Quick search by citation:

21 U.S. Code Chapter 6 - NARCOTIC DRUGS

IMPORTATION OR EXPORTATION
MARIHUANA AND HEALTH REPORTING
DOMESTIC CONTROL OF PRODUCTION AND DISTRIBUTION OF THE OPIUM POPPY
IMPORTATION BY CHINESE SUBJECTS OR TRAFFICKING IN, IN CHINA, BY UNITED STATES CITIZENS
MISCELLANEOUS
  1. IMPORTATION OR EXPORTATION (§§ 171 – 176)
  2. MARIHUANA AND HEALTH REPORTING (§ 186)
  3. DOMESTIC CONTROL OF PRODUCTION AND DISTRIBUTION OF THE OPIUM POPPY (§ 188)
  4. IMPORTATION BY CHINESE SUBJECTS OR TRAFFICKING IN, IN CHINA, BY UNITED STATES CITIZENS (§ 191)
  5. MISCELLANEOUS (§§ 196 – 200)
Executive Documents
Executive Order No. 10302

Ex. Ord. No. 10302, Nov. 5, 1951, 16 F.R. 11257, formerly set out as a note preceding section 171, which established the Interdepartmental Committee on Narcotics, was revoked by Ex. Ord. No. 11529, Apr. 24, 1970, 35 F.R. 6697.