US Citizenship & Immigration Services (USCIS) says that due to a processing error, on May 4, 2018, the agency mailed a number of biometric services appointment notices with incorrect Application Support Center (ASC) locations to petitioners who filed Form I-751, Petition to Remove Conditions on Residence. These affected notices have a date of May 4, 2018 and a case type of “I-751 – PETITION TO REMOVE CONDITIONS ON RESIDENCE.” Theses notices instruct petitioners to appear for their biometric services appointments beginning the week of May 21, 2018, at ASCs located out of the normal geographic area.