(a) All current and future adult inmates in the custody of the Commissioner of Corrections, except those committed pursuant to article four, chapter twenty-five of this code, shall be granted commutation from their sentences for good conduct in accordance with this section.
(b) The commutation of sentence, known as "good time", shall be deducted from the maximum term of indeterminate sentences or from the fixed term of determinate sentences.
(c) Each inmate committed to the custody of the Commissioner of Corrections and incarcerated in a correctional facility pursuant to that commitment shall be granted one day good time for each day he or she is incarcerated, including any and all days in jail awaiting sentence which are credited by the sentencing court to his or her sentence pursuant to section twenty-four, article eleven, chapter sixty-one of this code or for any other reason relating to the commitment. An inmate may not be granted any good time for time served either on parole or bond or in any other status when he or she is not physically incarcerated.
(d) An inmate sentenced to serve a life sentence is not eligible to earn or receive any good time pursuant to this section.
(e) An inmate under two or more consecutive sentences shall be allowed good time as if the several sentences, when the maximum terms of the consecutive sentences are added together, were all one sentence.
(f) The Commissioner of Corrections shall promulgate disciplinary rules. The rules shall describe acts that inmates are prohibited from committing, procedures for charging individual inmates for violation of the rules and for determining the guilt or innocence of inmates charged with the violations and the sanctions which may be imposed for the violations. A copy of the rules shall be given to each inmate. For each violation, by a sanctioned inmate, any part or all of the good time which has been granted to the inmate pursuant to this section may be forfeited and revoked by the warden or superintendent of the institution in which the violation occurred. The warden or superintendent, when appropriate and with approval of the commissioner, may restore any forfeited good time.
(g) Each inmate, upon his or her commitment to and being placed into the custody of the Commissioner of Corrections, or upon his or her return to custody as the result of violation of parole pursuant to section nineteen, article twelve, chapter sixty-two of this code, shall be given a statement setting forth the term or length of his or her sentence or sentences and the time of his or her minimum discharge computed according to this section.
(h) Each inmate shall be given a revision of the statement described in subsection (g) of this section if and when any part or all of the good time has been forfeited and revoked or restored pursuant to subsection (f) of this section, by which the time of his or her earliest discharge is changed.
(i) The Commissioner of Corrections may, with the approval of the Governor, allow extra good time for inmates who perform exceptional work or service.
(j) In order to ensure equitable good time for all current and future inmates in the custody of the Commissioner of Corrections, except as to those persons committed pursuant to article four, chapter twenty-five of this code, all good time shall be computed according to this section and all previous computations of good time under prior statutes or rules are void. All inmates who have previously forfeited good time are hereby restored to good time computed according to this section and all inmates will receive a new discharge date computed according to this section. All inmates that have been awarded overtime good time or extra good time pursuant to sections twenty-seven-a and twenty-seven-b of this article which were repealed simultaneously with the amendment to this section during the regular session of the Legislature in the year 1984 shall receive that good time in addition to the good time computed according to this section.
(k) There shall be no grants or accumulations of good time or credit to any current or future inmate serving a sentence in the custody of the Division of Corrections except in the manner provided in this section.
(l) Prior to the calculated discharge date of an inmate serving a sentence for a felony crime of violence against the person, a felony offense where the victim was a minor child or a felony offense involving the use of a firearm, one year shall be deducted from the inmate's accumulated good time to provide for one year of mandatory post-release supervision following the first instance in which the inmate reaches his or her calculated discharge date. All inmates released pursuant to this subsection shall be subject to electronic or GPS monitoring for the entire period of supervision. The provisions of this subsection are applicable to offenses committed on or after July 1, 2013.
(m) Upon sentencing of an inmate for an offense not referenced in subsection (l) of this section, the court may order that one hundred eighty days of the sentence, or some lesser period, be served through post-release mandatory supervision if the court determines supervision is appropriate and in the best interest of justice, rehabilitation and public safety. All inmates released pursuant to this subsection shall be subject to electronic or GPS monitoring for the entire period of supervision. The provisions of this subsection are applicable to offenses committed on or after July 1, 2013.
(n) The Commissioner of Corrections shall adopt policies and procedures to implement the mandatory supervision provided for in subsections (l) and (m) of this section, which may include terms, conditions and procedures for supervision, modification and violation applicable to persons on parole.
(o) As used in this section, "felony crime of violence against the person" means felony offenses set forth in article two, three-e, eight-b or eight-d, chapter sixty-one of this code, and the felony offenses of arson and burglary of a residence where an individual is physically located at the time of the offense as set forth in article three, chapter sixty-one of this code.
(p) As used in this section, "felony offense where the victim was a minor child" means any felony crime of violence against the person and any felony offense set forth in article eight, eight-a, eight-c or eight-d, chapter sixty-one of this code.