Some circumstances may make it necessary for an individual student or a group of students to test late. To preserve the security of AP Exams, College Board develops alternate forms of each exam for late testing. The exam forms used for regularly scheduled exams can’t be 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 scheduled times. See 2021 Late-Testing Dates for more details.
Under no circumstances is early testing permitted. If a school fails to follow AP security procedures and doesn’t administer the alternate exams on the specified dates at the specified times, scores for those exams are canceled.