One must wait six hours to eat meat after eating cheese that is aged for six months or longer. The following are a few of the more popular aged cheeses that are aged for six months: Dry Monterey Jack, Cheddar (Medium, Sharp and Aged), Marble Cheese, Parmesan, and Picante Provolone.
For the complete list, please see OUKosher.org’s Aged Cheese List.