Oregon Revised Statutes State Legislative Department and Laws § 174.520

(1) All statute laws of Oregon of a general, public and permanent nature enacted prior to January 12, 1953, were repealed effective December 31, 1953, except as provided in subsection (2) of this section.

(2) If any provision of the statute laws described in ORS 174.510 (1), derived from an Act that amended or repealed a preexisting statute, is held unconstitutional, the provisions of subsection (1) of this section shall not prevent the preexisting statute from being law if that appears to have been the intent of the Legislative Assembly or the people.