The ultimate source of information on egg sale regulations is the Dairy and Meat Inspection Program of the Minnesota Department of Agriculture. That division is responsible for the regulation of egg sales in Minnesota, and the inspectors on staff there work directly with farmers and processors.
Telephone number for Dairy and Meat Inspection Program: 651-201-6300.
Meat, Poultry, and Egg Inspection Web Page:
https://www.mda.state.mn.us/food-feed/sale-eggs-minnesota