California Code, Food and Agricultural Code (Formerly Agricultural Code) - FAC § 35832

(1) Milk and milk products drained from processing equipment at the end of a run, collected from a defoamer system, and milk or milk product solids rinsed from equipment, containers, or pipelines shall be repasteurized only if that milk or those milk products are handled in a sanitary manner and maintained at 45 degrees Fahrenheit (7 degrees Celsius) or less. When the handling or cooling, or both, of that milk or those milk products is not in compliance with this requirement, they shall be discarded.

(2) Equipment, designated areas, or rooms utilized for handling, processing, and storage of returned packaged milk or milk products are maintained, operated, cleaned, and sanitized so as to preclude the contamination of Grade A products and equipment and the Grade A operations. The repasteurization of milk and milk products shipped in milk tank trucks, which have been pasteurized at another Grade A milk plant and have been handled in a sanitary manner and maintained at 45 degrees Fahrenheit (7 degrees Celsius) or less, is permitted.

(3) Packaged milk and milk products that have physically left the premises of the processing plant shall not be repasteurized for Grade A use.

(4) Milk and milk products from damaged, punctured, or otherwise contaminated containers, or milk products from out-of-code containers, shall not be repasteurized for Grade A use.

(5) All milk and milk products that have overflowed, leaked, or been spilled or improperly handled shall be discarded.