The clinic that gave the shot
Every rabies vaccination is recorded with the product, lot number, date and the vet’s license. Ask the clinic for "a copy of the rabies certificate" and give them the pet’s name, your name, and roughly when it was done. The tag number on the collar helps them find it fast.
If you are not sure which clinic
The tag usually has the clinic’s name or a phone number stamped on it, or the issuing county. A bank or card statement from around the vaccination date will name the clinic too.
If the clinic has closed
Records transfer to the buyer or a custodian; the state veterinary board knows where. Our guide to a closed vet has the steps. Your county or city may also hold a copy if you licensed the pet.
What the copy must show
The same details as the original: the animal, the vaccine and lot, the date given and next due, and the vet’s name, license and signature. See what is a rabies certificate.
Sources
Rules and guidelines change, and businesses set their own policies. Confirm with your vet and with whoever is asking.