| A | Expiration date and a carrier's factor may be changed at any time. |
| B | Expiration date may be changed at any time. |
| C | Expiration date and factor may not be changed before the trigger date, but may be changed after the trigger date. |
| D | Expiration date may be changed at any time. Carrier may change its factor only prior to the trigger date. |
| E | Expiration date may be changed at any time. Carrier may change its factor only after the trigger date. |
| F | Expiration date may not be changed before the before the trigger date. It may be changed after the trigger date. |
| G | Expiration date may be changed at any time. Carrier may change its factor only on number of days advance notice as indicated in the transaction. |
| H | Expiration date may be changed only after the number of days advance notice indicated in the transaction |
| I | Expiration date may be changed only after 30 days advance notice. |
| L | Date can be changed at any time. The through-rate can be changed at any time by the proposer. |