Passports required June 1, 2009

I received notice from the Department of Homeland Security today that they have updated their website information. I have quoted part of the update below or follow the link back to get more details:

"Beginning June 1, 2009

U.S. citizens entering the United States at sea or land ports of entry are required to have documents that comply with the Western Hemisphere Travel Initiative (WHTI), most commonly a U.S. passport, a passport card, a trusted traveler card such as NEXUS, SENTRI or FAST, or an enhanced driver's license. "