Regulations for Recreational Fishery Article 6

A recreational fishing vessel under 10 gross tonnage may be built provided that replacement tonnage of 3 sampans or fishing rafts has been obtained.
中文原文 娛樂漁業管理辦法第6條
舢舨或漁筏得以三艘汰建總噸位未滿十之娛樂漁業漁船一艘。

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