Christus Dominus §26

²⁶ To the extent that the good of souls demands, the diocesan bishop should not hesitate to ask the competent authority for one or more auxiliaries who will be appointed for the diocese without the right of succession. If there is no provision for it in the letter of nomination, the diocesan bishop is to appoint his auxiliary or auxiliaries as vicar generals or at least as episcopal vicars. They shall be dependent upon his authority only and he may wish to consult them in examining questions of major importance, especially of a pastoral nature. Unless competent authority has otherwise determined, the powers and faculties which auxiliary bishops have by law do not cease when the office of the diocesan bishop comes to an end. It is also desirable that when the See is vacant the office of ruling the diocese-unless some serious reasons persuade otherwise-should be committed to the auxiliary bishop or, when there are more than one, to one of the auxiliaries. A coadjutor bishop, appointed with the right of succession, must always be named vicar general by the diocesan bishop. In particular cases the competent authority can grant him even more extensive faculties. In order to provide for the greatest possible present and future good of the diocese, the diocesan bishop and his coadjutor should not fail to consult with each other on matters of great importance. 2. The diocesan curia and commissions