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      AND EXCHANGE COMMISSION</strong></font></div>
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      8-K</strong></font><br></div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>CURRENT
      REPORT</strong></font></div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>Pursuant
      to Section 13 or 15(d) of</strong></font></div>
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      Securities Exchange Act of 1934</strong></font></div>
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      of Report (Date of earliest event reported): February 7,
      2006</strong></font></div>
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      CHEMICALS, INC.</strong></font></div>
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    <div>&#160;</div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><strong>Item
      1.01 Entry into a Material Definitive Agreement.</strong></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160;</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">At
      a
      meeting of the Compensation Committee (the &#8220;Committee&#8221;) of the Board of
      Directors (the &#8220;Board&#8221;) of Arch Chemicals, Inc. (the &#8220;Company&#8221;) held on February
      7, 2006, the Committee established for 2006 the bonus amounts, performance
      measures, financial targets and weightings of the performance measures to be
      utilized in determining the annual bonus for the officers. The financial
      performance measures selected for 2006 are earnings per share and cash flow.
      Each financial target requires a minimum financial threshold to be met for
      the
      portion of the bonus that is based on that target to be earned, with higher
      financial performance resulting in a higher percentage (up to 200%) of the
      bonus
      amount tied to that target being earned. The portion of the bonus based on
      financial performance measures vests at the end of the fiscal year if it is
      subsequently determined that the financial targets were satisfied. In addition,
      all executive officers are also eligible to receive a bonus based upon
      achievement of certain personal qualitative objectives.</font></div>
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      on
      February 7, 2006, the Committee granted and set performance goals for
      performance share units and performance share retention units under, and subject
      to, the Arch Chemicals, Inc. 1999 Long Term Incentive Plan. The performance
      share units pay out in cash if a certain return on equity (&#8220;ROE&#8221;) is met for the
      second or third calendar year of the three-year performance period. The
      performance share retention units are similar to the performance share units
      except if no payout results due to the failure to reach the minimum required
      ROE
      target by the end of the three-year period, the units will payout following
      2011
      if the executive is still employed by the Company at that time.</font></div>
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        <div style="WIDTH: 100%; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">2</font></div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Pursuant
      to the requirements of the Securities Exchange Act of 1934, the Registrant
      has
      duly caused this report to be signed on its behalf by the undersigned hereunto
      duly authorized.</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">
      <table align="center" bgcolor="#ffffff" border="0" cellpadding="0" cellspacing="0" width="100%">

          <tr valign="top" bgcolor="#ffffff">
            <td width="50%"><font size="2">Date:&#160;February 10, 2006</font></td>
            <td width="1%">&#160;</td>
            <td width="49%">&#160;</td>
          </tr>
          <tr valign="top" bgcolor="#ffffff">
            <td width="50%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">&#160;</font></td>
            <td width="1%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">&#160;</font></td>
            <td width="49%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">&#160;</font></td>
          </tr>
          <tr valign="top" bgcolor="#ffffff">
            <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">&#160;</font></td>
            <td colspan="2"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">ARCH
              CHEMICALS,
              INC.</font></td>
          </tr>
          <tr valign="top" bgcolor="#ffffff">
            <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">&#160;<br>&#160;</font></td>
            <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">&#160;<br>&#160;</font></td>
            <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">&#160;<br>&#160;</font></td>
          </tr>
          <tr valign="top" bgcolor="#ffffff">
            <td>&#160;</td>
            <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">By:&#160;&#160;</font></td>
            <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: ">/s/&#160;Louis
              S.
