In order to protect the public health and welfare, to promote the interests of the dairy industry in Minnesota, and to secure uniformity, the commissioner of agriculture may adopt standards, grades and price differentials between various grades of milk and cream for milk and cream purchased for manufacturing purposes. Before adopting any standards, grades, or price differentials for milk and cream, the commissioner shall hold a public hearing thereon, as provided by law. Until such standards, grades and price differentials are made and filed, the standards, grades, and price differential heretofore made by the commissioner remain in effect except as otherwise prescribed by law.
All milk or cream purchased for manufacturing purposes shall be purchased on the basis of the standards, grades, and price differentials between grades so adopted. Every purchaser of milk or cream for manufacturing purposes shall, at time of payment therefor, furnish the person from whom purchased a statement showing the date of grading, the grade, and the price paid therefor. The statement may be included on the check delivered by the purchaser to the seller in payment of the milk or cream.
The commissioner of agriculture shall enforce the provisions of this section.
This section shall not apply to any action now pending in any of the courts of this state, or to any cause of action arising, or violation which occurred, prior to April 18, 1955.