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.
中文原文 司法院釋字第七四八號解釋施行法第8條
第二條關係有下列情形之一者,無效:
一、不具備第四條之方式。
二、違反第五條之規定。
三、違反前條第一項或第二項之規定。
違反前條第三項之規定者,其結婚無效。
民法第九百八十八條第三款但書及第九百八十八條之一之規定,於第一項第三款及前項情形準用之。

English translation for reference only; the Chinese text prevails. Not legal advice.