              Massimo</font></td>
          </tr>
          <tr valign="top" bgcolor="#ffffff">
            <td>&#160;</td>
            <td>&#160;</td>
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                Vice President and Chief Financial Officer</font></div>
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{"company-data": {"conformed-name": "ARCH CHEMICALS INC", "cik": "0001072343", "assigned-sic": "2800", "irs-number": "061526315", "state-of-incorporation": "VA", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-14601", "film-number": "06596387"}, "business-address": {"street1": "501 MERRITT 7", "street2": "P O BOX 4500", "city": "NORWALK", "state": "CT", "zip": "06856-4500", "phone": "2037503729"}, "mail-address": {"street1": "501 MERRITT 7", "street2": "P O BOX 4500", "city": "NORWALK", "state": "CT", "zip": "06856-4500"}}
UNITED
      STATES
SECURITIES
      AND EXCHANGE COMMISSION
Washington,
      D.C. 20549
_____________________________
FORM
      8-K
_____________________________
CURRENT
      REPORT
Pursuant
      to Section 13 or 15(d) of
the
      Securities Exchange Act of 1934
Date
      of Report (Date of earliest event reported): February 7,
      2006
____________________
ARCH
      CHEMICALS, INC.
(Exact
      name of registrant as specified in its charter)
____________________
Virginia
1-14601
06-1526315
(State
                or other jurisdiction
of
                incorporation)
(Commission
                File Number)
(IRS
                Employer
Identification
                No.)
501
                Merritt 7, Norwalk, CT
06851
(Address
                of principal executive offices)
(Zip
                code)
Registrant's
      telephone number, including area code: (203) 229-2900
(N/A)
(Former
      name or former address, if changed since last report)
_________________________________________
Check
      the
      appropriate box below if the Form 8-K filing is intended to simultaneously
      satisfy the filing obligation of the registrant under any of the following
      provisions (see General Instruction A.2. below):
¨
Written
                communications pursuant to Rule 425 under the Securities Act (17
                CFR
                230.425)
¨
Soliciting
                material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
                240.14a-12)
¨
Pre-commencement
                    communications pursuant to Rule 14d-2(b) under the Exchange Act
                    (17 CFR
                    240.14d-2(b))
¨
Pre-commencement
                      communications pursuant to Rule 13e-4(c) under the Exchange
                      Act (17 CFR
                      240.13e-4(c))
Item
      1.01 Entry into a Material Definitive Agreement.
At
      a
      meeting of the Compensation Committee (the "Committee") of the Board of
      Directors (the "Board") of Arch Chemicals, Inc. (the "Company") held on February
      7, 2006, the Committee established for 2006 the bonus amounts, performance
      measures, financial targets and weightings of the performance measures to be
      utilized in determining the annual bonus for the officers. The financial
      performance measures selected for 2006 are earnings per share and cash flow.
      Each financial target requires a minimum financial threshold to be met for
      the
      portion of the bonus that is based on that target to be earned, with higher
      financial performance resulting in a higher percentage (up to 200%) of the
      bonus
      amount tied to that target being earned. The portion of the bonus based on
      financial performance measures vests at the end of the fiscal year if it is
      subsequently determined that the financial targets were satisfied. In addition,
      all executive officers are also eligible to receive a bonus based upon
      achievement of certain personal qualitative objectives.
Also
      on
      February 7, 2006, the Committee granted and set performance goals for
      performance share units and performance share retention units under, and subject
      to, the Arch Chemicals, Inc. 1999 Long Term Incentive Plan. The performance
      share units pay out in cash if a certain return on equity ("ROE") is met for the
      second or third calendar year of the three-year performance period. The
      performance share retention units are similar to the performance share units
      except if no payout results due to the failure to reach the minimum required
      ROE
      target by the end of the three-year period, the units will payout following
      2011
      if the executive is still employed by the Company at that time.
2
SIGNATURES
Pursuant
      to the requirements of the Securities Exchange Act of 1934, the Registrant
      has
      duly caused this report to be signed on its behalf by the undersigned hereunto
      duly authorized.
Date: February 10, 2006
ARCH
              CHEMICALS,
              INC.
By:
/s/ Louis
              S.
              Massimo
Name:
Louis
                S. Massimo
Title:
Executive
                Vice President and Chief Financial Officer
3