2013 ORS § 803.430¹
Certain vehicles required to establish registration weight for fee determination

(1) Registration weight is established for the following purposes:

(a) The registration weight is the weight used in the declaration of weight under ORS 803.435 (Declaration of weight for fee determination) to determine the registration fees under ORS 803.420 (Registration fees) for vehicles required to establish registration weight under this section.

(b) A vehicle that is required to establish registration weight by this section is in violation of ORS 803.315 (Failure to pay registration fee) if the vehicle is operated on a highway of this state at a weight in excess of the registration weight except when carrying a load:

(A) Under the provisions of ORS 376.305 (Policy and purpose of Act) to 376.390 (Payment of taxes and fees by forest road contractor);

(B) Of over 105,500 pounds combined weight or loaded weight under a variance permit issued under ORS 818.200 (Authority to issue variance permits);

(C) Under a registration weight trip permit issued under ORS 803.600 (Trip permits); or

(D) Consisting of towed motor vehicles required to be registered under the vehicle code.

(2) Registration weight is established at the time of registration and whenever the vehicle has been altered or reconstructed by furnishing a declaration of weight described under ORS 803.435 (Declaration of weight for fee determination) that contains a declaration of the maximum combined weight or loaded weight at which the vehicle will be operated on the highways of this state except when carrying loads described under subsection (1)(b) of this section. The maximum registration weight for any vehicle required to establish a registration weight under this section is 105,500 pounds. Vehicles operating at weights above 105,500 pounds will operate under a variance permit issued under ORS 818.200 (Authority to issue variance permits).

(3) Except as provided in subsection (4) of this section, the following vehicles are required to establish a registration weight under this section:

(a) Any motor truck that will be operated on the highways at a combined weight or loaded weight of more than 10,000 pounds not including the weight of any camper or trailing vehicle described in subsection (5) of this section, or any trailing manufactured structure.

(b) Any truck tractor that will be operated on the highways at a combined weight of more than 8,000 pounds not including the weight of any camper or trailing vehicle described in subsection (5) of this section, or any trailing manufactured structure.

(c) An armored car, tow vehicle, hearse or ambulance.

(d) Any other motor vehicle that will be operated on the highways at a combined weight or loaded weight of more than 10,000 pounds not including the weight of any camper or trailing vehicle as described in subsection (5) of this section, or any trailing manufactured structure.

(e) A self-propelled mobile crane.

(f) Any motor vehicle registered as a farm vehicle under ORS 805.300 (Farm vehicle registration).

(4) A vehicle that is being registered under a specific provision of the vehicle code where fees are not based on weight or where registration weight is specifically not required is not required to establish registration weight under this section.

(5) The weight of a camper or the following trailing vehicles may not be included in the registration weight:

(a) Trailers with a loaded weight of 8,000 pounds or less.

(b) Special use trailers, travel trailers and fixed load vehicles.

(c) Towed motor vehicles.

(6) The weight of a trailing manufactured structure may not be included in the registration weight. [1983 c.338 §230; 1985 c.16 §87; 1985 c.71 §3; 1985 c.172 §6; 1989 c.723 §9; 1991 c.284 §18; 1993 c.751 §24; 2003 c.655 §113; 2005 c.654 §17; 2005 c.770 §2; 2007 c.50 §2]