CFR›Title 21›Chapter I›21 CFR Part 121 Citation21 CFR Part 121ContainsSubparts Subpart A–Subpart ECorpusDaily eCFRDisplayed edition2026-08-04Last updated2026-08-04 PART 121—MITIGATION STRATEGIES TO PROTECT FOOD AGAINST INTENTIONAL ADULTERATION Subparts Subpart A Subpart A—General Provisions Subpart B Subpart B—Reserved Subpart C Subpart C—Food Defense Measures Subpart D Subpart D—Requirements Applying to Records That Must Be Established and Maintained Subpart E Subpart E—Compliance Authority21 U.S.C. 331, 342, 350g, 350(i), 371, 374.Source81 FR 34219, May 27, 2016, unless otherwise noted.