Early testing or testing at times other than those published by College Board is not permitted under any circumstances. Late-testing dates are available if students cannot test during the first two full weeks of May. Occasionally, circumstances make it necessary for students to test late. To preserve the security of AP Exams, alternate versions of the exams are used for late testing. All students who participate in late testing at a given school must take these alternate exams on the scheduled late-testing dates at the below scheduled times.