<p>I don’t know that it’s mandatory to sign up by May 1, but you should really register ASAP. Sessions DO fill up. Check out the site below, and PAY ATTENTION to the lists of what you should do before you go (including taking the math placement test), as well as the lists of what to bring. You wouldn’t believe the number of students who every year claim that they never knew that they needed to bring sheets to orientation, that they needed to take the math placement test, that they needed to get a student ID, etc. etc. (D2 has been working for the Orientation office since midway through freshman year and has seen/heard it all).</p>