(2) Each adult in custody confined in execution of the judgment of sentence upon any conviction in the Department of Corrections institution, for any term other than life, and whose record of conduct shows that the adult in custody faithfully has observed the rules of the institution, shall be entitled to a deduction from the term of sentence to be computed as follows:
(a) From the term of a sentence of not less than six months nor more than one year, one day shall be deducted for every six days of the sentence actually served in the Department of Corrections institution.
(b) From the term of a sentence of more than one year, one day shall be deducted for every two days of the sentence actually served in the Department of Corrections institution.
(c) From the term of any sentence, one day shall be deducted for every 15 days of work actually performed in prison industry, or in meritorious work in connection with prison maintenance and operation, or of enrollment in an educational activity as certified by the educational director of the institution during the first year of prison employment or educational activity, and one day shall be deducted for every seven days of such work actually performed or educational activity certified after the first year to and including the fifth year of prison employment or educational activity certified, and one day for every six days of the work actually performed or educational activity certified after the fifth year of prison employment.
(d) From the term of any sentence, one day shall be deducted for every 10 days of work actually performed in agriculture during the first year of prison employment, and one day for every six days of the work actually performed thereafter.
(e) From the term of any sentence, one day shall be deducted for every six days’ work performed at work camp during the first year of prison employment, and one day for every four days thereafter. Once the four-day rate is achieved, it may be applied to subsequent work or education release programs while the adult in custody is serving the same term.
(3) The deductions allowed in subsection (2)(c), (d) and (e) of this section shall be in addition to those allowed in subsection (2)(a) and (b) of this section.
(4) The Department of Corrections shall develop pursuant to the rulemaking provisions of ORS chapter 183 a uniform procedure for granting, retracting and restoring deductions allowed in subsection (2) of this section.
(5) When a paroled adult in custody violates any condition of parole, no deduction from the term of sentence, as provided in subsection (2) of this section, shall be made for service by the adult in custody in the Department of Corrections institution prior to acceptance and release on parole, except when authorized by the State Board of Parole and Post-Prison Supervision upon recommendation of the superintendent thereof.
(6) The provisions of this section shall apply only to offenders sentenced for felonies committed prior to November 1, 1989. [Amended by 1953 c.560 §2; 1955 c.505 §1; 1957 c.686 §1; 1969 c.502 §10; 1973 c.562 §1; 1975 c.264 §1; 1977 c.374 §2; 1981 c.425 §2; 1985 c.53 §1; 1987 c.320 §166; 1989 c.790 §56; 2003 c.14 §231; 2019 c.213 §66]