Starting April 2, USCIS will destroy Permanent Resident Cards, Employment Authorization Cards and Travel Documents returned as undeliverable by the U.S. Postal Service after 60 business days if USCIS is not contacted by the document's intended recipient to provide the correct address. USCIS encourages applicants to report a change of address within 10 days of relocation using the procedures outlined at uscis.gov/addresschange.  When your case is pending involving the cards and move, just filing AR-11 is not enough. Repeat, filing AR-11 alone is not enough!! You should also report change of address to the USCIS office where a case is pending by phone call (800 number) or online, persuant to the instruction which is linked above. http://www.immigration-law.com...