At LSU, students with ADD/ADHD can get classified as "disabled" with the office of disability services. Therefore, they get scheduling priority. Which makes no sense at all, but I knew of many people who always got the "good" classes because of their ADD.

extra time on tests
calcuaters on tests
test in other rooms
able to tape record lectures

At my school, there's a counselor that works with students that have ADD, ADHD, and Learning Disabilities. There are several options that she offers:

(a.) Extra time on tests
(b.) Tests given by the teacher speaking the questions and the student gives the answer.
(c.) Extra tutoring.

Those are just a few. I don't know the others off the top of my head. Colleges usually accomadate those with ADD and ADHD but you usually have to have it documented by a doctor and the counselor has to have the documentation on file.