How do I figure out what my credit card purchase is classified as?

I am hoping to get something out of Yahoo! Answers.. does anyone know the answer to this question?

How can I see what a purchase on my credit card was classified as? i.e. what counts as a "fast food eatery"
On the Chase Freedom card you get 3% Cash Back on "quick eatery" classified purchases, but this requires a vendor such as Starbucks to list themselves as such with the credit card company. How do you view what the various vendors that you purchased from are classified as?