9 C.F.R. § 146.23
Participating flocks which have met the respective requirements specified in this section may be designated by the following terms and the corresponding designs illustrated in § 146.9 of this part:
(a) U.S. H5/H7 Avian Influenza Monitored—(1) Table-egg layer pullet flocks. This program is intended to be the basis from which the table-egg layer industry may conduct a program to monitor for the H5/H7 subtypes of avian influenza. It is intended to determine the presence of the H5/H7 subtypes of avian influenza in table-egg layer pullets through routine surveillance of each participating commercial table-egg layer pullet flock. A flock will qualify for this classification when the Official State Agency determines that it has met one of the following requirements:
(2) Table-egg layer flocks. This program is intended to be the basis from which the table-egg layer industry may conduct a program to monitor for the H5/H7 subtypes of avian influenza. It is intended to determine the presence of the H5/H7 subtypes of avian influenza in table-egg layer through routine surveillance of each participating commercial table-egg layer flock. A flock will qualify for this classification when the Official State Agency determines that it has met the following requirements:
[71 FR 56328, Sept. 26, 2006, as amended at 76 FR 15796, Mar. 22, 2011; 79 FR 38765, July 9, 2014; 79 FR 71624, Dec. 3, 2014; 83 FR 28355, June 19, 2018]