Here is from the University of Minnesota regarding eggs sales in Minnesota.
They are actually fairly easy to comply with if you sell from home or farmers market.
Note the word "should" regarding registration. Should is not the same as "must" "shall" or "will" in legalese.
http://www.misa.umn.edu/index.htm
Egg Sales
A Brief Run-Down of the Rules
Farmers can sell eggs directly from their farm to individual customers with no licensing, registration, or inspection.
Farmers who want to sell eggs at their farmers' market stall may do so without licensing or registration. The eggs must be candled, labeled with the farmer's name and address, and kept at temperature of 45 degrees F or less. Eggs can be kept in a cooler with ice for up to 4 hours. For storage beyond 4 hours they should be in mechanical refrigeration.
Farmers with fewer than 3,000 hens who want to sell eggs to grocery stores, restaurants, or other food businesses can do so without a license, but they
should
register with the Minnesota Department of Agriculture as an exempt egg producer. There is a simple one-page registration form, and no fee for filing the form. Normally there is no inspection of a registered exempt egg producer. However, the MDA does have the right to inspect if they receive a complaint.
Exempt egg producers who sell eggs to food businesses must candle and grade eggs, and pack and label eggs according to federal regulations. Candled and graded eggs must be stored at a temperature of 45 degrees F or less. More information on candling, grading, and packing requirements can be found in the Shell Eggs fact sheet, below.
Authority of the Minnesota Department of Agriculture
The ultimate source of information on egg sale regulations is the Dairy and Food Inspection Division 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 Food Inspection Division: 651-201-6027.
This is copy and pasted from the university of Minnesota website, I want to make sure I am giving credit of copyrighted material if it is copyrighted.