South Dakota Administrative Rules
Title 12 - Department of Agriculture
Article 12:26 - Eggs and egg products
Chapter 12:26:10 - Labeling and sales requirements
Section 12:26:10:01 - Identification and sale of graded eggs

(1) When graded eggs are exposed or offered for retail sale, the container shall be legibly marked with the exact grade and weight class in letters not smaller than three-sixteenths inch high;

(2) The statement "keep refrigerated" shall appear on the face of each carton in letters not smaller than three-sixteenths inch high;

(3) The expiration date or use by date shall be legibly stamped on the outside of each carton. Eggs marked with an expiration date may be offered for sale for no more than 30 days after the date of pack. The expiration date using the day and the three-letter abbreviation for the month shall be preceded by the letters "EXP". Eggs marked with use by date may be offered for sale no more than 45 days after date of pack:

(4) Each container of eggs shall have legibly stamped on the outside of the carton the United States department of agriculture shell egg surveillance handler code preceded by the state code, the packing plant name and address, or the code number registered with the secretary;

(5) Loose pack graded eggs may not be offered for sale.