CDC requires that all dogs brought into the United States be healthy and vaccinated against rabies, including puppies and service animals. Dogs without proof of a valid rabies vaccination certificate may be denied entry into the United States. In limited circumstances, permits for dogs that have not been fully vaccinated against rabies may be available. Beginning in August 1, 2017 (or 60 days post Federal Register Notice), you can only apply for these permits online. The waiting period of 30 days post vaccination has also been changed to 28 days, beginning August 1, 2017 (or 60 days post Federal Register Notice). CDC strongly encourages dog owners to have their animals vaccinated against rabies before arriving in the United States.