Canon 517. §1 Where circumstances so require, the pastoral care of a parish, or of a number of parishes together, can be entrusted to several priests jointly, but with the stipulation that one of the priests is to be the moderator of the pastoral care to be exercised. This moderator is to direct the joint action and to be responsible for it to the Bishop.

§2 If, because of a shortage of priests, the diocesan Bishop has judged that a deacon, or some other person who is not a priest, or a community of persons, should be entrusted with a share in the exercise of the pastoral care of a parish, he is to appoint some priest who, with the powers and faculties of a parish priest, will direct the pastoral care.

§1. Ubi adiuncta id requirant, paroeciae aut diversarum simul paroeciarum cura pastoralis committi potest pluribus in solidum sacerdotibus, ea tamen lege, ut eorundem unus curae pastoralis exercendae sit moderator, qui nempe actionem coniunctam dirigat atque de eadem coram Episcopo respondeat.

§2. Si ob sacerdotum penuriam Episcopus dioecesanus aestimaverit participationem in exercitio curae pastoralis paroeciae concredendam esse diacono aliive personae sacerdotali charactere non insignitae aut personarum communitati, sacerdotem constituat aliquem qui, potestatibus et facultatibus parochi instructus, curam pastoralem moderetur.