The U.S. Citizenship and Immigration Services announces that duplicate ASC notices were issued by mistake when the agency was transitioning to a new computer system. Notices that had previously been issued under the old system were sent again under the new system. Applicants who have already attended their ASC appointments and for whom the USCIS has successfully captured their biometric information should not have to attend the second interview. However, the USCIS does caution that applicants may want to respond to the duplicate ASC notice by indicating that the applicant has already attended an appointment.