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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">As filed with the Securities and Exchange Commission on
May&nbsp;14, 2008</font></b></p>

<p align="right" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:right;text-autospace:none;vertical-align:baseline;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Registration
No.&nbsp;333-</font></b></p>

<p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;text-indent:6.0in;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<div style="border:none;border-top:double windowtext 6.0pt;padding:0in 0in 0in 0in;">

<p style="border:none;margin:0in 0in .0001pt;padding:0in;punctuation-wrap:simple;text-autospace:none;text-indent:6.0in;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

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<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">UNITED
STATES</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">SECURITIES
AND EXCHANGE COMMISSION</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Washington, D.C.&#160; 20549</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<div align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><hr size="1" width="25%" noshade color="black" align="center"></div>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">FORM&nbsp;S-8</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">REGISTRATION STATEMENT</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">UNDER</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">THE SECURITIES ACT OF 1933</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">ZENITH
NATIONAL INSURANCE CORP.</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Exact Name of Registrant as Specified in Its Charter)</font></p>

<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<div align="center">

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
 <tr>
  <td width="49%" valign="top" style="padding:0in 0in 0in 0in;width:49.0%;">
  <p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Delaware</font></b><font size="2" style="font-size:10.0pt;">  </font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
  <p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
  <td width="49%" valign="top" style="padding:0in 0in 0in 0in;width:49.0%;">
  <p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">95-2702776</font></b><font size="2" style="font-size:10.0pt;">  </font></p>
  </td>
 </tr>
 <tr>
  <td width="49%" valign="top" style="padding:0in 0in 0in 0in;width:49.0%;">
  <p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(State or Other Jurisdiction of Incorporation or <br>
  Organization)</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
  <p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
  <td width="49%" valign="top" style="padding:0in 0in 0in 0in;width:49.0%;">
  <p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(I.R.S. Employer Identification No.)</font></p>
  </td>
 </tr>
</table>

</div>

<p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">21255
Califa Street</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Woodland
Hills, California 91367</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Address of Principal Executive Offices) (Zip Code)</font></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Zenith
National Insurance Corp. 2004 Restricted Stock Plan</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Full Title of the Plan)</font></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Michael
E. Jansen</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Executive
Vice President and General Counsel</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Zenith
National Insurance Corp.</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">21255
Califa Street</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Woodland
Hills, California 91367</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Name and Address Of Agent For Service)</font></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">(818)
713-1000</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Telephone Number, Including Area Code, Of Agent For
Service)</font></p>

<p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Indicate by check
mark whether the registrant is a large accelerated filer, an accelerated filer,
a non-accelerated filer, or a smaller reporting company.&#160; See the definition of &#147;large accelerated
filer,&#148; &#147;accelerated filer&#148; and &#147;smaller reporting company&#148; in Rule&nbsp;12b-2
of the Exchange Act.</font></p>

<p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<div align="center">

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
 <tr>
  <td width="14%" valign="top" style="padding:0in 0in 0in 0in;width:14.42%;">
  <p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="51%" valign="top" style="padding:0in 0in 0in 0in;width:51.66%;">
  <p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Large
  accelerated filer </font><font size="2" face="Wingdings" style="font-size:10.0pt;">x</font></p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.58%;">
  <p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.34%;">
  <p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Accelerated
  filer </font><font size="2" face="Wingdings" style="font-size:10.0pt;">&#168;</font></p>
  </td>
 </tr>
 <tr>
  <td width="14%" valign="top" style="padding:0in 0in 0in 0in;width:14.42%;">
  <p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="51%" valign="top" style="padding:0in 0in 0in 0in;width:51.66%;">
  <p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Non-accelerated
  filer </font><font size="2" face="Wingdings" style="font-size:10.0pt;">&#168;</font><font size="2" style="font-size:10.0pt;"> (Do not check if smaller reporting
  company)</font></p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.58%;">
  <p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.34%;">
  <p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Smaller
  reporting company </font><font size="2" face="Wingdings" style="font-size:10.0pt;">&#168;</font></p>
  </td>
 </tr>
</table>

