166. (1) Where the Board conducts a review of the case of an offender by way of hearing, it shall maintain a record of the proceedings until the expiration of the offender's sentence according to law.

    (2) Where the Board renders a decision with respect to an offender following a review of the offender's case, it shall

maintain a copy of the decision and the reasons for the decision until the expiration of the offender's sentence; and

provide the offender with a copy of the decision, including the reasons for the decision, within 15 days after the day on which it was made.