Act for Implementation of J.Y. Interpretation No. 748 Article 8
A union as stated in Article 2 is void if any one of the following conditions is met:(1) Where it does not conform to the formalities provided by Article 4,(2) Where it violates the union prohibition as provided in Article 5, or(3) Where it violates the union prohibition as provided in Paragraph 1 or Paragraph 2 of Article 7.Marriage violating Paragraph 3 of Article 7 is void.The proviso for Subparagraph 3 of Article 988 and Article 988-1 of Civil Code shall apply mutatis mutandis to Subparagraph 3, Paragraph 1 and Paragraph 2 of this Article.