ORS 93.312: Oregon Coordinate System.

(1) As used in this section, “Oregon Coordinate System” means a coordinate mapping system, composed of three coordinate projection mapping systems known as:

      (a) The Oregon State Plane Coordinate System of 1927;

      (b) The Oregon State Plane Coordinate System of 1983; and

      (c) The Oregon Coordinate Reference System.

      (2) A description of land that contains coordinates associated with the position of a point on a land boundary must:

      (a) Use the Oregon Coordinate System;

      (b) Use one specified zone and system for the entire description;

      (c) Include coordinate system datum with epoch and zone designation;

      (d) Use coordinates established by a survey connection to the National Spatial Reference System;

      (e) Reference a survey of record that reports the accuracy of coordinates at a 95 percent confidence level; and

      (f) Include distances, bearings, areas and other boundary elements.

      (3) The Department of Transportation shall adopt rules implementing the Oregon Coordinate System.