| CA | Carrier Initiated Revenue Waybill Cancel |
| CC | System Initiated Cancelled and Fully Concurred |
| CH | Carrier Initiated Challenge |
| CO | Carrier Initiated Concurrence Without Opinion |
| CP | Carrier Initiated Concurrence With Opinion |
| CT | Carrier Initiated Concurrence to Date Change Only |
| DO | System Initiated Deletion From Route by Another Carrier |
| DR | Carrier Initiated Deletion from Route (Not in Interline Movement) |
| DT | Carrier Initiated Settlement Date Change |
| LT | Delay Shipment Dispute |
| NP | Null Settled Due to AAR Rule 11 Parent Null Settled |
| OP | Carrier Initiated Waybill Opinion |
| OR | Carrier Initiated Revenue Waybill |
| PS | System Initiated Postponement to Settlement Due to AAR Rule 11 Notify Party |
| PT | Prepaid or Collect Dispute |
| RT | Route Dispute |
| SA | System Initiated Settlement, Active Road on Silent Concurrence |
| SC | System Initiated Settlement, Composite Version Due to Forced Settlement |
| SF | System Initiated Settlement, Force Settled on Dispute |
| SN | System Initiated Settlement, Null Value |
| SS | System Initiated Settlement, Silent Road on Silent Concurrence |
| ST | System Initiated Settlement, Fully Concurred |
| T1 | System Initiated Trace for Concurrence to AAR Rule 11 Notify |
| TR | System Initiated Trace for Concurrence to Revenue Waybill |
| UT | AAR Rule 11 Dispute |