Best of luck on your move! Here's quick link that will take you to all the states' poultry import requirements:
http://www.aphis.usda.gov/import_export/animals/animal_import/animal_imports_states.shtml
Generally, you can't move poultry into a state without a veterinary health certificate. Or...
I was just curious because I know hatcheries only vaccinate for Marek's disease and sometimes coccidia. I don't know how prevalent other diseases are in backyard flocks of chickens, but it seems like there could be the potential for catching, for example, Newcastle disease, infectious bursal...