Files consist of Oklahoma Support Information System (OSIS) reports; incoming reports from other state and federal agencies, and private sources; and unit-created reports which include the following types of child support enforcement case information: paternity, locate, interstate, good cause closures, Internal Revenue Service tax offsets, Oklahoma Tax Commission tax offsets, administrative offsets, passport denials, unemployment intercepts, workers’ compensation intercepts, overpayment and IV-D recovery, and unreimbursed assistance.