<Li> The NEXUS card allows border crossing between the U.S. and Canada for U.S. nationals and Canadian citizens . It can also be used for air travel as the only means of identification for U.S. nationals and Canadian citizens . The card can also be used for entering the U.S. from Mexico but not vice versa . </Li> <Li> The SENTRI card allows passport - free entry into the U.S. from Mexico and Canada (but not vice versa) for U.S. citizens and nationals as well as Canadian citizens . </Li> <Li> The FAST card can be used for crossing between U.S. and Canada, as well as entering U.S. from Mexico for U.S. and Canadian citizens . </Li> <Li> U.S. nationals may further enter the U.S. and Canada using an enhanced driver license issued by the States of Vermont, Washington, Michigan and New York (which qualify as WHTI compliant). Other documents that can be used to enter the U.S. include: enhanced tribal cards; U.S. military ID cards plus military travel orders; U.S. merchant mariner ID cards, when traveling on maritime business; Native American tribal ID cards; Form I - 872 American Indian card . </Li>

Is passport id the same as passport number