International Students
Traveling Outside The US
Reentry for F-1 students who are traveling outside the US for less than 5 months:
http://www.ice.gov/sevis/travel/faq_f2.htm
Renewing your F-1 student visa:
http://www.ice.gov/sevis/travel/faq_f3.htm
Reentry for F-2 dependents:
http://www.ice.gov/sevis/travel/faq_f6.htm
Travel during Optional Practical Training:
See the section on "Employment For F-1 Students" of the Employment page.