CFR›Title 9›Chapter III›9 CFR Part 424 Citation9 CFR Part 424ContainsSubparts Subpart A–Subpart CCorpusDaily eCFRDisplayed edition2026-09-25Last updated2026-09-25 PART 424—PREPARATION AND PROCESSING OPERATIONS Subparts Subpart A Subpart A—General Subpart C Subpart C—Food Ingredients and Sources of Radiation Authority7 U.S.C. 1633, 1901-1906; 21 U.S.C. 451-472, 601-695; 7 CFR 2.18, 2.53.Source64 FR 72175, Dec. 23, 1999, unless otherwise noted.