Oregon Revised Statutes Public Health and Safety § 468B.225

(1) Prior to conducting an investigation of an animal feeding operation under ORS 468B.217 on the basis of a complaint, the State Department of Agriculture shall:

(2) If, upon investigation under ORS 468B.217 on the basis of a complaint received under subsection (1) of this section, the State Department of Agriculture determines that an animal feeding operation has not violated a provision of ORS chapter 468 or 468B, a rule adopted under ORS chapter 468 or 468B or the conditions of a permit issued under ORS chapter 468 or 468B, and the department has reason to believe that the complaint was groundless and made for the purpose of harassing the operator, the department may refuse to consider future complaints made by the person.