| AR | Appurtenance (Enhancements/Additions to Equipment) |
| BA | Barrels Identifies a billable unit expressed as a type of container |
| BX | Box |
| CC | Cubic Centimeter |
| CF | Cubic Foot |
| CM | Centimeter |
| DD | Interstate Commerce Commission (ICC) Docket 28300 Miles |
| DK | Kilometers |
| DM | Miles |
| DR | Drivers Identifies a billable unit expressed as persons operating equipment |
| EA | Each |
| FR | Flat Rate |
| FT | Foot |
| GC | 100 Gallons |
| GL | Gallon |
| HG | Rand McNally Highway Miles |
| KG | Kilogram |
| LB | Pound |
| LC | 100 Pounds |
| LH | 100 Liters |
| LR | Liter |
| MR | Mileage |
| MT | Measurement Ton |
| MV | Monetary Value |
| NB | Barge |
| NC | Car |
| ND | Cord A volume measurement |
| NG | Nights Identifies a billable unit expressed as nights; one night is the period between 6 p.m. of a given day to 6 a.m. of the next |
| NL | Load |
| NN | Train |
| NP | Piece |
| NR | Container |
| NT | Trailer |
| NU | Unit A specific measurement in rating shipments |
| NV | Vehicle |
| OR | Other |
| PB | PC*Miler for Rail Miles - Bulk |
| PF | PC*Miler for Rail Miles - Fuel |
| PI | PC*Miler for Rail Miles - Intermodal |
| PK | Package |
| PP | PC*Miler for Rail Miles - Practical |
| PR | Persons Identifies a billable unit expressed as persons performing an additional service other than the operation of equipment |
| PS | PC*Miler for Rail Miles - Shortest |
| QP | PC*Miler for Highway Miles - Practical |
| QS | PC*Miler for Highway Miles - Shortest |
| RR | Rail Carrier Miles |
| RV | Release Value |
| SP | Stops Identifies a billable unit expressed as stops that are authorized as part of a shipment of goods |
| ST | Number of States |
| SY | Square Yards |
| TD | Days |
| TH | Hours |
| TN | Tons Identifies a billable unit expressed as short tons (2000 pounds) |
| TR | Time |
| VA | Actual Volume |
| VC | Chargeable Volume |
| VM | Volume Metric Unit |