Isn't that annoying, though? It really bugs me that APs are only counted if your college counted them. It's a standardized exam. If Bob and I both take the same exam at the same time and get the same score, how is it remotely appropriate that Bob will be able to report that and I would not?
My school did the double whammy of letting you use APs to qualify to take their own entrance exams to test out of intro courses, but not putting them on the transcript...so I tested out of some intros, but got no credit and was not allowed to retake them. For example, I tested out of Calc 1 and 2. I was therefore not allowed to take those courses, and would have had to start with multivariable and above, which I did not want to do. However, my transcript makes it look as if I took only 1 math class, ever. I never took any intro Bios, as far as my transcript is concerned. And because I tested out of 1 semester of gen chem and there are only 2 total...well, I'm deficient on that front if they care to look closely (they likely won't as I was a chem major, even though all of my upper levels were organic which apparently counts as a separate prereq category).
Anyway, I just find the whole situation annoying. If people are going to be able to report APs as prereq fulfillment (not GPA), everyone should be able to do so. Relying on individual college policies is complete BS.