US lawOregonRegulationsChapter 632 — Department of Geology and Mineral IndustriesDivision 10 — OIL AND GAS RULES632-010-0146OAR 632-010-0146OAR 632-010-0146. Vacuum Pumps ProhibitedLast amended: 2013Length: 28 wordsOfficial source The use of vacuum pumps or other devices for the purpose of putting a vacuum on any gas- or oil-bearing stratum is prohibited, unless approved by the department.PreviousOAR 632-010-0144NextOAR 632-010-0148