Oregon Revised Statutes Trade Regulations and Practices § 646.923

(1) Each biodiesel or other renewable diesel producer, each operator of a biodiesel bulk facility and each person who imports biodiesel or other renewable diesel into this state for sale in this state shall keep for at least one year, at the person's registered place of business, the certificate of analysis for each batch or production lot of B100 biodiesel sold or delivered in this state.

(2) The Director of Agriculture, or the director's authorized agent, upon reasonable oral or written notice, may make such examinations of books, papers, records and equipment the director requires to be kept by a biodiesel or other renewable diesel producer, facility operator or importer as may be necessary to carry out the duties of the director under ORS 646.910 to 646.923.

(3) The director, or the director's authorized agent, may test biodiesel or other renewable diesel for the purpose of inspecting the biodiesel or other renewable diesel of any producer, bulk facility, business or other establishment that sells, offers for sale, distributes, transports, hauls, delivers or stores biodiesel or other renewable diesel that is subsequently sold or offered for sale, for compliance with the motor fuel quality standards adopted pursuant to ORS 646.957.

(4) For the purpose of ensuring the quality of B100 biodiesel, the director, or the director's authorized agent, may obtain, at no cost to the department and as often as deemed necessary, a representative sample of B100 biodiesel from any producer, bulk facility, business or other establishment that sells, offers for sale, distributes, transports, hauls, delivers or stores biodiesel. The State Department of Agriculture shall adopt rules establishing the number of samples to be tested. The entire cost of transportation and testing of the samples shall be the responsibility of and invoiced directly to the business from which the sample was obtained.