Maximum technical capacity : Theoretical maximum physical quantity of natural gas that can be carried at one contractual point of the network during one gasday. It does not take into account particular conditions such as maintenance, very low or high temperature... Such capacity does not refer to firm and/or interruptible capacity.

Minimum planned effective capacity : Level of technical capacity planned taking into account the worst scenario of constraints for the network.

Probable planned effective capacity : Level of technical capacity planned taking into account the scenario of probable constraints for the network.

Restriction rate on firm capacity : Reduction rate applied to the firm portion of the shippers' operational capacity.

Restriction rate on interruptible capacity : Reduction rate applied to the interruptible portion of the shippers operational capacity. This rate is calculated for each type of capacity product: annual, quarterly, monthly and daily capacities.

Probable restriction rate planned on firm capacity : Planned reduction rate applied to the firm portion of the shippers' operational capacity taking into account the scenario of probable constraints for the network.

Maximum restriction rate planned on firm capacity : Planned reduction rate applied to the firm portion of the shippers' operational capacity taking into account the worst scenario of constraints for the network.