed on the next available flight back to the country of origin. All costs fall on the importer.
- Euthanasia — in extreme cases where the dog poses a verified public health risk and no other option is available, the CDC reserves the authority to order euthanasia. This is rare but legally established under 42 CFR §71.51.
Important: The CDC advises that you do not travel with your dog until you have received the approved import permit in hand. Airline check-in agents are now trained to verify CDC permits before allowing dogs to board international flights bound for the US.
Frequently Asked Questions
Do I need a CDC dog import form if I'm only transiting through the US?
If your dog does not clear US Customs and Border Protection (i.e., remains in the international transit area of the airport), the CDC import form is generally not required. However, if you must claim your dog and re-check them for a connecting flight — which is common at most US airports — the dog has technically entered the US and the import requirements apply. Always confirm with your airline before booking transit routes.
Can rescue organizations import dogs under the new rules?
Yes, but rescue organizations must follow the same requirements as individual importers. Each dog needs its own CDC Dog Import Form, microchip, and rabies documentation. Commercial importers (anyone importing dogs for transfer to another person, including rescues) must also comply with USDA regulations under the Animal Welfare Act. Many rescue organizations have reported increased costs and longer timelines since the 2024 rules took effect — plan accordingly.
What if my dog's rabies vaccination expires between form approval and travel?
Your rabies vaccination must be valid on the date of entry into the United States. If it expires before travel, you will need to re-vaccinate and update your CDC Import Form. A new 28-day waiting period applies after re-vaccination before the dog can enter the US. Always check expiration dates carefully when scheduling travel.
Are emotional support animals or therapy dogs exempt?
No. The CDC regulations make no distinction between pet dogs, service dogs, emotional support animals, or therapy dogs. All dogs entering the US must meet identical importation requirements. The Americans with Disabilities Act (ADA) protections for service animals do not override federal public health importation regulations.
How do I check if my dog's country of origin is classified as high-risk?
The CDC maintains an updated list of high-rabies countries on their dog importation page. As of 2026, over 110 countries are classified as high-risk, including most nations in Africa, Asia, and parts of South America. Countries like the United Kingdom, Australia, New Zealand, Japan, and most EU member states are classified as low-risk or rabies-free. This list is updated periodically — always verify within 30 days of your planned travel date.
What is the FAVN titer test and where can my dog get one?
The Fluorescent Antibody Virus Neutralization (FAVN) test measures your dog's rabies antibody levels in blood serum. It must show a result of ≥0.5 International Units per milliliter (IU/mL) to satisfy CDC requirements for dogs from high-rabies countries. In the US, the two approved laboratories are the Kansas State University Veterinary Diagnostic Laboratory and the Auburn University College of Veterinary Medicine. Turnaround time is typically 4–6 weeks from sample receipt. Your veterinarian draws the blood sample and ships it to the lab.
Additional Resources and Contact Information
- CDC Dog Importation Information: cdc.gov/importation/dogs
- USDA APHIS Animal Import Regulations: aphis.usda.gov
- Kansas State University Rabies Serology Lab: ksvdl.org/rabies-serology
- AVMA Travel Resources: avma.org
This guide is for informational purposes and reflects the CDC regulations in effect as of 2026. Importation requirements can change. Always verify current regulations on the official CDC website and consult with your veterinarian before planning international dog travel. For questions about specific importation cases, contact the CDC directly at their importation inquiry line.
Marcus Aldridge
All our authors care for dogs every day — read more of their work on the authors page.
