Thought this info might be helpful to those debating passport/birth certificate options. New regs from the State Department.
http://travel.state.gov/travel/cbpmc/cbpmc_2223.html
New Requirements for Travelers Between the United States and the Western Hemisphere
Travelers to and from the Caribbean, Bermuda, Panama, Mexico and Canada will be required to have a passport or other secure, accepted document to enter or re-enter the United States.* 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.*
December 31, 2005 Passport or other accepted document required for all travel (air/sea) to or from the Caribbean, Bermuda, Central and South America.
December 31, 2006 Passport or other accepted document required for all air and sea travel to or from Mexico and Canada.
December 31, 2007 Passport or other accepted document required for all air, sea and land border crossings.
http://travel.state.gov/travel/cbpmc/cbpmc_2223.html
New Requirements for Travelers Between the United States and the Western Hemisphere
Travelers to and from the Caribbean, Bermuda, Panama, Mexico and Canada will be required to have a passport or other secure, accepted document to enter or re-enter the United States.* 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.*
December 31, 2005 Passport or other accepted document required for all travel (air/sea) to or from the Caribbean, Bermuda, Central and South America.
December 31, 2006 Passport or other accepted document required for all air and sea travel to or from Mexico and Canada.
December 31, 2007 Passport or other accepted document required for all air, sea and land border crossings.
