print email comment close Western Hemisphere Travel Initiative (WHTI) URL: http://www.getyouhome.gov/ Description: The WHTI "requires U.S. and Canadian travelers to present a passport or other document that denotes identity and citizenship when entering the U.S. ... WHTI will go into effect June 1, 2009 for land and sea travel into the U.S." Find information about current travel documents (such as passports and enhanced driver's licenses) and requirements. The site notes that you should "allow several weeks" for new document processing. From U.S. Customs and Border Patrol. Publisher: U.S. Customs and Border Patrol Extra Keywords Mexico LII Database Information: Record 28186 created by Maria Brandt on 04/03/2009 Last modification on 04/13/2009 Published: 04/16/2009   LII Item ID: http://lii.org/cs/lii/view/item/28186