Regulations for Tuna Longline Fishing Vessels Proceeding to the Indian Ocean for Fishing Operation Article 19

Fishing gear(s) of any tuna longline fishing vessel shall be equipped with signal flags, radar reflector buoys, or other similar devices so as to identify position(s) and fishing area(s).The devices as referred to in the preceding paragraph shall be marked with the same CT number or IRCS as the tuna longline fishing vessel concerned.
中文原文 鮪延繩釣漁船赴印度洋作業管理辦法第19條
鮪延繩釣漁船之漁具應裝設用以確認其作業位置及範圍之旗幟、雷達反射浮標或其他類似裝置。
前項裝置,應標識漁船統一編號或國際識別編號。

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