Canon 395

Can. 395 §1. Even if a diocesan bishop has a coadjutor or auxiliary, he is bound by the law of personal residence in the diocese.

Can. 395 §2. Apart from ad limina visits, councils, synods of bishops, conferences of bishops which he must attend, or some other duty legitimately entrusted to him, he can be absent from his diocese for a reasonable cause but not beyond a month, whether continuous or interrupted, and provided that he makes provision so that the diocese will suffer no detriment from his absence.

Can. 395 §3. He is not to be absent from the diocese on Christmas, during Holy Week, and on Easter, Pentecost, and the Feast of the Body and Blood of Christ, except for a grave and urgent cause.

Can. 395 §4. If a bishop has been illegitimately absent from the diocese for more than six months, the metropolitan is to inform the Apostolic See of his absence; if it concerns the metropolitan, the senior suffragan is to do so.