To import your pet into Mexico, you will need a health certificate (original and a copy) issued by your veterinarian. The certificate must be on letterhead with the veterinarian’s license number printed on it. You will need to present this certificate at the Office of Animal and Plant Health Inspection (OISA) located at the port of entry to Mexico.
If you bring more than two pets, you must complete additional forms and pay additional taxes.
The U.S. Department of Agriculture provides further details on requirement for importing your pet into Mexico.