Act on the Prevention and Control of Infectious Animal Diseases Article 18

When animal health inspection authorities suspect a fast spread of an infectious animal disease, a report shall be made immediately to the higher authorities concerned. The neighboring authorities and competent authorities of special municipalities or counties (cities) taking charge of managing the place of assembling and distributing of animals shall be informed.
中文原文 動物傳染病防治條例第18條
動物防疫機關於動物傳染病發生後有迅速蔓延之虞時,應迅即陳報其上級主管機關,並通知鄰近及與動物之集散有關之直轄市或縣(市)政府。

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