Prerequisite for Advanced Standing Exams (ASE)?

So you don’t even have to have taken the class (although if you don’t prepare, the ASE is a waste of time).

Usually there are multiple days set aside for the ASE during August Orientation period. You don’t have to petition, you just have to show up. Usually this was like one day for Calculus/the Math Dept. (18.01, 18.02, 18.03, etc.), one day for the Physics Dept. (8.01, 8.02, 8.03, etc.), and so on. Observe here: http://uaap.mit.edu/countdown-placement-examinations-testing

From recent years, one could just show up at the right place (usually Walker?) at the right time with writing utensil for 18.01, 18.02, 8.01, 8.02.

For 7.01x and 5.11x, you did have to fill in an online form to write the test.

Beyond that, you can do ASE’s for 18.03, 18.06, and petition the appropriate department (e.g., Chemistry for 5.12, 5.13, 5.60; Physics for 8.03, 8.04, 8.033) for more advanced subjects.

Additionally, you can ASE during IAP.

But really, don’t worry about this.