Enforcement Act of the Code of Civil Procedure Article 12

Where the payment order is finalized after the promulgation and enforcement of the Demand Proceeding Part of the Code of Civil Procedure amended on June 15th, 2015, are implemented, the amended Code shall apply; where the payment order is finalized before the implementation, the debtor may still initiate a rehearing action in accordance with the second paragraph of Article 521 of the pre-amended Code of Civil Procedure.In cases as provided in the preceding paragraph and the latter paragraph, where the debtor finds that the evidence provided by the creditor in accordance with the Demand Proceeding is forged or altered or where the debtor provides evidence that may gain a more favorable judgment, the debtor may still initiate a rehearing action with the court that has jurisdiction over the payment order. The original application for issuing a payment order shall be deemed as initiating an action.The rehearing action referred to in the preceding paragraph shall be initiated within two years after promulgating and enforcing the Demand Proceeding Part of the Code of Civil Procedure. It shall not be subject to the provisions of Article 500 of the same Code. The said action may be initiated after the promulgation and enforcement of this Act and within two years after a person who has limited legal capacity or is legally incompetent comes to adulthood.The provisions of the preceding two paragraphs shall not apply to the debt that the debtor has already paid.
中文原文 民事訴訟法施行法第12條
支付命令於中華民國一百零四年六月十五日修正之民事訴訟法督促程序編施行後確定者,適用修正後之規定;於施行前確定者,債務人仍得依修正前民事訴訟法第五百二十一條第二項規定提起再審之訴。
前項後段情形,債務人有債權人於督促程序所提出之證物係偽造或變造之情形,或債務人提出可受較有利益裁判之證物者,仍得向支付命令管轄法院提起再審之訴,並以原支付命令之聲請,視為起訴。
前項再審之訴應於民事訴訟法督促程序編修正施行後二年內為之,不受民事訴訟法第五百條之限制。
本施行法施行起至無行為能力人或限制行為能力人成年後二年內均得為之。
前二項規定,債務人就已經清償之債務範圍,不適用之。

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