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    <div style="text-align: right; font-weight: bold;">Registration No. 333-_________</div>
    <div style="text-align: center; font-size: 12pt; font-weight: bold;"><font style="font-size: 10pt;"> <br>
      </font></div>
    <div style="text-align: center; font-size: 12pt; font-weight: bold;"><font style="font-size: 10pt;">As filed with the Securities and Exchange Commission on January 12, 2022</font></div>
    <div style="text-align: center; font-size: 12pt; font-weight: bold;"><font style="font-size: 10pt;"> <br>
      </font></div>
    <div style="text-align: center; font-size: 12pt; font-weight: bold;"><font style="font-size: 10pt;"> </font>UNITED STATES</div>
    <div style="text-align: center; font-size: 12pt; font-weight: bold;">SECURITIES AND EXCHANGE COMMISSION</div>
    <div style="text-align: center; font-size: 12pt; font-weight: bold;">Washington, D.C.&#160; 20549</div>
    <div style="text-align: center; font-size: 12pt; font-weight: bold;">____________________</div>
    <div style="text-align: center; font-size: 12pt; font-weight: bold;"> <br>
    </div>
    <div style="text-align: center; font-size: 12pt; font-weight: bold;">FORM S-8</div>
    <div style="text-align: center; font-size: 12pt; font-weight: bold;"> <br>
    </div>
    <div style="text-align: center; font-size: 12pt; font-weight: bold;">REGISTRATION STATEMENT</div>
    <div style="text-align: center; font-size: 12pt; font-weight: bold;">UNDER</div>
    <div style="text-align: center; font-size: 12pt; font-weight: bold;">THE SECURITIES ACT OF 1933</div>
    <div style="text-align: center; font-size: 12pt; font-weight: bold;"> <br>
    </div>
    <div style="text-align: center; font-size: 12pt; font-weight: bold;">CFSB Bancorp, Inc.</div>
    <div style="text-align: center; font-size: 8pt;">(Exact Name of Registrant as Specified in its Charter)</div>
    <div><br>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" id="zca4d870823cc4095909184844adb6fc1">

        <tr>
          <td style="width: 47.35%; vertical-align: top;">
            <div style="text-align: center; font-size: 12pt; font-weight: bold;">United States of America</div>
          </td>
          <td style="width: 5.34%; vertical-align: top;">&#160;</td>
          <td style="width: 47.32%; vertical-align: top;">
            <div style="text-align: center; font-size: 12pt; font-weight: bold;">Being applied for</div>
          </td>
        </tr>
        <tr>
          <td style="width: 47.35%; vertical-align: top;">
            <div style="text-align: center; font-size: 8pt;">(State or Other Jurisdiction of</div>
            <div style="text-align: center; font-size: 8pt;">Incorporation or Organization)</div>
          </td>
          <td style="width: 5.34%; vertical-align: top;">&#160;</td>
          <td style="width: 47.32%; vertical-align: top;">
            <div style="text-align: center; font-size: 8pt;">(I.R.S. Employer Identification No.)</div>
          </td>
        </tr>

    </table>
    <div><br>
    </div>
    <div style="text-align: center; font-size: 12pt; font-weight: bold;">15 Beach Street</div>
    <div style="text-align: center; font-size: 12pt; font-weight: bold;">Quincy, Massachusetts 02170</div>
    <div style="text-align: center; font-size: 12pt;"><font style="font-size: 8pt;">(Address of Principal Executive Offices)</font><font style="font-weight: bold;"></font></div>
    <div style="text-align: center; font-size: 12pt;"><font style="font-weight: bold;"> <br>
      </font></div>
    <div style="text-align: center; font-size: 12pt;"><font style="font-weight: bold;">Colonial Federal Savings Bank 401(k) Plan</font></div>
    <div style="text-align: center; font-size: 8pt;">(Full Title of the Plan)</div>
    <div style="text-align: center; font-size: 8pt;"> <br>
    </div>
    <div style="text-align: center;">Copies to:</div>
    <div style="text-align: center;"> <br>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" id="z36938a50bf9e4f09acf88514a448dcc6">