</div>

<p style="margin:0in 0in .0001pt 1.0in;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">CALCULATION
OF REGISTRATION FEE</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<table border="1" cellspacing="0" cellpadding="0" width="100%" style="border:none;border-collapse:collapse;width:100.0%;">
 <tr>
  <td width="32%" valign="bottom" style="border-bottom:solid windowtext 1.0pt;border-left:none;border-right:none;border-top:double windowtext 1.5pt;padding:0in 0in 0in 0in;width:32.5%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Title&nbsp;of&nbsp;securities<br>
  to&nbsp;be&nbsp;registered</font></b></p>
  </td>
  <td width="1%" valign="bottom" style="border-bottom:solid windowtext 1.0pt;border-left:none;border-right:none;border-top:double windowtext 1.5pt;padding:0in 0in 0in 0in;width:1.9%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
  <td width="10%" valign="bottom" style="border-bottom:solid windowtext 1.0pt;border-left:none;border-right:none;border-top:double windowtext 1.5pt;padding:0in 0in 0in 0in;width:10.88%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Amount&nbsp;to&nbsp;<br>
  be&nbsp;registered</font></b></p>
  </td>
  <td width="1%" valign="bottom" style="border-bottom:solid windowtext 1.0pt;border-left:none;border-right:none;border-top:double windowtext 1.5pt;padding:0in 0in 0in 0in;width:1.68%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
  <td width="17%" colspan="2" valign="bottom" style="border-bottom:solid windowtext 1.0pt;border-left:none;border-right:none;border-top:double windowtext 1.5pt;padding:0in 0in 0in 0in;width:17.92%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Proposed&nbsp;maximum&nbsp;<br>
  offering&nbsp;price&nbsp;per&nbsp;share&nbsp;(1)</font></b></p>
  </td>
  <td width="1%" valign="bottom" style="border-bottom:solid windowtext 1.0pt;border-left:none;border-right:none;border-top:double windowtext 1.5pt;padding:0in 0in 0in 0in;width:1.66%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
  <td width="19%" colspan="2" valign="bottom" style="border-bottom:solid windowtext 1.0pt;border-left:none;border-right:none;border-top:double windowtext 1.5pt;padding:0in 0in 0in 0in;width:19.1%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Proposed&nbsp;maximum&nbsp;<br>
  aggregate&nbsp;offering&nbsp;price(1)</font></b></p>
  </td>
  <td width="1%" valign="bottom" style="border-bottom:solid windowtext 1.0pt;border-left:none;border-right:none;border-top:double windowtext 1.5pt;padding:0in 0in 0in 0in;width:1.38%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
  <td width="11%" colspan="2" valign="bottom" style="border-bottom:solid windowtext 1.0pt;border-left:none;border-right:none;border-top:double windowtext 1.5pt;padding:0in 0in 0in 0in;width:11.92%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Amount&nbsp;of&nbsp;<br>
  registration&nbsp;fee(1)</font></b></p>
  </td>
  <td width="1%" valign="bottom" style="border-bottom:solid windowtext 1.0pt;border-left:none;border-right:none;border-top:double windowtext 1.5pt;padding:0in 0in 0in 0in;width:1.06%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
 </tr>
 <tr>
  <td width="32%" valign="top" style="border:none;border-bottom:double windowtext 1.5pt;padding:0in 0in 0in 0in;width:32.5%;">
  <p style="margin:0in 0in .0001pt 10.0pt;text-indent:-10.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Common Stock, par <br>
  value $1.00 per share</font></p>
  </td>
  <td width="1%" valign="bottom" style="border:none;border-bottom:double windowtext 1.5pt;padding:0in 0in 0in 0in;width:1.9%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="10%" valign="bottom" style="border:none;border-bottom:double windowtext 1.5pt;padding:0in 0in 0in 0in;width:10.88%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">370,000(2</font></p>
  </td>
  <td width="1%" valign="bottom" style="border:none;border-bottom:double windowtext 1.5pt;padding:0in 0in 0in 0in;width:1.68%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">)</font></p>
  </td>
  <td width="1%" valign="bottom" style="border:none;border-bottom:double windowtext 1.5pt;padding:0in 0in 0in 0in;width:1.3%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">$</font></p>
  </td>
  <td width="16%" valign="bottom" style="border:none;border-bottom:double windowtext 1.5pt;padding:0in 0in 0in 0in;width:16.62%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">38.68</font></p>
  </td>
  <td width="1%" valign="bottom" style="border:none;border-bottom:double windowtext 1.5pt;padding:0in 0in 0in 0in;width:1.66%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="1%" valign="bottom" style="border:none;border-bottom:double windowtext 1.5pt;padding:0in 0in 0in 0in;width:1.3%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">$</font></p>
  </td>
  <td width="17%" valign="bottom" style="border:none;border-bottom:double windowtext 1.5pt;padding:0in 0in 0in 0in;width:17.8%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">14,311,600</font></p>
  </td>
  <td width="1%" valign="bottom" style="border:none;border-bottom:double windowtext 1.5pt;padding:0in 0in 0in 0in;width:1.38%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="1%" valign="bottom" style="border:none;border-bottom:double windowtext 1.5pt;padding:0in 0in 0in 0in;width:1.3%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">$</font></p>
  </td>
  <td width="10%" valign="bottom" style="border:none;border-bottom:double windowtext 1.5pt;padding:0in 0in 0in 0in;width:10.62%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">562.45</font></p>
  </td>
  <td width="1%" valign="bottom" style="border:none;border-bottom:double windowtext 1.5pt;padding:0in 0in 0in 0in;width:1.06%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr height="0">
  <td width="242" style="border:none;"></td>
  <td width="13" style="border:none;"></td>
  <td width="80" style="border:none;"></td>
  <td width="11" style="border:none;"></td>
  <td width="10" style="border:none;"></td>
  <td width="130" style="border:none;"></td>
  <td width="11" style="border:none;"></td>
  <td width="9" style="border:none;"></td>
  <td width="131" style="border:none;"></td>
  <td width="9" style="border:none;"></td>
  <td width="10" style="border:none;"></td>
  <td width="85" style="border:none;"></td>
  <td width="7" style="border:none;"></td>
 </tr>
</table>

