Md. Code, Agriculture § 4–305

(a) The Secretary shall establish standards for quality of individual or grades of shell eggs.

(b) The State standards for quality of individual or grades of shell eggs shall be the same as those of the United States Department of Agriculture, where applicable.

(c) A person may not donate, sell, advertise, offer, or in any manner represent for sale shell eggs that do not meet the standards adopted by the Secretary.