Section 475.930 - Imposition of sentence under ORS 164.061, 475.907, 475.924 and 475.925(1) When a court sentences a person under ORS 164.061, 475.907, 475.924 and 475.925:(a) The court shall use the criminal history scale of the sentencing guidelines grid of the Oregon Criminal Justice Commission to determine the sentence to impose. The sentence described in:(A) ORS 475.925 (1) shall be determined utilizing crime category 10 of the sentencing guidelines grid.(B) ORS 475.907 (1) and 475.925 (2) shall be determined utilizing crime category 9 of the sentencing guidelines grid.(C) ORS 164.061 shall be determined utilizing crime category 8 of the sentencing guidelines grid.(b)(A) Notwithstanding ORS 161.605, the court shall impose the sentence described in ORS 164.061, 475.907, 475.924 and 475.925 and may not impose a sentence of optional probation or grant a downward dispositional departure or a downward durational departure under the rules of the commission.(B) The court may impose a sentence other than the sentence described in ORS 164.061, 475.907, 475.924 and 475.925 if the court imposes a longer term of incarceration that is otherwise required or authorized by law.(2) A person sentenced under ORS 164.061, 475.907, 475.924 and 475.925 may not receive a reduction in the term of incarceration for appropriate institutional behavior that exceeds 20 percent of the sentence imposed.475.930 was enacted into law but was not added to or made a part of ORS chapter 475 or any series therein by law. See Preface to Oregon Revised Statutes for further explanation.