Mich. Comp. Laws § 288.695
Incoming raw milk and manufactured dairy products shall not exceed the standards set forth in section 70. Plants receiving commingled raw milk, heat treated, or pasteurized milk will be sampled a minimum of 4 out of every 6 months. If 2 of the last 4 samples exceed the standard given, a warning notice shall be issued and the plant shall remain on warning notice as long as any 2 of the last 4 consecutive samples exceed the limits. Another sample will be collected after 3 days but within 21 days. If any sample so collected exceeds the limit of that parameter while the plant is on warning notice, the plant permit will be suspended for the violative product until the problem is corrected, after being provided notice and an opportunity for an administrative hearing. Four samples shall then be taken at the rate of not more than 2 per week on separate days within a 3-week period, and the department shall reinstate the permit for that product upon compliance with the appropriate standard. Sterilized or aseptically processed milk and dairy products shall comply with processing and biological standards established by the scheduled process under 21 C.F.R. part 113.
MCL 288.695