Court and law enforcement agencies use this transaction set to notify other parties—such as correctional facilities, bail agencies, legal service providers, or administrative justice systems—of judicial proceedings, charges, sentencing decisions, and other administration of justice events. Typically sent in response to an arrest, court filing, or case status change, the 175 communicates official notice of case activity. The BGN (Beginning Segment) establishes the transaction purpose and date, the CDS (Case Description) segments provide core case information within organized loops, and the CED (Administration of Justice Event Description) segments document specific judicial events with associated dates, amounts, quantities, and conditions.

Consider a scenario where the District Court of Cook County, Illinois sends an X12 175 to the Illinois Department of Corrections following sentencing of a defendant. The court initiates the transaction with BGN identifying it as a sentencing notice. Within the CDS loop, it describes the case and charges; within the nested CED loop, it records the sentencing event with a DTM segment capturing the sentencing date, an AMT segment specifying the fine amount, a QTY segment indicating sentence length, and optional NM1 loops identifying the judge, defendant, and assigned case worker. Reference segments (REF) link to the case number and docket identifier. The Department of Corrections receives this structured notification and uses it to initiate intake and classification procedures for the inmate.