US lawOregonRegulationsChapter 808 — Landscape Contractors BoardDivision 2 — DEFINITIONS AND STANDARDS808-002-0150OAR 808-002-0150OAR 808-002-0150. Backflow AssemblyLast amended: 2006Length: 30 wordsOfficial source “Backflow assembly,” as used in ORS 671.615, means the combination of a backflow device and two manual control valves on either side of the device, and the plumbing in between.PreviousOAR 808-002-0145NextOAR 808-002-0155