What is WHTI?
WHTI: The Western Hemisphere Travel Initiative (WHTI) sets the documents U.S. citizens need to re-enter the United States by land or sea.
Source: U.S. Customs and Border Protection: WHTI
Which terms are related?
- Closed-loop cruise: A closed-loop cruise starts and ends at the same U.S. port on the same ship and stays within the Western Hemisphere.
- Passport card: A passport card is a wallet-size U.S. passport valid only for land and sea travel to Canada, Mexico, Bermuda and the Caribbean.