As of June 1, 2009, U.S. citizens returning home by land or sea from Canada, Mexico, the Caribbean region or Bermuda are required to have a passport, passport card, or other travel document approved by the Department of Homeland Security. Before these new rules went into effect, U.S. citizens only needed to show proof of identity and U.S. citizenship.
AIR TRAVEL
As of January 1, 2008, U.S. citizens returning from Canada, Mexico, the Caribbean region or Bermuda, by air, are required to present a passport to enter or re-enter the United States.
LAND AND SEA TRAVEL
Now, as of June 1, 2009, the full requirements of the "Western Hemisphere Travel Initiative" regarding land and sea travel are being implemented. U.S. citizens entering the U.S. by land or sea from Canada, Mexico, the Caribbean region or Bermuda will be required to present one of the following travel documents:
Document Rules for Special Groups:
ABOUT THE WESTERN HEMISPHERE TRAVEL INITIATIVE (WHTI)
The Western Hemisphere Travel Initiative (WHTI) is a result of the Intelligence Reform and Terrorism Prevention Act of 2004 to strengthen U.S. border security while facilitating entry for U.S. citizens and legitimate foreign visitors by providing standardized documentation that enables the Department of Homeland Security to quickly and reliably identify a traveler. The initiative requires all travelers to present a passport or other document that denotes identity and citizenship when entering the United States. The countries covered by the Western Hemisphere Travel Initiative are Canada, Mexico, the Caribbean region and Bermuda.
MORE INFORMATION
• Apply for a passport>>
• GetYouHome.gov>>
• The US Department of State>>