Oregon Revised Statutes Animals § 596.331

(1) A person may not sell, offer to sell or dispose of any livestock that the person knows to be exposed to, a carrier of or infected with any disease required to be reported under ORS 596.321, except:

(2) A person may not sell, offer to sell or dispose of the meat, milk or other parts of any livestock, quarantined by the State Department of Agriculture, for food or other purposes, except as authorized by the quarantine order.

(3) A person may not sell or offer for sale, for any purpose other than slaughter or to a feedlot or other normal and usual feeding facility for slaughter within 12 months of sale, any female cattle of a beef breed that have not been vaccinated against brucellosis as evidenced by an official vaccination tattoo in the right ear of each animal.

(4) A person may not sell or offer for sale, for any purpose other than slaughter, any female cattle of a dairy breed that have not been vaccinated against brucellosis as evidenced by an official vaccination tattoo in the right ear of each animal.