Whether you own a purebred cat or a beautiful domestic cat with no known history, you still need to register him or her with your local town, city, region, etc. Most areas keep records of animals so they can ensure the animal has had rabies vaccines, ensure the animal is registered and accounted for by an owner, and to be able to help return a cat if lost or picked up by authorities or a good Samaritan. The question for registering is what exactly you need to do for your area. Your vet will most likely know the routine. Oftentimes, registration includes completing a form by the town clerk (or governing authority) and submitting it along with a copy of vaccinations (especially the rabies vaccination). Your local veterinarian Cherry Hill NJ most likely has a certificate of vaccination to give you once your cat has had its shots. Send this off with the appropriate paperwork and payment if required.