Enforcement Rules of Veterinary Drugs Control Act Article 9

The veterinary drug manufacturer, who is allowed to modify the substandard veterinary drug before a set deadline in accordance with Article 29 of the Act, shall notify the municipal or country (city) competent authority to send personnel to supervise the process 7 days prior to the modification.
中文原文 動物用藥品管理法施行細則第9條
依本法第二十九條規定限期改製動物用劣藥者,製造廠商應於改製七日前通知直轄巿或縣(巿)主管機關派員監督改製。

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