Canonum De Ius Positivum
Canons of Positive Law
VII. Law
7.4 Authority of Law
Article 267 - Officium
Canon 3035 (link)
All Authority of Officium is vested in the Covenant of One Heaven also known as Pactum De Singularis Caelum and associated valid officials in accordance with the will of the Divine Creator and these Canons.