Enforcement Act of the Part of Obligations of the Civil Code Article 14
The provisions of the first or the second paragraph of Articles 217 and Article 218 of the Civil Code shall also apply mutatis mutandis to obligations to make compensation for the injury done before the coming into force of the Part of Obligations of the Civil Code.The provisions of the revised third paragraph of Article 217 of the Civil Code shall also apply to the situation when the agent of the injured person or the person performing the obligation for the injured person has negligently contributed to the injury before the coming into force of the revision of the Part of Obligations of the Civil Code.