I-539
Card Was Mailed To Me
Extend or change status
What this means
Your card left USCIS and is with the Postal Service (or was delivered). Check your mailbox and any tracking number shown in your case history.
What to do next
Watch for delivery. If the card does not arrive within the USCIS wait window, follow the "card was not delivered" instructions on uscis.gov. Never laminate a green card.