Canon 377. §1 The Supreme Pontiff freely appoints Bishops or confirms those lawfully elected.

§2 At least every three years, the Bishops of an ecclesiastical province or, if circumstances suggest it, of an Episcopal Conference, are to draw up, by common accord and in secret, a list of priests, even of members of institutes of consecrated life, who are suitable for the episcopate; they are to send this list to the Apostolic See. This is without prejudice to the right of every Bishop individually to make known to the Apostolic See the names of priests whom he thinks are worthy and suitable for the episcopal office.

§3 Unless it has been lawfully prescribed otherwise, for the appointment of a diocesan Bishop or a coadjutor Bishop, a ternus, as it is called, is to be proposed to the Apostolic See. In the preparation of this list, it is the responsibility of the papal
Legate to seek individually the suggestions of the Metropolitan and of the Suffragans of the province to which the diocese in question belongs or with which it is joined in some grouping, as well as the suggestions of the president of the Episcopal
Conference. The papal Legate is, moreover, to hear the views of some members of the college of consultors and of the cathedral chapter. If he judges it expedient, he is also to seek individually, and in secret, the opinions of other clerics, both secular and religious, and of lay persons of outstanding wisdom. He is then to send these suggestions, together with his own opinion, to the Apostolic See.

§4 Unless it has been lawfully provided otherwise, the diocesan Bishop who judges that his diocese requires an auxiliary Bishop, is to propose to the Apostolic See a list of the names of at least three priests suitable for this office .

§5 For the future, no rights or privileges of election, appointment, presentation or designation of Bishops are conceded to civil authorities.