ORS 315.123: Minimum production and processing volume requirements; record- keeping requirements.

(1) For the first three tax years in which a taxpayer claims a credit under ORS 315.119, a taxpayer shall be deemed to have complied with the applicable minimum production and processing volume requirements of ORS 315.119 (3)(c) if the taxpayer has satisfied these requirements for the preceding tax year.

      (2) For the fourth tax year in which a taxpayer claims a credit under ORS 315.119, the taxpayer shall be deemed to have complied with the applicable minimum production and processing volume requirements of ORS 315.119 (3)(c) if the taxpayer has satisfied these requirements for the preceding tax year and at least one of the three tax years immediately prior to the preceding tax year.

      (3) For each tax year in which a credit is claimed under ORS 315.119, the taxpayer shall maintain records sufficient to determine the taxpayer’s production and processing volume for purposes of ORS 315.119 (3)(c). A taxpayer shall maintain the records required under this subsection for at least 10 years.