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WASHINGTON – U.S. Citizenship and Immigration Services (USCIS) will change the filing locations for Form I-130, Petition for Alien Relative. Effective Jan. 1, 2012, domestic petitioners will mail their stand-alone I-130 applications to either the Chicago Lockbox or the Phoenix Lockbox, depending on where they reside in the United States. The new filing locations will be updated with the corresponding addresses on Jan.