((a)) ** Exemptions; authorities under food, drug, and cosmetic provisions unaffected** Poultry and poultry products shall be exempt from the provisions of the Federal Food, Drug, and Cosmetic Act [ et seq.] to the extent of the application or extension thereto of the provisions of this chapter, except that the provisions of this chapter shall not derogate from any authority conferred by the Federal Food, Drug, and Cosmetic Act prior to .21 U.S.C. 301August 18, 19681968-08-18

((b)) ** Enforcement proceedings; detainer authority of representatives of Secretary of Health and Human Services** The detainer authority conferred by shall apply to any authorized representative of the Secretary of Health and Human Services for purposes of the enforcement of the Federal Food, Drug, and Cosmetic Act [ et seq.] with respect to any poultry carcass, or part or product thereof, that is outside any official establishment, and for such purposes the first reference to the Secretary in shall be deemed to refer to the Secretary of Health and Human Services.section 467a of this title21 U.S.C. 301section 467a of this title