Oregon Revised Statutes Agriculture § 561.220

(1) Except as hereafter provided in subsections (2) and (3) of this section, no person shall alter, deface or remove any seal, sign, tag, stamp, placard, mark, brand or similar object used by the State Department of Agriculture pursuant to any law of this state.

(2) Subsection (1) of this section does not apply to:

(3) No person shall sell food or other agricultural products in or from a used container bearing any of the markings referred to in subsection (1) of this section unless such person first removes or defaces such markings.