Maritime Act Article 8

No transfer of the ownership or a share of the ownership of the ship shall be valid unless done in writing and in conformity with the following conditions:1. here the transfer makes in the Republic of China, Taiwan, shall apply to the local shipping administrative authority of the said transfer or the ship is situated for their certification and seal.2. Where the transfer makes in a country other than the Republic of China, Taiwan, shall apply to the consular or representative office of the Republic of China, Taiwan, or any other institute empowered by the Ministry of Foreign Affairs located in that country for their certification and seal.
中文原文 海商法第8條
船舶所有權或應有部分之讓與,非作成書面並依下列之規定,不生效力:
一、在中華民國,應申請讓與地或船舶所在地航政主管機關蓋印證明。
二、在外國,應申請中華民國駐外使領館、代表處或其他外交部授權機構蓋印證明。

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