Can. 1257

§1. All temporal goods which belong to the universal Church, the Apostolic See, or other public juridic persons in the Church are ecclesiastical goods and are governed by the following canons and their own statutes.

§2. The temporal goods of a private juridic person are governed by its own statutes but not by these canons unless other provision is expressly made.

Read the whole title BOOK VThe Temporal Goods of the Church 1254–1258