Oregon Revised Statutes Animals § 609.060

(1) If the governing body of a county by ordinance, or a measure approved by the electors in an election conducted in accordance with ORS chapter 250, prohibits dogs from running at large, the county shall give notice, by publication in a newspaper having a general circulation in the county.

(2) After 60 days from the date of the notice, every person keeping a dog shall prevent the dog from running at large in any county or city where prohibited. A person who is the keeper of a dog commits a Class B violation if the dog runs at large where prohibited.