Maryland Code, Agriculture § 4-307

(a) A person may not sell, offer to sell, or deliver any shell eggs not properly designated in respect to quality, size, and net quantity standards.

(b) When shell eggs are sold or offered for sale, the designation shall be plainly and conspicuously shown on the container and in the offer to sell, and if the shell eggs are loose, by a sign placed on or near the eggs.

(c) Any shell eggs not designated as to quality shall be presumed to meet the minimum standards for quality established by the Secretary by regulation.