There are often no limitations placed on those who want to import their own pet cats into the United States.
The Centers for Disease Control and Prevention (CDC) will not request a general certificate of health from you.
Pet cats are subject to examination at ports of entry and may be refused admission into the United States if there is evidence that they have an infectious illness that may be transferred to people.
Although a rabies (also known as rage) certificate is not necessary for entry into the United States, a rage certificate is required for entry into Canada.
If a cat seems to be sick or is otherwise not in apparent good health, a further examination by a qualified veterinarian at the port of entry may be necessary at the owner's cost if the cat looks to be sick or is otherwise not in apparent good health.
Even if they came from the continental United States, all domestic cats brought into the territory of Guam or the state of Hawaii are required to spend a certain amount of time in a quarantine facility.
If your cat will be flying into the United States, you should check with the airline to see if there are any extra criteria you need to fulfill before bringing your cat into the country.
For instance, a certificate of health from a licensed veterinarian is required by the majority of airlines.