<p>does everyone take the same exact ACT in the same exact day</p>
<p>pretty much… I think there are a few trial ACTs mixed in.</p>
<p>There are several test dates throughout the school year, and each one has a different version of the ACT. Every test taken on the same day, however, has the same version as far as I know.</p>
<p>Aside from regular dates, there are rescheduled test dates and non-national test dates that people take (my school offers a test at the end of April).</p>