ng]" src="../../../../../../doc/src/images/warning.png"></td>
<th align="left">Warning</th>
</tr>
<tr><td align="left" valign="top"><p>
          These requirements may undergo non-backward compatible changes in subsequent
          versions.
        </p></td></tr>
</table></div>
<h5>
<a name="beast.concepts.RatePolicy.h1"></a>
        <span class="phrase"><a name="beast.concepts.RatePolicy.requirements"></a></span><a class="link" href="RatePolicy.html#beast.concepts.RatePolicy.requirements">Requirements</a