1693. Where an obligation can no longer be performed by the debtor, by reason of superior force and before he is in default, the debtor is released from the obligation; he is also released from it, even though he was in default, where the creditor could not, in any case, have benefited from the performance of the obligation by reason of that superior force, unless, in either case, the debtor has expressly assumed the risk of superior force.
The burden of proof of superior force is on the debtor.
1991, c. 64, a. 1693; I.N. 2014-05-01.