New Requirements for Travelers Between the United States and the Western Hemisphere

The Intelligence Reform and Terrorism Prevention Act of 2004 requires
that by January 1, 2008, travelers to and from the Caribbean, Bermuda,
Panama, Mexico and Canada have a passport or other secure, accepted
document to enter or re-enter the United States. In order to facilitate
the implementation of this requirement, the Administration is proposing
to complete it in phases following a proposed timeline, which will be
published in the Federal Register in the near future.

This is a change from prior travel requirements and will affect all
United States citizens entering the United States from countries within
the Western Hemisphere who do not currently possess valid passports.
This new requirement will also affect certain foreign nationals who
currently are not required to present a passport to travel to the United
States. Most Canadian citizens, citizens of the British Overseas
Territory of Bermuda, and to a lesser degree, Mexican citizens will be
affected by the implementation of this requirement.

Original Document located at:
http://travel.state.gov/travel/cbpmc/cbpmc_2223.html