Since Mexico and Canada share land borders with the United
States, many students and advisers may not think of
inquiring about entry requirements far in advance. Mexico
and Canada have distinct entry requirements, which must be
investigated by F-1 students and their families just like
any other country.
The lack of a valid Form DS-2019 will not prevent the
student's departure from the United States; it may, however,
prevent the student from entering Canada,
Mexico or the Caribbean.
Moreover, even a duplicate Form DS-2019, which lacks the
expected admission stamps, may be insufficient for the
student to obtain entry to Canada, Mexico
or the Caribbean.
Under certain circumstances, a J nonimmigrant with an
expired visa may re-enter the United States as though
the visa were still valid, provided that the
Exchange Visitort traveled
only to Canada, Mexico, or the adjacent Caribbean
islands for 30 days or less. Individuals whose
nonimmigrant status was changed to J-1 or J-2 after
having entered in another nonimmigrant status may also
be eligible for readmission under the automatic
extension of visa validity provision.