Minn. Stat. § 32.21
Subd. 1. Purchase and sale prohibition.
A person may not sell or knowingly buy adulterated dairy products.
Subd. 2. Manufacture of food for human consumption from adulterated milk or cream prohibited.
An article of food for human consumption may not be manufactured from adulterated milk or cream, except as provided in section 32.22 or the Federal Food, Drug, and Cosmetic Act, United States Code, title 21, section 301 et seq., and related federal regulations.
Prior to processing milk, all bulk milk pickup tankers must be tested for the presence of beta lactum drug residues and for other residues as determined necessary by the commissioner. Test methods must be those approved by the Association of Analytical Chemists (AOAC) or under the AOAC C2 program. Bulk milk tankers testing positive must be reported to the commissioner or the commissioner's agent within 24 hours. This report must include how and where the milk was disposed of, the volume, the responsible producer, and the possible cause of the violative residue. All milk sample residue results must be recorded and retained for examination by the commissioner or the commissioner's agent for six months by the receiving plant. Milk received from a producer in other than a bulk milk pickup tanker is also subject to this section.
Subd. 3. Adulterated milk.
For purposes of this section and section 32.22, milk is adulterated if it:
Subd. 4. Penalties.
(c) A milk producer who violates subdivision 3, clause (1), (2), (3), (4), or (5), is subject to clauses (1) to (3) of this paragraph.
(d) The producer's shipment of milk must be immediately suspended if the producer is identified as an individual source of milk containing residues causing a bulk load of milk to test positive in violation of subdivision 3, clause (6) or (7). The Grade A or manufacturing grade permit must be converted to temporary status for not more than 30 days and shipment may resume only after subsequent milk has been sampled by the commissioner or the commissioner's agent and found to contain no residues above established tolerances or safe levels.
The Grade A or manufacturing grade permit may be restored if the producer completes the "Milk and Dairy Beef Residue Prevention Protocol" with a licensed veterinarian, displays the signed certificate in the milkhouse, and sends verification to the commissioner within the 30-day temporary permit status period. If the producer does not comply within the temporary permit status period, the Grade A or manufacturing grade permit must be suspended. A milk producer whose milk supply is in violation of subdivision 3, clause (6) or (7), and has caused a bulk load to test positive is subject to clauses (1) to (3) of this paragraph.