<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(1)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; Estimated solely for purposes of
calculating the registration fee pursuant to Rules&nbsp;457(c)&nbsp;and (h)&nbsp;under
the Securities Act of 1933, as amended (the &#147;Securities Act&#148;), on the basis of
the average of the high and low sale prices for a share of Common Stock of
Zenith National Insurance Corp. (&#147;Common Stock&#148;) on the New York Stock Exchange
on May&nbsp;12, 2008.</font></p>

<p style="margin:0in 1.0in .0001pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(2)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; Plus such additional number of shares
of Common Stock as may be issuable pursuant to the antidilution provisions of
the Zenith National Insurance Corp. 2004 Restricted Stock Plan.</font></p>

<div style="border:none;border-bottom:double windowtext 6.0pt;padding:0in 0in 0in 0in;">

<p style="border:none;margin:0in 0in .0001pt;padding:0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

</div>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<div style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>

</div>
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<div>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">REGISTRATION OF ADDITIONAL SECURITIES</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;text-indent:.25in;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Pursuant to a Registration
Statement on Form&nbsp;S-8, Registration Number 333-115902, filed on May&nbsp;26,
2004, Zenith National Insurance Corp. (the &#147;Registrant&#148;) registered 250,000
shares of its common stock, $1.00 par value per share (the &#147;Common Stock&#148;), to
be offered under the Third Amended and Restated Zenith National Insurance Corp.
2004 Restricted Stock Plan, as amended and restated May&nbsp;13, 2008 (the &#147;Plan&#148;).&#160; In connection with a three-for-two stock
split in the form of a stock dividend effected in October&nbsp;2005, the number
of shares of Common Stock initially authorized to be offered under the Plan was
automatically increased pursuant to the terms of the Plan by 125,000 shares to
a total of 375,000 shares of Common Stock.&#160;
Pursuant to a Registration Statement on Form&nbsp;S-8, Registration
Number 333-134531, filed on May&nbsp;26, 2006, the Registrant registered an
additional 250,000 shares of Common Stock, to be offered under the Plan,
resulting in a total of 625,000 shares being heretofore registered.</font></p>

