ORS 599.490¹
Department may impose stockyard requirements to prevent spread of disease

In order to carry out the provisions of ORS 596.020 (Duties of the State Department of Agriculture in protection of people and livestock), the State Department of Agriculture may require such testing, treating and examining of livestock sold, traded, exchanged or handled at or through any stockyard as in its judgment may be necessary to prevent the spread of brucellosis, tuberculosis or paratuberculosis, hog cholera and other infectious, contagious or communicable diseases among the livestock of this state. [1957 c.390 §20; 1959 c.63 §7]

1 Legislative Counsel Committee, CHAPTER 599—Livestock Auction Markets; Stockyards; Auction Sales, https://­www.­oregonlegislature.­gov/­bills_laws/­Archive/­2007ors599.­pdf (2007) (last ac­cessed Feb. 12, 2009).
2 OregonLaws.org contains the con­tents of Volume 21 of the ORS, inserted along­side the per­tin­ent statutes. See the preface to the ORS An­no­ta­tions for more information.
3 OregonLaws.org assembles these lists by analyzing references between Sections. Each listed item refers back to the current Section in its own text. The result reveals relationships in the code that may not have otherwise been apparent. Currency Information