<< Back to Ingredient Resource Center Butter, Butteroil, AMF, and Cream Butter U.S. Standards for Grades of Butter 21 U.S. Code 321a: Butter Defined 21 CFR Part 101.4: Ingredient Names 21 CFR Part 101.67: Nutrient Content Claims Manufacturers Suppliers Butteroil and Anhydrous Milkfat 7 CFR Part 58.347 Butteroil Manufacturers AMF Manufacturers Butteroil Suppliers AMF Suppliers Cream 21 CFR Part 131 Manufacturers Suppliers