Oregon Revised Statutes Oregon Vehicle Code § 825.024

(a) Is used for transportation described under ORS 805.390.

(b) Is used for transporting sand, gravel, rock, dirt, debris, cinders or asphaltic concrete mix to a project of a district or corporation organized under ORS chapter 545, 547 or 554 when the project is being constructed on land owned or leased by the farmer and the materials are directly related to the construction of the project.

(c) Has three or fewer permanent axles and is used in part to provide transportation services for hire when such services relate to the farm of another and are services that the vehicle owner could perform in the operation of the owner's farm under farm vehicle registration issued under ORS 805.300 or with the farm device issued under ORS 805.400. For purposes of this paragraph, a single drop axle is not a permanent axle.

(d) Is a combination of a pickup truck and a trailer and is used in part to provide transportation services for hire when such services relate to the farm of another and are services that the vehicle owner could perform in the operation of the owner's farm under farm vehicle registration issued under ORS 805.300 or with the farm device issued under ORS 805.400.

(a) Are operating in interstate commerce; or

(b) Have a combined weight of more than 80,000 pounds.