LIMITATION.

SEC. 872. LIMITATION. (a) Amendment.—Section 1006(a) of the Controlled Substances Import and Export Act (21 U.S.C. 956(a)) is amended— (1) by striking “The Attorney General” and inserting “(1) Subject to paragraph (2), the Attorney General”; and (2) by adding at the end the following: “(2) Notwithstanding any exemption under paragraph (1), a United States resident who enters the United States through an international land border with a controlled substance (except a substance in schedule I) for which the individual does not possess a valid prescription issued by a practitioner (as defined in section 102 of the Controlled Substances Act (21 U.S.C. 802)) in accordance with applicable Federal and State law (or documentation that verifies the issuance of such a prescription to that individual) may not import the controlled substance into the United States in an amount that exceeds 50 dosage units of the controlled substance.”. (b) Federal Minimum Requirement.—Section 1006(a)(2) of the Controlled Substances Import and Export Act, as added by subsection (a), is a minimum Federal requirement and shall not be construed to limit a State from imposing any additional requirement. (c) Extent.—The amendment made by subsection (a) shall not be construed to affect the jurisdiction of the Secretary of Health and Human Services under the Federal Food, Drug and Cosmetic Act (21 U.S.C. 301 et seq.).