<p>Just found this on the SCA FAQ site:</p>
<p>Are all SCA materials due on the deadline date or post-marked by the deadline date?
All application materials must be post-marked by the deadline date. If all requested material is not post-marked by the deadline, an applicant will no longer be guaranteed that the admission committee will review his/her file.</p>
<p>See! You have nothing to worry about! :)</p>