[allan5oh]

http://www.cbp.gov/xp/cgov/travel/va..._canmexber.xml

Beginning January 31, 2008, U.S. and Canadian citizens ages 19 and over will need to present a government-issued photo ID such as a driver’s license, and proof of citizenship, such as a birth certificate, naturalization certificate or passport to enter the U.S. by land or sea.

A passport or NEXUS, SENTRI or FAST card will be accepted as ID and citizenship requirements. Border Crossing Cards will continue to be accepted documents for Mexican citizens to meet both requirements.

As early as summer 2008, all travelers who enter or depart the U.S. by any means (land, sea or air) will be required to have a valid passport, NEXUS, SENTRI, FAST, Border Crossing Card or other acceptable document.

The State Department also intends to make available in spring 2008 a limited-use Passport Card, specifically for land and sea travel from these neighboring countries. In addition, several states including Washington, Vermont and New York are creating an Enhanced Driver’s License that will fulfill these new identification requirements. Ample notice of the exact date of implementation will be provided to ensure travelers can obtain the appropriate documents.

Yes, this includes commercial vehicles.

This is ONLY for US bound trucks.