ORS 815.167: Prohibition on selling studs other than lightweight studs; exemption.

(1) Except as provided in subsection (4) of this section, a tire dealer may not sell a tire equipped with studs that are not lightweight studs.

      (2) A tire dealer may not sell a stud other than a lightweight stud for installation in a tire.

      (3) As used in this section:

      (a) “Lightweight stud” means a stud that is recommended by the manufacturer of the tire for the type and size of the tire and that:

      (A) Weighs no more than 1.5 grams if the stud is size 14 or less;

      (B) Weighs no more than 2.3 grams if the stud size is 15 or 16; or

      (C) Weighs no more than 3.0 grams if the stud size is 17 or larger.

      (b) “Tire dealer” means a person engaged in a business, trade, occupation, activity or enterprise that sells, transfers, exchanges or barters tires or tire related products for consideration.

      (4) A tire dealer may sell a tire equipped with studs that are not lightweight studs if the studs are retractable.