(a) Shell eggs to be identified with the grademarks illustrated in § 56.36 must be individually graded by a grader or by authorized personnel pursuant to § 56.11 and thereafter check graded by a grader.

(b) Shell eggs not graded in accordance with paragraph (a) of this section may be officially graded on a sample basis and the shipping containers may be identified with grademarks which contain the words “Sample Graded” and which are approved by the Administrator.

(c) In order to be officially identified with a USDA consumer grademark, shell eggs shall:

(1) Be eggs of current production;

(2) Not possess any undesirable odors or flavors;

(3) Not have previously been shipped for retail sale;

(4) Not originate from a layer house environment determined positive for the presence of Salmonella Enteritidis (SE), unless the eggs from the layer house have been sampled and have tested negative for the presence of SE in the eggs; and

(5) Not originate from eggs testing positive for SE, or not have been subject to a product recall.