Retrieved March 26, 2013. ↑ "Kraft Foods Corporate Timeline" (PDF). Kraft Foods Group, Inc. Retrieved March 26, 2013. ↑ US Code of Federal Regulations Title 21 (Food and Drugs), Subchapter B, Part 133, Section 169-173 (Pasteurized processed cheese), the allowed usage of the term "American cheese" for certain types of "Pasteurized processed cheese" is detailed.U.S. Food and Drug Administration (April 1, 1999), Title 21, Subchapter B, Part 133, U.S. Government Printing Office, Paragraph (e)(2)(ii) of section 133.169, archived from the original on February 17, 2007, retrieved February 17, 2007, In case it is made of cheddar cheese, washed curd cheese, colby cheese, or granular cheese or any mixture of two or more of these, it may be designated "Pasteurized process American cheese"; or when cheddar cheese, washed curd cheese, Colby cheese, granular cheese, or any mixture of two or more of these is combined with other varieties of cheese in the cheese ingredient, any of such cheeses or such mixture may be designated as "American cheese." ↑ Carić, M.; Kaláb, M. (1993).