U.S. Code / Title 21 — Food and Drugs / Chapter 9—Federal Food, Drug, and Cosmetic… / Subchapter Vii—General AuthorityTitle 21PartPart F—National Uniformity for Nonprescription Drugs and Preemption for Labeling or Packaging of CosmeticsContents§ 379r. National uniformity for nonprescription drugs§ 379s. Preemption for labeling or packaging of cosmetics