U.S. EPA applied-regulations result for an item. Item info appears once; a single HTS line can be flagged for more than one EPA program (e.g. a chemical refrigerant → TS1 + ODS/HFC), so the per-program determinations (each the basis of one ACE PGA message set) are carried in programs. Entity- and shipment-specific records (EPA registration / establishment numbers, engine family / test-group numbers, the TSCA positive/negative certification choice, bonds, certificates of analysis) are collected downstream via the compliance questionnaire.