MO Rev Stat § 267.670 (2021)
2021 Missouri Revised Statutes|Title XVII - Agriculture and Animals|Chapter 267 - State Veterinarian — Diseased Animals|Section 267.670 - Definitions.

Effective - 28 Aug 1961   267.670. Definitions. — As used in sections 267.670 to 267.730, unless the context clearly indicates otherwise, the following words shall mean:  (1) "Accredited approved veterinarian", a veterinarian who has been accredited by the United States Department of Agriculture and approved by the state department of agriculture and who is duly licensed under the laws of Missouri to engage in the practice of veterinary medicine, or a veterinarian domiciled and practicing veterinary medicine in a state other than Missouri, duly licensed under laws of the state in which he resides, accredited by the United States Department of Agriculture, and approved by the chief livestock sanitary official of that state;  (2) "Area", one or more counties or portions thereof;  (3) "Certified scabies free area", an area in which all sheep or goats have been inspected by a representative of the Missouri department of agriculture or of the animal disease eradication division of the United States Department of Agriculture and are found to be free of any evidence of scabies and such fact is certified to by both agencies;  (4) "Department", the department of agriculture of the state of Missouri. When the department of agriculture is charged to perform a duty, the duty may be performed by the director of agriculture of the state of Missouri or by the state veterinarian of the state of Missouri or his duly authorized deputies;  (5) "Division", the animal disease eradication division of the agricultural research service of the United States Department of Agriculture;  (6) "Infected animal", an animal of the ovine, caprine, or bovine species which shows clinical evidence of scabies or in which the presence of the scabies mite is demonstrated;  (7) "Licensed market", a market as defined and licensed under chapter 277;  (8) "Official health certificate", a legal record covering the requirements of the state of Missouri executed on an official form of the standard size from the state of origin and approved by the proper livestock sanitary official of the state of origin or an equivalent form provided by the United States Department of Agriculture and issued by an approved, accredited, licensed, graduate veterinarian;  (9) "Public stockyards market", any public stockyards located within the state of Missouri and subject to regulations of the United States Department of Agriculture or the Missouri department of agriculture;  (10) "Scabies", a communicable skin disease caused by infestation with mites of the species psroptes, sarcoptes, chorioptes or psorergates;  (11) "Trader" or "dealer", any person engaged in the business of buying, selling or exchange of livestock on any basis other than on a commission basis at any sale pen, concentration point, farm, truck or other conveyance including persons employed as an agent of the vendor or purchaser excluding public stockyards under federal supervision or markets licensed under sections 267.670 to 267.730 and under the supervision of the department, breed association sales or any private farm sale. ­­-------- (L. 1961 p. 26 § 1)