Requirements within the scope of this chapter with respect to premises, facilities and operations of any official establishment which are in addition to, or different than those made under this chapter may not be imposed by any State or Territory or the District of Columbia, except that any such jurisdiction may impose recordkeeping and other requirements within the scope of paragraph (b) of section 460 of this title, if consistent therewith, with respect to any such establishment. Marking, labeling, packaging, or ingredient requirements (or storage or handling requirements found by the Secretary to unduly interfere with the free flow of poultry products in commerce) in addition to, or different than, those made under this chapter may not be imposed by any State or Territory or the District of Columbia with respect to articles prepared at any official establishment in accordance with the requirements under this chapter, but any State or Territory or the District of Columbia may, consistent with the requirements under this chapter exercise concurrent jurisdiction with the Secretary over articles required to be inspected under this chapter for the purpose of preventing the distribution for human food purposes of any such articles which are adulterated or misbranded and are outside of such an establishment, or, in the case of imported articles which are not at such an establishment, after their entry into the United States. This chapter shall not preclude any State or Territory or the District of Columbia from making requirement or taking other action, consistent with this chapter, with respect to any other matters regulated under this chapter.
(Pub. L. 85-172, § 23, as added Pub. L. 90-492, § 17, Aug. 18, 1968, 82 Stat. 807.)