<p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;text-indent:.25in;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Pursuant to General
Instruction E of Form&nbsp;S-8, this Registration Statement on Form&nbsp;S-8
(this &#147;Registration Statement&#148;) is being filed to register an additional
370,000 shares of Common Stock that may be issued under the Plan.&#160; The contents of the Registrant&#146;s registration
statements on Form&nbsp;S-8, Registration Number 333-115902 and Registration
Number 333-134531, are hereby incorporated by reference into this Registration
Statement.</font></p>

<p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">EXHIBITS</font></p>

<p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<table border="0" cellspacing="0" cellpadding="0" width="86%" style="border-collapse:collapse;margin-left:1.0in;width:86.66%;">
 <tr>
  <td width="10%" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:10.28%;">
  <p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Exhibit&nbsp;No.</font></b></p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.94%;">
  <p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><b><font size="1" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
  <td width="87%" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:87.78%;">
  <p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Description</font></b></p>
  </td>
 </tr>
 <tr>
  <td width="10%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:10.28%;">
  <p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4.1</font></p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.94%;">
  <p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="87%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:87.78%;">
  <p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Third Amended and Restated Zenith National Insurance Corp. 2004
  Restricted Stock Plan (as amended and restated May&nbsp;13, 2008)
  (Exhibit&nbsp;10.1 to the Registrant&#146;s Current Report on Form&nbsp;8-K filed
  May&nbsp;13, 2008 is incorporated herein by reference)</font></p>
  </td>
 </tr>
 <tr>
  <td width="10%" valign="top" style="padding:0in 0in 0in 0in;width:10.28%;">
  <p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.94%;">
  <p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="87%" valign="top" style="padding:0in 0in 0in 0in;width:87.78%;">
  <p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="10%" valign="top" style="padding:0in 0in 0in 0in;width:10.28%;">
  <p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">5.1</font></p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.94%;">
  <p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="87%" valign="top" style="padding:0in 0in 0in 0in;width:87.78%;">
  <p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Opinion of Michael E. Jansen, Executive Vice President and General
  Counsel of Zenith National Insurance Corp., regarding the legality of the
  securities being registered</font></p>
  </td>
 </tr>
 <tr>
  <td width="10%" valign="top" style="padding:0in 0in 0in 0in;width:10.28%;">
  <p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.94%;">
  <p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="87%" valign="top" style="padding:0in 0in 0in 0in;width:87.78%;">
  <p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="10%" valign="top" style="padding:0in 0in 0in 0in;width:10.28%;">
  <p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">23.1</font></p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.94%;">
  <p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="87%" valign="top" style="padding:0in 0in 0in 0in;width:87.78%;">
  <p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Consent of PricewaterhouseCoopers LLP, independent registered public
  accounting firm</font></p>
  </td>
 </tr>
 <tr>
  <td width="10%" valign="top" style="padding:0in 0in 0in 0in;width:10.28%;">
  <p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.94%;">
  <p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="87%" valign="top" style="padding:0in 0in 0in 0in;width:87.78%;">
  <p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="10%" valign="top" style="padding:0in 0in 0in 0in;width:10.28%;">
  <p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">23.2</font></p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.94%;">
  <p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="87%" valign="top" style="padding:0in 0in 0in 0in;width:87.78%;">
  <p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Consent of Michael E. Jansen (included in his opinion filed as
  Exhibit&nbsp;5.1)</font></p>
  </td>
 </tr>
</table>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">2</font></p>

<div style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>

</div>
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<div style="font-family:Times New Roman;">

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">SIGNATURES</font></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;text-indent:1.0in;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Pursuant to the requirements of the Securities Act of 1933, the
Registrant certifies that it has reasonable grounds to believe that it meets
all of the requirements for filing on Form&nbsp;S-8 and has duly caused this
Registration Statement to be signed on its behalf by the undersigned, thereunto
duly authorized, in the City of Los Angeles, State of California, on this 14</font><font size="1" style="font-size:7.0pt;position:relative;top:-3.0pt;">th</font><font size="2" style="font-size:10.0pt;">&#160;day of May&nbsp;2008.</font></p>

