We have been taking a dog and a cat with us for the past 6 years. Our vet always gives us a health certificate. A separate one for each pet. They cannot be on one but must be separate. The 10 day rule is correct but we have never done it. Always get it too early as we live in Missouri and take too long to get to the boarder. Actually, no one has ever asked about our pets. Our dog only gets a rabies vaccination every 3 years but our vet gives her a new tag just in case anyone questions that it is more than a year old.