Indoor Air Quality Management Act Article 20

Those that are ordered to make improvements within a prescribed period of time pursuant to this Act, shall have a maximum of 90 days' to make improvements. Those unable to make improvements by the improvement deadline due to natural disaster or other force majeure shall, within 15 days after the reason ceases to exist, apply to the competent authority for the approval of an improvement deadline by submitting a written explanation of cause and relevant information; the competent authority shall determine an improvement deadline based on the actual circumstances.Owners, managers, or users of officially announced premises that are unable to make improvements by the competent authority determined deadline in the foregoing paragraph may, within 30 days after receiving notification of the improvement deadline, submit specific improvement plans to the competent authority in order to apply for an extension of the improvement deadline; the competent authority shall approve the improvement deadline based on actual circumstances; the maximum extension may not exceed six months; the competent authority may terminate promptly the improvement deadline of those that are proven after investigation to have failed to carry out implementation strictly according to their submitted improvement plan and regard them as having failed to make improvements within the deadline.
中文原文 室內空氣品質管理法第20條
依本法命其限期改善者,其改善期間,以九十日為限。
因天災或其他不可抗力事由,致未能於改善期限內完成改善者,應於其事由消滅後十五日內,以書面敘明事由,檢具相關資料,向主管機關申請延長改善期限,主管機關應依實際狀況核定改善期限。
公告場所所有人、管理人或使用人未能於前項主管機關所定限期內改善者,得於接獲限期改善之日起三十日內,提出具體改善計畫,向主管機關申請延長改善期限,主管機關應依實際狀況核定改善期限,最長不得超過六個月;未切實依其所提之具體改善計畫執行,經查證屬實者,主管機關得立即終止其改善期限,並視為屆期未改善。

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