Referendum Act Article 15

After a referendum proposal submitted by the Legislative Yuan in accordance with the Constitution has been announced for six months, the Legislative Yuan shall refer the proposal to the competent authority for implementation within ten days.If the Legislative Yuan deems it necessary to hold a referendum on any matter stipulated in Subparagraph 3 of Paragraph 2 of Article 2, it may, after the main text and the statement of reasons are adopted in a plenary session, refer the proposal to the competent authority for implementation within ten days. The provisions of Articles 9 through 13, Subparagraph 3 of Paragraph 1 of Article 17, and Article 19 shall not apply.If the plenary session of the Legislative Yuan rejects a proposal submitted by the Legislative Yuan, the Legislative Yuan may not resubmit a proposal on the same matter within two years from the date of rejection.
中文原文 公民投票法第15條
立法院依憲法之規定提出之複決案,經公告半年後,應於十日內交由主管機關辦理公民投票。
立法院對於第二條第二項第三款之事項,認有提出公民投票之必要者,得附具主文、理由書,經立法院院會通過後十日內,交由主管機關辦理公民投票,不適用第九條至第十三條、第十七條第一項第三款及第十九條規定。
立法院之提案經院會否決者,自該否決之日起二年內,不得就該事項重行提出。

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