The Texas Service Center recently announced that they have established a new P.O. Box just for applicant and attorney address changes. The address is: Alien Address and Attorney Changes, US BCIS/TSC, PO Box 850891, Mesquite, TX 75185-0891. Attorneys or applicants should provide the applicant's name, A# (if applicable), application type and SRC#, in addition to the old and new addresses.