Oregon Revised Statutes Animals § 609.135

(1) ORS 609.156, 609.162 and 609.168 apply in every county having a dog control program.

(2) Except as provided under subsections (1) and (3) of this section, ORS 609.135 to 609.190 apply in every county having a dog control program except as otherwise provided by county charter or ordinance. Except as provided under subsections (1) and (3) of this section, the provisions of ORS 609.135 to 609.190 do not limit the powers of cities or counties to adopt ordinances and regulations relating to the control of dogs.

(3) ORS 609.162 (2) does not eliminate or restrict the ability of a county to adopt a charter or ordinance that is contrary to ORS 609.163. Notwithstanding any county charter or ordinance, a notice of determination sent under ORS 609.156 (2) or after a full and fair hearing shall be sent as provided under ORS 609.158 (4).