The department is hereby authorized, upon request to supply brucella vaccine, and to employ the services of veterinarians, in cooperation with the United States Department of Agriculture, to administer such vaccine to, and conduct blood tests on, animals, owned by any person or persons in the state of Missouri, who having first signified, in writing, their intention to cooperate with the department and the United States Department of Agriculture, by signing an agreement to qualify his herd as a brucellosis certified free herd or to participate in the program for the control and eradication of brucellosis, under plan A, B, C, or D, as approved by the state and federal departments of agriculture. Such vaccine and veterinary service and testing shall be furnished without expense to the owner, as long as funds are available for that purpose.

(L. 1955 p. 5 § 267.275)