Immigration Q & A: I married a U.S. citizen, but can I still travel on my student visa?
Some adjustment of status applicants do not have to obtain advance parole before traveling abroad. They include those on valid H-1B and L-1 employment visas. These applicants can re-enter the U.S. with either of those visas.
When advance parole is issued the document is good for multiple entries into the U.S., for a period of one year. Advance parole can be renewed for another year if the adjustment of status case is still being processed. The applicant must return to the U.S. in order to file for the renewal.