Health certificates - both standard and interstate - are issued by each individual state and are obtained from licensed veternarians. If your dog is travelling across state lines, be aware of the different entry regulations for each state and request an interstate certificate from your veternarian along with signed copies

• A health certificate states that your dog is free from infectious diseases and current on all vaccinations. It does not indicate that your dog is in generally good health.
• If you are purchasing an animal, we strongly recommend that you request that an actual physical examination be conducted by a qualified veterinarian. This additional measure will insure that you are buying a healthy animal and avoid any difficulties that might arise during transport or after arrival.
• If you are using a commercial transport service (ground or air) the USDA reglations state: A health certificate issued within 10 days of shipment must accompany any dog, cat, or non-human primate that is transported in commerce by a (USDA) licensee or registrant. Regulated dogs, cats, and non-human primates transported intrastate by commercial carrier, transported interstate, or in foreign commerce, are required to have properly executed health certificates. However, dogs, cats,and nonhuman primates transported within the State and in the licensee/registrant vehicle may be transported without a health certificate.
• As an example of individual state regulations, Arizona requires an original health certificate issued by an accredited veterinarian within 30 days prior to entry. Photocopies of health certificates must have an original veterinarian signature. The health certificate must document that the animal is currently vaccinated against rabies according to the requirements of the National Association of State Public Health Veterinarians Compendium of Animal Rabies Control."