On June 1, 2009, the U.S. government implemented the full requirements of the land and sea phase of the Western Hemisphere Travel Initiative (WHTI). The proposed rules require most U.S. citizens entering the United States at sea or land ports of entry to have a passport, passport card, or other travel document approved by the Department of Homeland Security
U.S. Passport Card – This is a new, limited-use travel document that fits in your wallet and costs less than a U.S. Passport. It is only valid for travel by land and sea in North America. Arrival/departure by plane between countries in North America requires a passport.
All tours require a passport unless they begin and end in the United States.
Your passport must be valid for 6 months from the end date of the tour.
For information on how to obtain a U.S. passport, visit the U.S. State Department’s passport web site at Travel.State.gov.