Protecting American Commerce and Travel Act of 2007

Protecting American Commerce and Travel Act of 2007 - Directs the Secretary of Homeland Security (Secretary) to conduct a pilot program to determine if a state driver's license may be enhanced to satisfy requirements of the Intelligence Reform and Terrorism Prevention Act of 2004 (IRTPA) for land and sea travel only.

Amends IRTPA to direct the Secretary to establish a process to permit a U.S. citizen who does not possess a passport to reenter the United States at a U.S. land border. Provides that a U.S. citizen under 17 years shall not be required to present a passport when returning or traveling to the United States from Canada, Mexico, Bermuda, or the Caribbean at specified ports of entry. Authorizes the Secretary to consider expanding the special rule for certain minors aged 17 or 18 traveling between the United States and Canada as part of an authorized, supervised school trip.

Directs the Secretary to issue to U.S. citizen applicants a passport card. Requires the card to be designed to provide a platform on which expedited traveler programs (such as NEXUS, NEXUS AIR, SENTRI, FAST, and Registered Traveler) can be added.

Directs the Secretary of State and the Secretary to develop a public communications plan.

Directs the Secretary to: (1) merge the FAST and NEXUS programs; and (2) conduct a cost-benefit analysis regarding the use of identification cards.