Alien Registration Card (Green Card)
U.S. lawful permanent residents will continue to be able to use their Alien Registration Card issued by the Department of Homeland Security along with a valid passport from the country of citizenship for entry to the United States.
Card renewal is an important matter. ARC holders (United States permanent residents) with expired cards may be considered "out of status" and may be denied entry/reentry into the United States. If your ARC was issued over 10 years ago, you should check the expiration date printed on the front of the card. If your card is expired or is about to expire, you should renew your card before you sail.
If you are holding an old edition ARC WITHOUT an expiration date, you will not be detained from entering the United States but U.S. Customs and Border Protection highly suggests that you apply for a new card before you sail.
For additional information, visit: http://www.usimmigrationsupport.org/greencard_renewal.html