<p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;text-indent:1.0in;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
 <tr>
  <td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
  <p style="margin:0in -.25in .0001pt 0in;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="50%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
  <p style="margin:0in -.25in .0001pt 0in;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">ZENITH NATIONAL INSURANCE CORP.</font></p>
  </td>
 </tr>
 <tr>
  <td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
  <p style="margin:0in -.25in .0001pt 0in;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="50%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
  <p style="margin:0in -.25in .0001pt 0in;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
  <p style="margin:0in -.25in .0001pt 0in;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="50%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
  <p style="margin:0in -.25in .0001pt 0in;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
  <p style="margin:0in -.25in .0001pt 0in;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.16%;">
  <p style="margin:0in -.25in .0001pt 0in;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">By:</font></p>
  </td>
  <td width="46%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:46.84%;">
  <p style="margin:0in -.25in .0001pt 0in;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ Stanley R. Zax</font></p>
  </td>
 </tr>
 <tr>
  <td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
  <p style="margin:0in -.25in .0001pt 0in;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.16%;">
  <p style="margin:0in -.25in .0001pt 0in;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="46%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:46.84%;">
  <p style="margin:0in -.25in .0001pt 0in;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Stanley R. Zax</font></p>
  </td>
 </tr>
 <tr>
  <td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
  <p style="margin:0in -.25in .0001pt 0in;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.16%;">
  <p style="margin:0in -.25in .0001pt 0in;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="46%" valign="top" style="padding:0in 0in 0in 0in;width:46.84%;">
  <p style="margin:0in -.25in .0001pt 0in;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Chairman of the Board and
  President</font></p>
  </td>
 </tr>
</table>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">3</font></p>

<div style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>

</div>
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<br clear="all" style="page-break-before:always;">


<div>

<p style="margin:0in 0in .0001pt .5in;punctuation-wrap:simple;text-autospace:none;text-indent:2.75in;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">POWER OF ATTORNEY AND
SIGNATURES</font></p>

<p align="center" style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-align:center;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;text-indent:1.0in;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Each person whose signature appears below constitutes and appoints each
of Stanley R. Zax and Michael E. Jansen, signing singly, his or her true and
lawful attorney-in-fact and agent with full power of substitution and
resubstitution, for him or her and in his or her name, place and stead, in any
and all capacities, to sign any or all amendments (including post-effective
amendments) to this Registration Statement, and to file the same, with all
exhibits thereto, and other documents in connection therewith, with the
Securities and Exchange Commission, granting unto said attorney-in-fact and
agent full power and authority to do and perform each and every act and thing
requisite and necessary to be done in and about the premises, as fully to all
intents and purposes as he or she might or could do in person, hereby ratifying
and confirming all that said attorney-in-fact or his substitute or substitutes,
may lawfully do or cause to be done by virtue hereof.</font></p>

<p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;text-indent:1.0in;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;text-indent:1.0in;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Pursuant to the requirements
of the Securities Act of 1933, this Registration Statement has been signed by
the following persons in the capacities indicated, on May&nbsp;14, 2008.</font></p>

