ORS 12.270
Conclusive presumption of validity of governmental subdivision boundary proceedings one year after effective date
(1)
Formations and change of organizations under ORS 198.705 (Definitions for ORS 198.705 to 198.955) to 198.955 (Disposition of assets).(2)
Boundary changes under ORS 199.410 (Policy) to 199.519 (Effective date of boundary change).(3)
Consolidations under ORS 199.705 (Definitions for ORS 199.705 to 199.795) to 199.795 (Operation and effect of proclamation).(4)
Incorporations under ORS 221.010 (Definitions for ORS 221.020 to 221.100) to 221.090 (Terms of office of first city council).(5)
Annexations under ORS 222.111 (Authority and procedure for annexation) to 222.180 (Effective date of annexation), 222.750 (Annexation of unincorporated territory surrounded by city) and 222.840 (Short title) to 222.915 (Application of ORS 222.840 to 222.915).(6)
Consolidations under ORS 222.210 (Authority to consolidate adjoining and nonadjoining cities or territories) to 222.310 (Construction of ORS 222.210 to 222.310).(7)
Withdrawals and transfers of territory under ORS 222.510 (Annexation of entire district) to 222.580 (Procedure applicable to prior annexations in which no property division was made).(8)
Mergers under ORS 222.610 (Surrender of city charter and merger into adjoining city) to 222.710 (Return statements filed with county recording officer).(9)
Formations and changes under ORS chapter 261.(10)
Alterations, changes, mergers and consolidations under ORS 330.080 (Composition, purpose and duties of district boundary board) to 330.123 (Division of assets and liabilities), 330.505 to 330.780 (1989 Edition) and 335.490 (Extension of union high school course of study) to 335.505 (Transformation of union high school district into common school district).(11)
Alterations, changes, mergers and consolidations under ORS chapter 333 commenced before July 1, 2003.(12)
Formations and boundary changes under ORS 341.025 (Petition for formation of district) to 341.125 (First board) and 341.565 (Boundary board) to 341.575 (Liability of annexed, merged or detached territory).(13)
Organizations and boundary changes under ORS 545.002 (Definitions) and 545.025 (Purposes of irrigation district) to 545.043 (Qualifications of directors), 545.051 (Change of boundaries authorized) to 545.105 (Assent of bondholders), 545.109 (Recording minutes of board), 545.123 (Redivision of district), 545.126 (Liability of excluded lands for district’s obligations) and 545.131 (Union or merger of districts).(14)
Formations and boundary alterations under ORS 547.005 (Authority to form drainage district) to 547.060 (Scope of Drainage District Act) and 547.250 (Changes in plan for reclamation) to 547.260 (Appointment of commissioners when plan amended).(15)
Formations and organizations under ORS chapter 551. [1975 c.326 §2; 1991 c.167 §1; 1999 c.452 §29; 2003 c.226 §20; 2005 c.209 §1]
Source:
Section 12.270 — Conclusive presumption of validity of governmental subdivision boundary proceedings one year after effective date, https://www.oregonlegislature.gov/bills_laws/ors/ors012.html
(accessed May 26, 2025).