Enforcement Rules of the Fisheries Act Article 23

Any fishing right holder who intends to waive the fishing right shall apply to the original issuing authority for cancellation. If other rights are registered in relation to the said fishing right, a written approval shall be submitted.
中文原文 漁業法施行細則第23條
拋棄漁業權者,應向原核准機關辦理註銷登記,該漁業權有他項權利登記者,應檢附其同意文件。

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