Farmers may want to bring in livestock or breeding stock to their farm from another state. Regulation of the movement of live animals in and out of the state is controlled by the Office of the State Veterinarian.
In general, to bring livestock into or out of the state, you must have a valid health certificate for the animal(s) which shows that the animal has been inspected by a permitted vet and is not infected with nor has come into contact with animals carrying a communicable disease.
Contact your local large animal vet or the Office of the State Veterinarian in your state for more information on how to obtain a certificate of vet inspection.