Enforcement Act of the Part of Rights In Rem of the Civil Code Article 2
If rights in rem as set out in the Rights in Rem part of the Civil Code existed before the coming into force of the Rights in Rem part, the effect of the rights shall accord with the Rights in Rem part beginning from the date it come into force.
中文原文 民法物權編施行法第2條
民法物權編所定之物權，在施行前發生者，其效力自施行之日起，依民法物權編之規定。