Enforcement Act of the Part of Rights In Rem of the Civil Code Article 8

A person who possesses a real property before the coming into force of the Rights in Rem part of the Civil Code, and who fulfils the conditions given in Article 769 or 770, may claim to be registered as the owner of the real property from the date of the coming into force of the Rights in Rem part.
中文原文 民法物權編施行法第8條
民法物權編施行前占有不動產而具備民法第七百六十九條或第七百七十條之條件者,自施行之日起,得請求登記為所有人。

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