<p>Do the words “must be submitted by december 1st” mean that it has to be mailed by december first or that it has to be received by then?</p>
<p>postmarked</p>
<p>Do the words “must be submitted by december 1st” mean that it has to be mailed by december first or that it has to be received by then?</p>
<p>postmarked</p>