Canonum De Lex Ecclesium
Canons of Ecclesiastical Law

one heaven iconV.   Sacraments

5.1 Sacraments

Article 137 - Celebrant

Canon 4370 (link)

A Celebrant is a person validly authorized to administer and confer one or more Sacraments of Heaven either through Extraordinary Conditions or Ordinary Conditions:

(i) Only persons properly ordained as a Minister or invested into office holding Magisterium or Visium in accordance with these Canons possesses the powers and authority to confer and administer these sacraments under Extraordinary Conditions; and

(ii) Only persons properly invested into office holding Administratum, Officium or Imperium or in accordance with these Canons possesses the powers and authority to confer and administer these sacraments under Ordinary Conditions.

Canon 4371 (link)

A person who has been excommunicated from their authority is no longer a Celebrant.