CFR›Title 21›Chapter I›Part 332›21 CFR Part 332 Subpart C Citation21 CFR Part 332 Subpart CContainsSections § 332.30–§ 332.31CorpusDaily eCFRDisplayed edition2026-10-02Last updated2026-10-02 Subpart C—Labeling Sections § 332.30 § 332.30 Labeling of antiflatulent drug products. § 332.31 § 332.31 Professional labeling. Authority21 U.S.C. 321, 351, 352, 353, 355, 360, 371.Source39 FR 19877, June 4, 1974, unless otherwise noted. Previous B Subpart B—Active Ingredients