Vt. Stat. Ann. tit. 6, § 2742

Before a dairy farm may sell or offer for sale milk to a handler, and at least once a year thereafter, the Secretary shall inspect or cause to be inspected all dairy farms as to their premises, equipment, dairy animals, procedures, and sanitation conditions. He or she may enter into reciprocal agreements with or accept the inspection reports of appropriate dairy sanitation agencies of other states, municipalities, or the federal government in lieu of inspection by the Secretary, provided their standards and administration are substantially equal to the standards established by the Secretary under the provisions of this part. All milk producers shall comply with all state-federal-cooperative livestock disease control or eradication programs.