Bringing Pets from Mexico to the US

Bringing a pet from Mexico into the U.S. involves specific federal requirements that were significantly updated in late 2024 and 2025. While Mexico is considered a low-risk country for dog rabies, a new screwworm alert has added a specific requirement for all dogs entering from Mexico as of late 2024.

The following reflects the requirements as of April 2026.

🐕 Requirements for Dogs

All dogs entering the U.S. from Mexico, whether they are pets, for rescue, or for sale, must meet these federal standards:

– Universal CDC Requirements

• Age: The dog must be at least 6 months old at the time of entry.
• Microchip: The dog must have an ISO-compatible microchip. This chip must have been implanted before any required rabies vaccination was administered.
• CDC Dog Import Form: You must complete this online form (free) before arrival.
  • The form generates a receipt which you must present (digital or printed) to U.S. Customs.
  • For dogs from low-risk countries like Mexico, this receipt is valid for multiple entries for up to 6 months.
• Health: The dog must appear healthy upon arrival.

– USDA Screwworm Certification (Specific to Mexico)

As of November 2024, Mexico is listed as a country affected by screwworm.

• Inspection: The dog must be inspected for screwworm by a veterinarian within 5 days before departing Mexico.
• Certificate: You must have a certificate signed by a full-time salaried government veterinarian (or a clinical veterinarian authorized to sign on their behalf in Mexico) stating the dog is free from screwworm.

– Rabies Documentation

• U.S.-Vaccinated Dogs: You should carry the Certification of U.S.-Issued Rabies Vaccination form.
• Mexico-Vaccinated Dogs: Carry the official vaccination record provided by your veterinarian in Mexico. It must include the microchip number and valid dates.

🐈 Requirements for Cats

Bringing a cat is much simpler, as the CDC’s rigorous 2024/2025 rules only apply to dogs.

• CDC/USDA Requirements: There are no federal rabies vaccination requirements for cats entering from Mexico.
• Inspection: Cats are subject to inspection at the port of entry. If a cat appears ill, it may require a further examination by a licensed veterinarian at the owner’s expense.
• State Rules: While federal rules are light, specific states (like Hawaii or certain border states) may have their own requirements. Carrying a valid rabies certificate is always recommended.

Important Travel Logistics

• Port of Entry: If traveling with a dog, you must enter through the specific port of entry you listed on your CDC Dog Import Form.
• Airlines: Most airlines require a Health Certificate (Certificado de Salud) issued by a vet in Mexico within 10 days of travel. This is an airline policy, separate from the CDC rules.
• Frequent Travelers: If you cross the border often with your pet, look into the “Pet Program – Frequent Traveler” offered by SENASICA in Mexico, which can streamline the inspection process on the Mexican side of the border.

Pro Tip: Keep digital copies of all forms on your phone, but carry at least two printed copies of the CDC Dog Import Form Receipt, as some border locations may have limited digital scanning capabilities.