<p>I know it's "due" May 1st, but is that postmarked May 1st or do they have to receive it by May 1st?</p>
<p>Postmarked. They are pretty liberal about receiving them.</p>
<p>I know it's "due" May 1st, but is that postmarked May 1st or do they have to receive it by May 1st?</p>
<p>Postmarked. They are pretty liberal about receiving them.</p>