CCQ-1991 - Civil Code of Québec

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397. A spouse who enters into a contract for the current needs of the family also binds the other spouse for the whole, if they are not separated from bed and board.
However, the non-contracting spouse is not liable for the debt if he or she had previously informed the other contracting party of his or her unwillingness to be bound.
1991, c. 64, a. 397.