WASHINGTON — Federal officials hope a new education campaign will eliminate confusion at U.S. borders this summer when Americans will be required for the first time to show a passport or a special ID card to drive home from Canada or Mexico.
Travelers will no longer be able to use ordinary driver's licenses or birth certificates to get back into the U.S.
On June 1, U.S. citizens entering the country by land or sea will have to present a passport or government border-crossing card that shows their name and proof of citizenship. They could also use a military ID or an enhanced driver's license, which has extra security features and is only available in the states of Washington, New York, Vermont and Michigan.
http://www.usatoday.com/travel/news/2009-03-30-passports_N.htm
