Beginning December 31, 2006, travelers to and from certain destinations in the Western Hemisphere will be required to have a passport or another secure document to enter or re-enter the United States. Passports or other accepted documents will be required for all air and sea travel to or from Canada, Mexico, Central and South America, the Caribbean and Bermuda.
Beginning January 23, 2007, a passport or another secured document will be required for all U.S. air border crossings.
Need a Rush Passport or Visa?
Those traveling to the U.S. by land and sea won't have to present a passport until June 1, 2009, according to a ruling issued by the U.S. Department of Homeland Security and the State Department.
This requirement applies to all US citizens and includes children and infants.
The Bureau of Consular Affairs (CA) PREPARING FOR A TRIP ABROAD Learn about your destination. Quick Facts
June 1, 2009. As part of the Western Hemisphere Travel Initiative, all travelers entering the U.S. by land or sea will need to show one of six different documents to prove both identity and citizenship: passport; U.S. Passport Card; new, RFID-enabled state/province-issued driver's license from U.S. or Canada; or NEXUS, SENTRI or FAST trusted traveler cards. Details about these document requirements are available at Info.
Go to Transportation Security Administration (TSA)
to the top