New Jersey Statutes Title 4. Agriculture and Domestic Animals 4 § 4-22

Every owner, operator or manager of a cheese factory, creamery, skimming station or other place where milk is received and the by-products distributed, shall, before returning to or delivering to any person any skim milk, whey, buttermilk, or other milk by-products to be used for feeding purposes for farm animals, cause such skim milk, whey, buttermilk, or other milk by-products to be thoroughly pasteurized by heating the same to one hundred forty-five degrees Fahrenheit and holding at that temperature for not less than thirty minutes, or to one hundred eighty-five degrees without holding. This section shall not apply to cheese factories or creameries that pasteurize the milk or cream prior to manufacture.