CFR›Title 21›Chapter I›Part 133 ContainsSubparts A–BCorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 PART 133—CHEESES AND RELATED CHEESE PRODUCTS Subparts A Subpart A—General Provisions Sections 133.3–133.10 B Subpart B—Requirements for Specific Standardized Cheese and Related Products Sections 133.102–133.196 Authority21 U.S.C. 321, 341, 343, 348, 371, 379e. Previous 131 Part 131—Milk and Cream Next 135 Part 135—Frozen Desserts