"Under the US Code of Federal Regulations Title 21 (Food and Drugs), Article 133, Section 169 (Pasteurized processed cheese), the allowed usage of the term "American cheese" for certain types of "Pasteurized processed cheese" is detailed. Specifically, in paragraph (e)(2)(ii) of section 133.169, it states 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 processed 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.""