The Secretary of State shall, by rule, specify categories and types of spending that constitute expenditures for purposes of ORS § 297.435 and 297.485. [2023 c.10 § 3]

297.503 was enacted into law by the Legislative Assembly but was not added to or made a part of ORS Chapter 297 or any series therein by legislative action. See Preface to Oregon Revised Statutes for further explanation.