<p style="margin:0in 0in .0001pt;punctuation-wrap:simple;text-autospace:none;vertical-align:baseline;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<table border="0" cellspacing="0" cellpadding="0" width="86%" style="border-collapse:collapse;margin-left:.5in;width:86.66%;">
 <tr>
  <td width="30%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:30.08%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ Stanley R. Zax</font></p>
  </td>
  <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="65%" valign="top" style="padding:0in 0in 0in 0in;width:65.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Chairman
  of the Board, President and Director </font></p>
  </td>
 </tr>
 <tr>
  <td width="30%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:30.08%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Stanley R. Zax</font></p>
  </td>
  <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="65%" valign="top" style="padding:0in 0in 0in 0in;width:65.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Principal
  Executive Officer)</font></p>
  </td>
 </tr>
 <tr>
  <td width="30%" valign="top" style="padding:0in 0in 0in 0in;width:30.08%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="65%" valign="top" style="padding:0in 0in 0in 0in;width:65.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="30%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:30.08%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ Kari L. Van Gundy</font></p>
  </td>
  <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="65%" valign="top" style="padding:0in 0in 0in 0in;width:65.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Senior
  Vice President and Chief Financial Officer </font></p>
  </td>
 </tr>
 <tr>
  <td width="30%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:30.08%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Kari L. Van Gundy</font></p>
  </td>
  <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="65%" valign="top" style="padding:0in 0in 0in 0in;width:65.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Principal
  Accounting Officer)</font></p>
  </td>
 </tr>
 <tr>
  <td width="30%" valign="top" style="padding:0in 0in 0in 0in;width:30.08%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="65%" valign="top" style="padding:0in 0in 0in 0in;width:65.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="30%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:30.08%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ Max M. Kampelman</font></p>
  </td>
  <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="65%" valign="top" style="padding:0in 0in 0in 0in;width:65.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Director</font></p>
  </td>
 </tr>
 <tr>
  <td width="30%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:30.08%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Max M. Kampelman</font></p>
  </td>
  <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="65%" valign="top" style="padding:0in 0in 0in 0in;width:65.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="30%" valign="top" style="padding:0in 0in 0in 0in;width:30.08%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="65%" valign="top" style="padding:0in 0in 0in 0in;width:65.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="30%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:30.08%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ Robert J. Miller</font></p>
  </td>
  <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="65%" valign="top" style="padding:0in 0in 0in 0in;width:65.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Director</font></p>
  </td>
 </tr>
 <tr>
  <td width="30%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:30.08%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Robert J. Miller</font></p>
  </td>
  <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="65%" valign="top" style="padding:0in 0in 0in 0in;width:65.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="30%" valign="top" style="padding:0in 0in 0in 0in;width:30.08%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="65%" valign="top" style="padding:0in 0in 0in 0in;width:65.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="30%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:30.08%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ Leon E. Panetta</font></p>
  </td>
  <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="65%" valign="top" style="padding:0in 0in 0in 0in;width:65.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Director</font></p>
  </td>
 </tr>
 <tr>
  <td width="30%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:30.08%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Leon E. Panetta</font></p>
  </td>
  <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="65%" valign="top" style="padding:0in 0in 0in 0in;width:65.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="30%" valign="top" style="padding:0in 0in 0in 0in;width:30.08%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="65%" valign="top" style="padding:0in 0in 0in 0in;width:65.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="30%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:30.08%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ Catherine B<b>. </b>Reynolds</font></p>
  </td>
  <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="65%" valign="top" style="padding:0in 0in 0in 0in;width:65.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Director</font></p>
  </td>
 </tr>
 <tr>
  <td width="30%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:30.08%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Catherine B<b>. </b>Reynolds</font></p>
  </td>
  <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="65%" valign="top" style="padding:0in 0in 0in 0in;width:65.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="30%" valign="top" style="padding:0in 0in 0in 0in;width:30.08%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="65%" valign="top" style="padding:0in 0in 0in 0in;width:65.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="30%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:30.08%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ Alan I. Rothenberg</font></p>
  </td>
  <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="65%" valign="top" style="padding:0in 0in 0in 0in;width:65.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Director</font></p>
  </td>
 </tr>
 <tr>
  <td width="30%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:30.08%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Alan I. Rothenberg</font></p>
  </td>
  <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="65%" valign="top" style="padding:0in 0in 0in 0in;width:65.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="30%" valign="top" style="padding:0in 0in 0in 0in;width:30.08%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="65%" valign="top" style="padding:0in 0in 0in 0in;width:65.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="30%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:30.08%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ William S. Sessions</font></p>
  </td>
  <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="65%" valign="top" style="padding:0in 0in 0in 0in;width:65.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Director</font></p>
  </td>
 </tr>
 <tr>
  <td width="30%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:30.08%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">William S. Sessions</font></p>
  </td>
  <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="65%" valign="top" style="padding:0in 0in 0in 0in;width:65.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="30%" valign="top" style="padding:0in 0in 0in 0in;width:30.08%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="65%" valign="top" style="padding:0in 0in 0in 0in;width:65.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="30%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:30.08%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ Gerald Tsai,&nbsp;Jr.</font></p>
  </td>
  <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="65%" valign="top" style="padding:0in 0in 0in 0in;width:65.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Director</font></p>
  </td>
 </tr>
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  <td width="30%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:30.08%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Gerald Tsai,&nbsp;Jr.</font></p>
  </td>
  <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="65%" valign="top" style="padding:0in 0in 0in 0in;width:65.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="30%" valign="top" style="padding:0in 0in 0in 0in;width:30.08%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="65%" valign="top" style="padding:0in 0in 0in 0in;width:65.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="30%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:30.08%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ Michael Wm. Zavis</font></p>
  </td>
  <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="65%" valign="top" style="padding:0in 0in 0in 0in;width:65.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Director</font></p>
  </td>
 </tr>
 <tr>
  <td width="30%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:30.08%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Michael Wm. Zavis</font></p>
  </td>
  <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="65%" valign="top" style="padding:0in 0in 0in 0in;width:65.58%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
 </tr>
</table>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4</font></p>

