does not meet the criterion set forth for eggs or egg products under paragraph (z)(2) of section 403 of the Federal Food, Drug, and Cosmetic Act ( 21 U.S.C. 343 ) (as added by section 4(a)). 4. Enforcement of definition (a) In general Section 403 of the Federal Food, Drug, and Cosmetic Act ( 21 U.S.C. 343 ) is amended by adding at the end the following: (z) (1) If it uses a market name for an egg or egg product described in subparagraph (3) and the food does not meet the criterion for being an egg or egg product, as described in subparagraph (2). (2) For purposes of this paragraph, a food is an egg only if the food is the reproductive output of avian poultry species, including an albumen or yolk that is, or was at any point, encased in a calcium-based shell. For purposes of this paragraph, a food is an egg product only if the food is an egg product described in part 160 of title 21, Code of Federal Regulations (or successor regulations). (3) A market name for an egg or egg product described in this subparagraph means the egg or egg product terms described in part 160 of title 21, Code of Federal Regulations (or successor regulations), section 590.5 of title 9, Code of Federal Regulations (or successor regulations), or the common and usual name for egg . . (b) Guidance (1) New guidance The Secretary of Health and Human Services, acting through the Commissioner of Food and Drugs, shall— (A) not later than 180 days after the date of enactment of this Act, issue draft guidance on how enforcement of the amendment made by subsection (a) will be carried out