OAR 150-309-0250: Preparation of the Sales Ratio Study

(1) The collecting, recording, confirming, analyzing, and formatting of the sales data used in the sales ratio study and any other data to be used in preparing the certified ratio study must be done under the supervision of the county assessor in conformance with the current Assessor’s Ratio Procedure Manual published by the department. (2) Deviations from the procedures contained in the manual must be approved by the department. (3) The sales data file, if electronically maintained, must have the format required by OAR 150-306-0080. (4) Counties must prepare and complete a Certified Ratio Study for all property classes each year on or before July 1. The assessor must file a copy of the study with the department no later than July 1 of each year. The department will consider an extension for cause, to last no later than August 1, if a request is filed in writing with the department prior to July 1. [Publications: Publications referenced are available from the agency.]