Can. 179
© Libreria Editrice Vaticana Source: vatican.va
Episcopi, quibus eparchia nomine proprio regenda concredita non est, quodcumque aliud munus in Ecclesia exercent vel exercuerunt, Episcopi titulares vocantur.
Wording unchanged since the Code took effect in 1991.
Read the whole title TITULUS VIIDe Eparchiis et de Episcopis 177–310