| ID | | IATA Cargo-IMP | | Message |
| 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 |
| CAC |  |  |  |  |  |  |  |  |  |  |  |  |  |  | CASS Advice of Correction |
| CIR |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Customs Inventory Report |
| CSI |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Customs Supplementary Information |
| CSN |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Customs Status Notification |
| DCM |  |  |  |  |  |  |  |  |  |  |  |  |  |  | CASS Debit or Credit Memorandum |
| FAC |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Airline Confirmation |
| FAD |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Advice of Discrepancy |
| FAI |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Freight Agent Information |
| FAR |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Adjustment Request |
| FAS |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Freight Agent Supplementary Information |
| FBL |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Freight Booked List |
| FBR |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Freight Booked List Request |
| FBV |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Courier Baggage Voucher |
| FCA |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Charges Correction Acknowledgement |
| FCB |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Freight CASS Billing |
| FCC |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Charges Correction Request |
| FCI |  |  |  |  |  |  |  |  |  |  |  |  |  |  | CASS Invoice |
| FCR |  |  |  |  |  |  |  |  |  |  |  |  |  |  | CASS Remittance |
| FCV |  |  |  |  |  |  |  |  |  |  |  |  |  |  | CASS Void/Cancel Air Waybill |
| FDA |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Discrepancy Answer |
| FDD |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Declaration for Dangerous Goods Data |
| FFA |  |  |  |  |  |  |  |  |  |  |  |  |  |  | AWB Space Allocation Answer |
| FFM |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Airline Flight Manifest |
| FFR |  |  |  |  |  |  |  |  |  |  |  |  |  |  | AWB Space Allocation Request |
| FFT |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Freight Transaction |
| FHL |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Consolidation List |
| FMA |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Message Acknowledgement |
| FMB |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Notification of Embargo |
| FMC |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Change of Embargo |
| FMR |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Piece Manifest Request |
| FMX |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Cancellation of Embargo |
| FNA |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Error |
| FOA |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Allotment Information Answer |
| FOR |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Allotment Information Request |
| FPA |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Piece Status Answer |
| FPM |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Piece Manifest |
| FPR |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Piece Status Request |
| FPU |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Piece Status Update |
| FQA |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Shipment Charge Calculation Answer |
| FQR |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Shipment Charge Calculation Request |
| FRA |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Supplementary Rate Information Answer |
| FRP |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Irregularity Report |
| FRR |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Supplementary Rate Information Request |
| FSA |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Status Answer |
| FSB |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Substitute Air Waybill Data |
| FSL |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Multiple Status Update List |
| FSR |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Status Request |
| FSU |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Status Update |
| FTA |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Rate Information Answer |
| FTR |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Rate Information Request |
| FUA |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ULD Space Allocation Answer |
| FUM |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Unit Load Device Manifest |
| FUR |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ULD Space Allocation Request |
| FVA |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Schedule and Availability Information Answer |
| FVR |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Schedule and Availability Information Request |
| FWB |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Air Waybill Data |
| FWC |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Air Waybill Charges Collect |
| FWR |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Air Waybill Data Request |
| FXX |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Cancellation |
| FYT |  |  |  |  |  |  |  |  |  |  |  |  |  |  | CCS Free Text |
| FZA |  |  |  |  |  |  |  |  |  |  |  |  |  |  | House Waybill Data Request |
| FZB |  |  |  |  |  |  |  |  |  |  |  |  |  |  | House Waybill Data |
| FZC |  |  |  |  |  |  |  |  |  |  |  |  |  |  | House Waybill Status Request |
| FZD |  |  |  |  |  |  |  |  |  |  |  |  |  |  | House Waybill Status Answer |
| FZE |  |  |  |  |  |  |  |  |  |  |  |  |  |  | House Waybill Status Update |
| MAM |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Mail Advisory |
| MLD |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Mail Label Data |
| SBA |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Surface Transportation Booking Answer |
| SBR |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Surface Transportation Booking Request |
| SCI |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Surface Transportation Charges Information |
| SPA |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Surface Transportation Planning Answer |
| SPR |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Surface Transportation Planning Request |
| SPX |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Surface Transportation Planning Cancellation |
| SSU |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Surface Transportation Status Update |
| STA |  |  |  |  |  |  |  |  |  |  |  |  |  |  | General Status Answer |
| STM |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Surface Transportation Movement |
| STR |  |  |  |  |  |  |  |  |  |  |  |  |  |  | General Status Request |