Enforcement Law for Part IV, Family Law of the Civil Code Article 6
A person who got married before the coming into force of the PART of FAMILY of the CIVIL CODE, may not only apply to the provisions of Article 1004 of the CIVIL CODE, but may also adopt the statutory regime [of the matrimonial property] provided in the PART of FAMILY of the CIVIL CODE as his contractual regime.The provisions of Article 1010 of the revised CIVIL CODE shall also apply to the persons who got married after the coming into force and before the revision of the PART of FAMILY of the CIVIL CODE. The period set forth in the Subparagraph 5 of the said article expires if it has expired before the revision; if it has not expired, the period shall be reckoned with both the time elapsed before and after the revision.