ORS 825.515: Daily records and monthly reports by carriers.

(1) Every for-hire carrier and private carrier shall keep daily records, upon forms prescribed by the Department of Transportation, of all vehicles used during the current month.

      (2) On or before the last day of the month following, except as otherwise permitted under ORS 825.492, they shall certify to the department, upon forms prescribed therefor, the true and correct summaries of their daily records which shall show the extreme miles traveled in this state during the preceding month, the amount of fuel tax paid to the state during the preceding month, and such other information as the department may require.

      (3) The daily records shall be kept on file in the office of the carrier and thereafter preserved until written permission for their destruction is given by the department.