§1. A chaplain must be provided with all the faculties which proper pastoral care requires. In addition to those which are granted by particular law or special delegation, a chaplain possesses by virtue of office the faculty of hearing the confessions of the faithful entrusted to his care, of preaching the word of God to them, of administering Viaticum and the anointing of the sick, and of conferring the sacrament of confirmation on those who are in danger of death.
§2. In hospitals, prisons, and on sea journeys, a chaplain, moreover, has the faculty, to be exercised only in those places, of absolving from latae sententiae censures which are neither reserved nor declared, without prejudice, however, to the prescript of can. 976.
Source: Code of Canon Law (Vatican.va)