Effective March 15, 2011, the USCIS has announced that all individuals who must notify USCIS of a change in address, must use a new address:
DHS/USCIS
Harrisonburg File Storage Facility
Attn: AR-11
1344 Pleasants Drive
Harrisonburg, VA 22801
To notify the USCIS of a change of address, noncitizens must use form AR-11.