US lawOregonRegulationsChapter 632 — Department of Geology and Mineral IndustriesDivision 20 — GEOTHERMAL REGULATIONS632-020-0090OAR 632-020-0090OAR 632-020-0090. Noise AbatementLast amended: 2013Length: 21 wordsOfficial source The method and degree of noise abatement must comply with the pertinent rules adopted by the Oregon Department of Environmental Quality.PreviousOAR 632-020-0070NextOAR 632-020-0095