"Pink" I-551 "Resident Alien" Card
FRONT: Pink background (blue header bar): INS seal overlaps photo area. Repeating "I-551" becomes visible when card is tilted under normal light. Expiration date on front of card: Month, day and year.
BACK: Color gradually changes from pink to blue, with map of U.S. in white. Three lines of machine readable printing at bottom on white background. Immigrant classification and admission/adjustment date on back of card. First set of code is immigrant classification, beginning with letter(s) followed by number(s). Third set of code is admission/adjustment date, beginning with year, month, and day.
(Rev. March 16, 1998)