19.1. An inmate who receives an additional sentence is not eligible for parole(a) until the day on which the inmate has served any remaining period of ineligibility in relation to the sentence the inmate was serving and one-third of the additional sentence, commencing on the day on which the additional sentence is imposed, if it is consecutive and imposed under the Criminal Code (Revised Statutes of Canada, 1985, chapter C-46) or another federal statute; or
(b) until the day on which the inmate has served one-third of the sentence that includes the additional sentence as provided in section 25, in other cases.