10 U.S.C. § 953

For offenders who were at the time of commission of their offenses subject to his authority and who merit such action, the Secretary concerned shall establish— (1) a system for the remission or suspension of the unexecuted part of the sentences of selected offenders; (2) a system for the restoration to duty of such offenders who have had the unexecuted part of their sentences remitted or suspended and who have not been discharged; and (3) a system for the enlistment of such offenders who have had the unexecuted part of their sentences remitted and who have been discharged.