<p>I realize that to submit the Arts Supplement for Stanford, the common app and Stanford supplement have both to be submitted by the 15th.</p>
<p>But, I haven't been able to find reference of whether or not the actual Arts supplement itself should be submitted (and received) by Stanford by the deadline, or if it's fine to have the arts supplement just postmarked by the 15th.</p>
<p>They used to require it to be received by the due date. Apparently they changed it to "postmarked". If I was sending it, I'd mail it overnight with tracking.</p>