Mich. Comp. Laws § 288.511

Sec. 41. (1) The department shall revoke or deny a license for a milk plant if the licensee or applicant fails to provide 1 of the security devices required as a condition to issuance and maintenance of a license. As a condition to issuance and maintenance of a license, a milk plant that is a first receiving point for milk shall provide 1 or more of the security devices described in section 42, 43, or 44. (2) Milk plants that receive milk only from dairy farms under the same sole proprietorship, the same registered partnership, or the same corporate ownership having the same registered name as the milk plant are exempt from the requirements of this section.