Canon 560

1. In accordance with the norm of the statutes, the major superior of a society can issue dimissorial letters for holy orders

to be conferred on perpetually incorporated members; these letters are to be sent to the bishop mentioned in can. 537, 2.

2. A perpetually incorporated member is enrolled as a cleric in

the society by diaconal ordination or, in the case of a cleric

already enrolled in an eparchy, by perpetual incorporation.