Va. Code § 3.2-5200
It shall be the duty of the Commissioner to foster and encourage the dairy industry of the Commonwealth, and for that purpose he shall investigate the general conditions of the creameries, cheese factories, condensed milk factories, skimming stations, milk stations, and farm dairies in the Commonwealth, with full power to enter upon any premises for such investigation, with the object in view of improving the quality and creating and maintaining uniformity of the dairy products of the Commonwealth. Should it become necessary in the judgment of the Commissioner, he may cause instruction to be given in any facility or in any locality of the Commonwealth, in order to promote the proper feeding and care of cows, or the practical operation of any plant producing dairy products, and in order to procure such a uniform and standard quality of dairy products in the Commonwealth.
Va. Code § 3.2-5200