Canon 1364 §1 An apostate from the faith, a heretic or a schismatic incurs a latae sententiae excommunication, without prejudice to the provision of Can. 194 §1, n. 2; a cleric, moreover, may be punished with the penalties mentioned in Can. 1336 §1, nn. 1, 2 and 3.
Canon 1367 One who throws away the consecrated species or, for a sacrilegious purpose, takes them away or keeps them, incurs a latae sententiae excommunication reserved to the Apostolic See; a cleric, moreover, may be punished with some other penalty, not excluding dismissal from the clerical state.
Canon 1370 §1 A person who uses physical force against the Roman Pontiff incurs a latae sententiae excommunication reserved to the Apostolic See; if the offender is a cleric, another penalty, not excluding dismissal from the clerical state, may be added according to the gravity of the crime.
Canon 1378 §1 A priest who acts against the prescription of Can. 977 incurs a latae sententiae excommunication reserved to the Apostolic See.
§2 The following incur a latae sententiae interdict or, if a cleric, a latae sententiae suspension:
1° a person who, not being an ordained priest, attempts to celebrate Mass
2° a person who, apart from the case mentioned in §1, thoughunable to give valid sacramental absolution, attempts to do so, or hears a sacramental confession.
§3 In the cases mentioned in §2, other penalties, not excluding excommunication, can be added, according to the gravity of the offence.
Canon 1382 Both the Bishop who, without a pontifical mandate, consecrates a person a Bishop, and the one who receives the consecration from him, incur a latae sententiae excommunication reserved to the Apostolic See.
Canon 1388 §1 A confessor who directly violates the sacramental seal, incurs a latae sententiae excommunication reserved to the Apostolic See; he who does so only indirectly is to be punished according to the gravity of the offence.
§2 Interpreters and the others mentioned in can. 983 §2, who violate the secret, are to be punished with a just penalty, not excluding excommunication.
Canon 1398 A person who actually procures an abortion incurs a latae sententiae excommunication.
Canon 1329 §1 Where a number of persons conspire together to commit an offence, and accomplices are not expressly mentioned in the law or precept, if ferendae sententiae penalties were constituted for the principal offender, then the others are subject to the same penalties or to other penalties of the same or a lesser gravity.
§2 In the case of a latae sententiae penalty attached to an offence, accomplices, even though not mentioned in the law or precept, incur the same penalty if, without their assistance, the crime would not have been committed, and if the penalty is of such a nature as to be able to affect them; otherwise, they can be punished with ferendae sententiae penalties.
Canons 1323 and 1324 contain mitigating factors.