527. The pastor can dispense as follows: (a) from the general law concerning feasts of obligation and from the laws of fast and abstinence. The dispensation can be granted either to his own subjects or to strangers, but only for a just reason, in individual instances and for particular individuals or families. The bishop may dispense the whole diocese, but the pastor cannot dispense the whole parish (Canon 1245). (b) When there is danger of death, the pastor can dispense from matrimonial impediments as provided in Canon 1044.
528. Religious superiors, local superiors included, can dispense in the laws and statutes of their own institutes, except where this is forbidden. In clerical and exempt institutes the superiors can also dispense the subjects and all who live day and night in the religious house (such as students, guests and servants) from the general laws of the Church, as follows:
(a) The higher superiors, such as abbots, generals, provincials, have the same authority in this respect as the bishop has with reference to his own diocese. Hence, they can dispense in all ecclesiastical laws in which the Pope dispenses, when there is doubt of fact, or recourse to the Holy See is difficult (Canons 15, 81); in case of necessity, they can dispense from the laws of abstinence individuals, or an entire convent, or an entire province (Canon 1245, Sec. 2); they can dispense in irregularities as provided in Canon 990, Sec. 1.
(b) The other superiors, local superiors included, can dispense their subjects from the laws of fast and abstinence in the same manner as pastors are able to dispense their parishioners (Canon 1245, Sec. 3), Religious superiors are also able to dispense the private non-reserved vows of their subjects (Canons 1313, Sec. 2, 1314).
529. Confessors, when delegated, can dispense as follows: (a) with ordinary faculties, from impediments, irregularities and penalties, as provided in Canons 1044, 1045, 985, 990, 2290; (b) with privileged faculties, from simple vows not reserved to the Pope, if no injury is done to the rights of a third party; and from occult irregularity produced by delinquency, that from homicide excepted. (In the internal sacramental forum the confessor can dispense from the impediments indicated in Canons 1043-1045.)
530. Priests that assist at marriages can dispense from impediments as provided in Canons 1043-1045.
531. The manner of seeking dispensations is as follows: (a) for the usual dispensations (e.g., those from fast, abstinence, observance of feasts, and the vows that may be dispensed by confessors) no particular procedure is required; (b) for the dispensation that must be sought from the Holy See, if the matter belongs to the internal forum, the petition is sent to the Sacred Penitentiary through the Confessor or Ordinary; if it belongs to the external forum, it is sent to the competent Congregation through the parish priest or Ordinary. Dispensation from public marriage impediments must be sent through the Ordinary.
532. The manner of preparing a petition for dispensation is as follows: (a) the name of the penitent must not be given in petitions to the Sacred Penitentiary, but the name and address of the party to whom the reply is to be sent should be clearly given; (b) the petition should be sent by letter. It may be written in any language, and should state the case with its circumstances, the favor that is asked, and the true reason for asking it.
533. A dispensation is invalidated as follows: (a) through defect of the petition, if it contains a substantial error, and the dispensation is given on condition of substantial truth (Canon 40); (b) through defect of the petitioner, if he is incapable of receiving the favor asked (Canon 46); (c) through defect of the dispensation, as when the requisite signature or seal is omitted; (d) through defect of the dispenser, as when he lacks jurisdiction, or grants without a just and proportionate reason a dispensation for which he has only delegated power (Canon 84).
534. If a dispensation is unjustly refused, note the following: (a) ordinarily, the subject has not the right to hold himself free from the law; (b) in extraordinary circumstances, when the law ceases, or no longer obliges (see 487 sqq.), the subject is free.