Canon 403

1. With due regard for the right and obligation to preserve

everywhere their own rite, lay persons have the right to participate actively in the liturgical celebrations of any Church sui

iuris whatsoever, according to the norms of the liturgical books.

2. If the necessity of the Church and genuine advantage so recommend, and when sacred ministers are lacking, certain functions

of the sacred ministers may be committed to lay persons, according to the norms of law.