Many people have recommended this book for driving your way around Mexico. I bought a copy myself and can tell you it is not 100% up to date, but there is a lot of detail for most drivers...It may work for you.
JANUARY 31, 2008
U.S. and Canadian citizens will need to present either a WHTI-compliant document, or a government-issued photo ID, such as a driver’s license, plus proof of citizenship, such as a birth certificate. DHS also proposes to begin alternative procedures for U.S. and Canadian children at that time.
SUMMER 2008
At a later date, to be determined, the departments will implement the full requirements of the land and sea phase of WHTI. The proposed rules require most U.S. citizens entering the United States at sea or land ports of entry to have either a U.S. passport; a U.S. passport card; a trusted traveler card such as NEXUS, FAST, or SENTRI; a valid Merchant Mariner Document (MMD) when traveling in conjunction with official maritime business; or a valid U.S. Military identification card when traveling on official orders.
The implementation date will be determined based on a number of factors, including the progress of actions undertaken by the Department of Homeland Security to implement the WHTI requirements and the availability of WHTI compliant documents on both sides of the border. DHS and DOS expect the date of full WHTI implementation to be in the summer of 2008. The precise implementation date will be formally announced with at least 60 days notice.
Note: The passport requirement does NOT apply to U.S. citizens traveling to or returning directly from a U.S. territory. U.S. PASSPORT AND OTHER TRAVEL DOCUMENTS
U.S.Passport: U.S. citizens may present a valid U.S. passport when traveling via air, land or sea between the U.S. and the aforementioned Western Hemisphere countries.
The Passport Card: This limited-use, wallet-size passport card is not yet available and is under development. When available it will only be valid for land and sea travel between the U.S. and Canada, Mexico and the Caribbean region (includes Bermuda).
The Western Hemisphere Travel Initiative is a result of the Intelligence Reform and Prevention Act of 2004 (IRTPA), requiring all travelers to present a passport or other document that denotes identity and citizenship when entering the U.S.
The Department of Homeland Security (DHS) announced on February 22 its intent to propose, as part of the Notice of Proposed Rulemaking on the Western Hemisphere Travel Initiative (WHTI), significant flexibility regarding travel documents required for U.S. and Canadian children as part of WHTI requirements for U.S. land and sea border entry in 2008.
The goal of the initiative is to strengthen U.S. border security while facilitating entry for U.S. citizens and legitimate foreign visitors by providing standardized documentation that enables the Department of Homeland Security to quickly and reliably identify a traveler.