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{"company-data": {"conformed-name": "ZENITH NATIONAL INSURANCE CORP", "cik": "0000109261", "assigned-sic": "6331", "irs-number": "952702776", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-150908", "film-number": "08831647"}, "business-address": {"street1": "21255 CALIFA ST", "city": "WOODLAND HILLS", "state": "CA", "zip": "91367", "phone": "8187131000"}}
As filed with the Securities and Exchange Commission on
May 14, 2008
Registration
No. 333-
UNITED
STATES
SECURITIES
AND EXCHANGE COMMISSION
Washington, D.C.  20549
FORM S-8
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933
ZENITH
NATIONAL INSURANCE CORP.
(Exact Name of Registrant as Specified in Its Charter)
Delaware
95-2702776
(State or Other Jurisdiction of Incorporation or
Organization)
(I.R.S. Employer Identification No.)
21255
Califa Street
Woodland
Hills, California 91367
(Address of Principal Executive Offices) (Zip Code)
Zenith
National Insurance Corp. 2004 Restricted Stock Plan
(Full Title of the Plan)
Michael
E. Jansen
Executive
Vice President and General Counsel
Zenith
National Insurance Corp.
21255
Califa Street
Woodland
Hills, California 91367
(Name and Address Of Agent For Service)
(818)
713-1000
(Telephone Number, Including Area Code, Of Agent For
Service)
Indicate by check
mark whether the registrant is a large accelerated filer, an accelerated filer,
a non-accelerated filer, or a smaller reporting company.  See the definition of "large accelerated
filer," "accelerated filer" and "smaller reporting company" in Rule 12b-2
of the Exchange Act.
Large
  accelerated filer
x
Accelerated
  filer
¨
Non-accelerated
  filer
¨
(Do not check if smaller reporting
  company)
Smaller
  reporting company
¨
CALCULATION
OF REGISTRATION FEE
Title of securities
to be registered
Amount to
be registered
Proposed maximum
offering price per share (1)
Proposed maximum
aggregate offering price(1)
Amount of
registration fee(1)
Common Stock, par
value $1.00 per share
370,000(2
)
$
38.68
$
14,311,600
$
562.45
(1)           Estimated solely for purposes of
calculating the registration fee pursuant to Rules 457(c) and (h) under
the Securities Act of 1933, as amended (the "Securities Act"), on the basis of
the average of the high and low sale prices for a share of Common Stock of
Zenith National Insurance Corp. ("Common Stock") on the New York Stock Exchange
on May 12, 2008.
(2)           Plus such additional number of shares
of Common Stock as may be issuable pursuant to the antidilution provisions of
the Zenith National Insurance Corp. 2004 Restricted Stock Plan.
REGISTRATION OF ADDITIONAL SECURITIES
Pursuant to a Registration
Statement on Form S-8, Registration Number 333-115902, filed on May 26,
2004, Zenith National Insurance Corp. (the "Registrant") registered 250,000
shares of its common stock, $1.00 par value per share (the "Common Stock"), to
be offered under the Third Amended and Restated Zenith National Insurance Corp.
2004 Restricted Stock Plan, as amended and restated May 13, 2008 (the "Plan").  In connection with a three-for-two stock
split in the form of a stock dividend effected in October 2005, the number
of shares of Common Stock initially authorized to be offered under the Plan was
automatically increased pursuant to the terms of the Plan by 125,000 shares to
a total of 375,000 shares of Common Stock. 
Pursuant to a Registration Statement on Form S-8, Registration
Number 333-134531, filed on May 26, 2006, the Registrant registered an
