Each regularly scheduled liturgy has a Head Usher who is responsible for coordinating the usher service at that Mass. The Head Usher is encouraged to designate a minimum of two Assistant Head Ushers to provide support for the Mass.
Assistant Head Ushers also serve as Aisle Ushers but should be able to step in and serve as Head Usher if the scheduled Head Usher is unable to attend that Mass.
Thirteen ushers are required for each Mass: 12 Aisle Ushers plus one Head Usher.
Ushers serve a number of important functions to enhance each liturgical celebration for the faith community. These include: