Specifies under what conditions the buyer and seller should be excused of their delivery obligations.
1 = Firm
Never excused of delivery obligations.
2 = Interruptable or non-firm
Excused when interrupted for any reason or for no reason without liability.
3 = Force majeure
Excused when prevented by force majeure.
4 = System firm
Must be supplied from the owned or controlled generation of pre-existing purchased power assets of the system specified.
5 = Unit firm
Must be supplied from the generation assset specified.