Can. 116

§1. Public juridic persons are aggregates of persons (universitates personarum) or of things (universitates rerum) which are constituted by competent ecclesiastical authority so that, within the purposes set out for them, they fulfill in the name of the Church, according to the norm of the prescripts of the law, the proper function entrusted to them in view of the public good; other juridic persons are private.

§2. Public juridic persons are given this personality either by the law itself or by a special decree of competent authority expressly granting it. Private juridic persons are given this personality only through a special decree of competent authority expressly granting it.