General period for negative prescription

Whoever, is bound to another by an obligation to perform, or to do something, may stand relieved of the obligation, if its performance is not demanded for a period of 20 years, and the obligant stands in good faith, at the end of the prescription period, or when the performance is not demanded for a period of 30 years, regardless of good faith or bad faith, except where special prescriptions are provided in law. § Sole paragraph - Good faith, in the case of negative prescription, consists in the ignorance of the obligation. This ignorance is not presumed in case of persons who originally contracted the obligation.