Title XI: Of Delicts against the Faith and Unity of the Church

§ 1. All apostates from the Christian faith and all and singular heretics or schismatics:

1° Incur excommunication by the fact itself.

2° Unless, having been warned, they become wise again, let them be deprived of benefice, dignity, pension, office, or other function, if they have any in the Church, let them be declared infamous, and clerics, after repeated warning, are to be deposed.

3° If they have given their name to a non-Catholic sect or publicly adhered to it, by the fact itself they are infamous, and, with the prescription of can. 188, n. 4 remaining firm, clerics, after warning has been sent in vain, are to be degraded.

§ 2. Absolution from the excommunication of which in Sec. 1, to be imparted in the forum of conscience, is reserved in a special manner to the Apostolic See. If however the delict of apostasy, heresy, or schism has in any way been brought to the external forum of the local Ordinary, even through voluntary confession, the same Ordinary, but not the Vicar General without a special mandate, can by his ordinary authority absolve in the external forum one coming to his senses, after juridically performed abjuration and other things to be observed by law having been observed; one so absolved can then be absolved from the sin by any confessor in the forum of conscience. But abjuration is held to have been juridically performed when it is made before the local Ordinary himself or his delegate and at least two witnesses.

One suspected of heresy, who, having been warned, does not remove the cause of suspicion, is to be prohibited from legitimate acts, and a cleric moreover, after warning has been repeated uselessly, is to be suspended from divine things; but if within six completed months from the contracted penalty the one suspected of heresy has not amended himself, let him be regarded as a heretic, subject to the penalties of heretics.

One who in any way spontaneously and knowingly assists the propagation of heresy, or who communicates in divine things with heretics against the prescription of can. 1258, is suspected of heresy.

Those pertinaciously teaching or defending, whether publicly or privately, a doctrine which indeed was condemned by the Apostolic See or by a General Council, but not as formally heretical, are to be barred from the ministry of preaching the word of God or hearing sacramental confessions and from any teaching function, without prejudice to other penalties which the sentence of condemnation may perhaps have established, or which the Ordinary, after warning, shall have judged necessary for repairing scandal.

§ 1. Editors of books of apostates, heretics, and schismatics which defend apostasy, heresy, or schism, when the work has been made public, incur by the fact itself excommunication reserved in a special manner to the Apostolic See; likewise those defending the same books or others prohibited by name through apostolic letters, or knowingly reading or retaining them without due permission.

§ 2. Authors and editors who without due permission take care that books of the sacred Scriptures or their annotations or commentaries be printed fall by the fact itself into excommunication reserved to no one.

§ 1. Catholics are subject to latae sententiae excommunication reserved to the Ordinary:

1° Who enter marriage before a non-Catholic minister against the prescription of can. 1063, Sec. 1.

2° Who are joined in marriage with an explicit or implicit pact that all or some offspring be educated outside the Catholic Church.

3° Who knowingly presume to offer their children to be baptized by non-Catholic ministers.

4° Parents or those holding the place of parents who knowingly hand over children to be educated or instructed in a non-Catholic religion.

§ 2. Those of whom in Sec. 1, nn. 2-4, are moreover suspected of heresy.