| A | Senior person rate Rate class applies to senior persons. |
| B | Basic Code specifying that the rate or tariff is a basic one. |
| C | Specific commodity rate Code specifying the specific commodity rate. |
| D | Teenager rate Rate class applies to teenagers. |
| E | Child rate Rate class applies to children. |
| F | Adult rate Rate class applies to adults. |
| K | Rate per kilogram Code specifying the rate per kilogram. |
| M | Minimum charge rate Code specifying the minimum charge rate. |
| N | Normal rate Code specifying the normal rate. |
| Q | Quantity rate Code specifying the quantity rate. |
| R | Class rate (Reduction on normal rate) Code specifying the reduction on normal rate. |
| S | Class rate (Surcharge on normal rate) Code specifying the surcharge on normal rate. |