Oregon Revised Statutes Oregon Vehicle Code § 823.023

(1) The Department of Transportation or authorized representatives may enter upon any premises, or any equipment, rolling stock or facilities operated or occupied by any motor carrier or railroad for the purpose of making any inspection, examination or test reasonably required in the administration of ORS chapters 823, 824, 825 and 826, and to set up and use on such premises, equipment, rolling stock or facilities any apparatus or appliance and occupy reasonable space therefor.

(2) The department or authorized representatives shall, upon demand, have the right to inspect the books, accounts, papers, records and memoranda of any motor carrier or railroad and to examine under oath any officer, agent or employee of such motor carrier or railroad in relation to its business and affairs.

(3) Any person who on behalf of the department makes demand of a motor carrier or railroad for an examination, inspection or test shall, upon request therefor, produce a certificate under the seal of the department showing authority to make such examination, inspection or test.

(4) The department or authorized representatives shall, upon demand, have the right to enter any premises of a business that the department has reasonable cause to believe tendered for shipment, by motor or rail, any hazardous material and to make any examination, inspection or test reasonably required to determine compliance with the health and safety regulations administered or enforced by the department. Any person, who on behalf of the department demands to make an examination, inspection or test, shall produce upon request a certificate under the seal of the department showing authority to make the examination, inspection or test.

(5) Nothing in this section authorizes the department to use any information developed thereunder for any purpose inconsistent with any statute governing motor carriers or railroads and administered by the department or to make a disclosure thereof for other than regulatory purposes.