What is the Residual ACT?

When talking about ACT test dates, most of the time people are referring to its national test date. The ACT has six national test dates each year. However, if a student is not able to take it one of these dates, there is another option. The residual ACT can be taken at ACT-participating colleges for students that are enrolled, admitted, or plan to attend that college. Students who take the ACT on