AP: Advanced Placement: 38 courses in a wide variety of subject areas that colleges may accept for credit. Categories are: AP Research and Seminar, Arts, English, History and Social Science, Math and Computer Science, Sciences, and World Languages and Cultures.
CLEP: College Level Entrance Program Exams that some colleges will accept for 3 or more units of credit each, in the following categories: Composition and Literature, World Languages, History and Social Sciences, Science and Mathematics, and Business.