ORS § 167.343. Unlawful tethering
(1) A person commits the offense of unlawful tethering if the person tethers a domestic animal in the person’s custody or control:
(a) With a tether that is not a reasonable length given the size of the domestic animal and available space and that allows the domestic animal to become entangled in a manner that risks the health or safety of the domestic animal;
(b) With a collar that pinches or chokes the domestic animal when pulled;
(c) For more than 10 hours in a 24-hour period; or
(d) For more than 15 hours in a 24-hour period if the tether is attached to a running line, pulley or trolley system.
(2) A person does not violate this section if the person tethers a domestic animal:
(a) While the domestic animal remains in the physical presence of the person who owns, possesses, controls or otherwise has charge of the domestic animal;
(b) Pursuant to the requirements of a campground or other recreational area;
(c) For the purpose of engaging in an activity that requires licensure in this state, including but not limited to hunting;
(d) To allow the person to transport the domestic animal; or
(e) That is a dog kept for herding, protecting livestock or dogsledding.
(3) Unlawful tethering is a Class B violation.
ORS § 167.330. Animal neglect in the third degree
(1) A person commits the crime of animal neglect in the first degree if, except as otherwise authorized by law, the person intentionally, knowingly, recklessly or with criminal negligence:
(a) Fails to provide minimum care for an animal in the person’s custody or control and the failure to provide care results in serious physical injury or death to the animal; or
(b) Tethers a domestic animal in the person’s custody or control and the tethering results in serious physical injury or death to the domestic animal.
(2) Animal neglect in the first degree is a Class A misdemeanor.