Oregon Revised Statutes Cities § 223.425

The proceedings required by the charter or other law for making of the original estimated or final assessment are not required with reference to the making of a reassessment. The reassessment shall be initiated by adoption of a resolution designating the improvement as to which a reassessment is contemplated, describing the boundaries of the district that the governing body contemplates for the reassessment and directing the recorder or other person to prepare a proposed reassessment upon the property included within the district. After passage of such resolution, the recorder or other person shall prepare the proposed reassessment and file it in the office of the recorder.