Act for Implementation of J.Y. Interpretation No. 748 Article 5
Person of the same sex may not form a union as stated in Article 2 with any of the following relatives:(1)A lineal relative by blood or by marriage;(2)A collateral relative by blood within the fourth degree of kinship. The limit to form a union shall not be applicable to persons of collateral relative within the fourth degree of kinship by adoption.(3)A collateral relative by marriage within the fifth degree of kinship of different rank.The union prohibitions between lineal relatives by marriage provided in the preceding paragraph shall continue to apply even after the dissolution of relations between relatives by marriage.The union prohibitions with the lineal relative by blood or by marriage set forth in the first paragraph hereof shall be applicable to persons of lineal relative by adoption after ending of the adoption relationship.