§1. In addition to the Roman Pontiff, by the title of ordinary are understood in the law diocesan bishops and others who, even if only temporarily, are placed over some particular church or a community equivalent to it according to the norm of can. 368 as well as those who possess general ordinary executive power in them, namely, vicars general and episcopal vicars; likewise, for their own members, major superiors of clerical religious institutes of pontifical right and of clerical societies of apostolic life of pontifical right who at least possess ordinary executive power.
§2. By the title of local ordinary are understood all those mentioned in §1 except the superiors of religious institutes and of societies of apostolic life.
§3. Within the context of executive power, those things which in the canons are attributed by name to the diocesan bishop are understood to belong only to a diocesan bishop and to the others made equivalent to him in can. 381, §2, excluding the vicar general and episcopal vicar except by special mandate.
Source: Code of Canon Law (Vatican.va)