Tennessee Code Title 53. Food, Drugs and Cosmetics § 53-3-112

(3)(A) Any Grade A milk, milk products or dairy products produced in a political subdivision of the state shall be accepted without further inspection in all other political subdivisions of the state or their police jurisdictions, if the products are produced or pasteurized under regulations that are substantially equivalent to the latest United States public health service recommended Grade A pasteurized milk ordinance, and that have been awarded an acceptable milk sanitation rating made by a state department of agriculture laboratory certifying officer and milk sanitation rating officer certified by the United States public health service, and acceptable to the commissioner.

(B) All ungraded milk, whether used for manufacturing purposes or otherwise, shall be accepted in any political subdivision of this state without further inspection if produced in accordance with the regulations promulgated by the commissioner, setting out minimum standards for operation of manufactured milk product plants.