Enforcement Act of the Part of Obligations of the Civil Code Article 22
In a contract of redemption constituted before the coming into force of the Part of Obligations of the Civil Code, if the redemption period is fixed, such period shall be followed. But if the remainder of the period, reckoning from the date of the coming into force of the Part of Obligations of the Civil Code is longer than that provided by Article 380 of the Civil Code, provision of Article 380 of the Civil Code shall be applied as from the date of their coming into force. In the event where no definite period is provided by the contract of redemption, the period shall not exceed five years beginning from the date of the coming into force of the Part of Obligations of the Civil Code.