additional 250,000 shares of Common Stock, to be offered under the Plan,
resulting in a total of 625,000 shares being heretofore registered.
Pursuant to General
Instruction E of Form S-8, this Registration Statement on Form S-8
(this "Registration Statement") is being filed to register an additional
370,000 shares of Common Stock that may be issued under the Plan.  The contents of the Registrant's registration
statements on Form S-8, Registration Number 333-115902 and Registration
Number 333-134531, are hereby incorporated by reference into this Registration
Statement.
EXHIBITS
Exhibit No.
Description
4.1
Third Amended and Restated Zenith National Insurance Corp. 2004
  Restricted Stock Plan (as amended and restated May 13, 2008)
  (Exhibit 10.1 to the Registrant's Current Report on Form 8-K filed
  May 13, 2008 is incorporated herein by reference)
5.1
Opinion of Michael E. Jansen, Executive Vice President and General
  Counsel of Zenith National Insurance Corp., regarding the legality of the
  securities being registered
23.1
Consent of PricewaterhouseCoopers LLP, independent registered public
  accounting firm
23.2
Consent of Michael E. Jansen (included in his opinion filed as
  Exhibit 5.1)
2
SIGNATURES
Pursuant to the requirements of the Securities Act of 1933, the
Registrant certifies that it has reasonable grounds to believe that it meets
all of the requirements for filing on Form S-8 and has duly caused this
Registration Statement to be signed on its behalf by the undersigned, thereunto
duly authorized, in the City of Los Angeles, State of California, on this 14
th
day of May 2008.
ZENITH NATIONAL INSURANCE CORP.
By:
/s/ Stanley R. Zax
Stanley R. Zax
Chairman of the Board and
  President
3
POWER OF ATTORNEY AND
SIGNATURES
Each person whose signature appears below constitutes and appoints each
of Stanley R. Zax and Michael E. Jansen, signing singly, his or her true and
lawful attorney-in-fact and agent with full power of substitution and
resubstitution, for him or her and in his or her name, place and stead, in any
and all capacities, to sign any or all amendments (including post-effective
amendments) to this Registration Statement, and to file the same, with all
exhibits thereto, and other documents in connection therewith, with the
Securities and Exchange Commission, granting unto said attorney-in-fact and
agent full power and authority to do and perform each and every act and thing
requisite and necessary to be done in and about the premises, as fully to all
intents and purposes as he or she might or could do in person, hereby ratifying
and confirming all that said attorney-in-fact or his substitute or substitutes,
may lawfully do or cause to be done by virtue hereof.
Pursuant to the requirements
of the Securities Act of 1933, this Registration Statement has been signed by
the following persons in the capacities indicated, on May 14, 2008.
/s/ Stanley R. Zax
Chairman
  of the Board, President and Director
Stanley R. Zax
(Principal
  Executive Officer)
/s/ Kari L. Van Gundy
Senior
  Vice President and Chief Financial Officer
Kari L. Van Gundy
(Principal
  Accounting Officer)
/s/ Max M. Kampelman
Director
Max M. Kampelman
/s/ Robert J. Miller
Director
Robert J. Miller
/s/ Leon E. Panetta
Director
Leon E. Panetta
/s/ Catherine B
.
Reynolds
Director
Catherine B
.
Reynolds
/s/ Alan I. Rothenberg
Director
Alan I. Rothenberg
/s/ William S. Sessions
Director
William S. Sessions
/s/ Gerald Tsai, Jr.
Director
Gerald Tsai, Jr.
/s/ Michael Wm. Zavis
Director
Michael Wm. Zavis
4