US lawOregonRegulationsChapter 141 — Department of State LandsDivision 90 — ADMINISTRATIVE RULES FOR WETLAND DELINEATION REPORT REQUIREMENTS AND FOR JURISDICTIONAL DETERMINATIONS FOR THE PURPOSE OF REGULATING FILL AND REMOVAL WITHIN WATERS OF THIS STATE141-090-0055OAR 141-090-0055OAR 141-090-0055. Effective DateLast amended: 2023Length: 8 wordsOfficial source These rules become effective on June 1, 2023.PreviousOAR 141-090-0050