Proof of entry is signified by U.S. immigration stamp. Date of entry is stamped. Non-immigrant visa classification (letter or letter and number) is printed or stamped on "Admitted" line. Valid status expires on date enumerated at "Until" section of stamp.
Refugees and asylees each receive a separate INS stamp. Asylum seekers have "valid to" date, while refugees have a date of admission.
(Rev. March 16, 1998)