        <tr>
          <td style="width: 47.35%; vertical-align: top;">
            <div style="text-align: center;">Michael E. McFarland</div>
          </td>
          <td style="width: 5.34%; vertical-align: top;">&#160;</td>
          <td style="width: 47.32%; vertical-align: top;">
            <div style="text-align: center;">Thomas P. Hutton , Esq.</div>
          </td>
        </tr>
        <tr>
          <td style="width: 47.35%; vertical-align: top;">
            <div style="text-align: center;">President and Chief Executive Officer</div>
          </td>
          <td style="width: 5.34%; vertical-align: top;">&#160;</td>
          <td style="width: 47.32%; vertical-align: top;">
            <div style="text-align: center;">Scott A. Brown, Esq.</div>
          </td>
        </tr>
        <tr>
          <td style="width: 47.35%; vertical-align: top;">
            <div style="text-align: center;">CFSB Bancorp, Inc.</div>
          </td>
          <td style="width: 5.34%; vertical-align: top;">&#160;</td>
          <td style="width: 47.32%; vertical-align: top;">
            <div style="text-align: center;">Luse Gorman, PC</div>
          </td>
        </tr>
        <tr>
          <td style="width: 47.35%; vertical-align: top;">
            <div style="text-align: center;">15 Beach Street</div>
          </td>
          <td style="width: 5.34%; vertical-align: top;">&#160;</td>
          <td style="width: 47.32%; vertical-align: top;">
            <div style="text-align: center;">5335 Wisconsin Ave., N.W., Suite 780</div>
          </td>
        </tr>
        <tr>
          <td style="width: 47.35%; vertical-align: top;">
            <div style="text-align: center;">Quincy, Massachusetts 02170</div>
          </td>
          <td style="width: 5.34%; vertical-align: top;">&#160;</td>
          <td style="width: 47.32%; vertical-align: top;">
            <div style="text-align: center;">Washington, DC 20015-2035</div>
          </td>
        </tr>
        <tr>
          <td style="width: 47.35%; vertical-align: top;">
            <div style="text-align: center;">(617) 471-0750</div>
          </td>
          <td style="width: 5.34%; vertical-align: top;">&#160;</td>
          <td style="width: 47.32%; vertical-align: top;">
            <div style="text-align: center;">(202) 274-2000</div>
          </td>
        </tr>
        <tr>
          <td style="width: 47.35%; vertical-align: top;">
            <div style="text-align: center;">(Name, Address and Telephone</div>
          </td>
          <td style="width: 5.34%; vertical-align: top;">&#160;</td>
          <td style="width: 47.32%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 47.35%; vertical-align: top;">
            <div style="text-align: center;">Number of Agent for Service)</div>
          </td>
          <td style="width: 5.34%; vertical-align: top;">&#160;</td>
          <td style="width: 47.32%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 47.35%; vertical-align: top;">&#160;</td>
          <td style="width: 5.34%; vertical-align: top;">&#160;</td>
          <td style="width: 47.32%; vertical-align: top;">&#160;</td>
        </tr>

    </table>
    <div style="text-align: justify;">Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of &#8220;large
      accelerated filer,&#8221; &#8220;accelerated filer,&#8221; &#8220;smaller reporting company&#8221; and &#8220;emerging growth company&#8221; in Rule 12b-2 of the Securities Exchange Act of 1934, as amended (the &#8220;Exchange Act&#8221;):</div>
    <div><br>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" id="z54450d1afea349328efbeb8d92782ad0">

        <tr>
          <td style="width: 66.66%; vertical-align: top;">
            <div>Large accelerated filer &#9744;</div>
          </td>
          <td style="width: 33.34%; vertical-align: top;">
            <div>Accelerated filer &#9744;</div>
          </td>
        </tr>
        <tr>
          <td style="width: 66.66%; vertical-align: top;">
            <div>Non-accelerated filer&#160; &#8999;</div>
          </td>
          <td style="width: 33.34%; vertical-align: top;">
            <div>Smaller reporting company&#8999;</div>
          </td>
        </tr>
        <tr>
          <td style="width: 66.66%; vertical-align: top;">
            <div>Emerging growth company &#8999;</div>
          </td>
          <td style="width: 33.34%; vertical-align: top;">&#160;</td>
        </tr>

    </table>
    <div><br>
    </div>
    <div style="text-align: justify;">If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to
      Section 7(a)(2)(B) of the Securities Act. &#9744;</div>
    <div><br>
    </div>
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    <div style="text-align: center; font-weight: bold;">CALCULATION OF REGISTRATION FEE</div>
    <div><br>
    </div>
    <div><br>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" id="z0a26d9c3fc494b5490bec81be32ff87e">

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          <td style="width: 20.01%; vertical-align: bottom; border-bottom: 2px solid rgb(0, 0, 0); border-top: 2px solid rgb(0, 0, 0); border-left: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center;">Title of Securities to </div>
            <div style="text-align: center;">be Registered</div>
          </td>
          <td style="width: 20.01%; vertical-align: bottom; border-bottom: 2px solid rgb(0, 0, 0); border-top: 2px solid rgb(0, 0, 0); border-left: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center;">Amount to be </div>
            <div style="text-align: center;">Registered</div>
          </td>
          <td style="width: 20%; vertical-align: bottom; border-bottom: 2px solid rgb(0, 0, 0); border-top: 2px solid rgb(0, 0, 0); border-left: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center;">Proposed Maximum Offering Price Per Share</div>
          </td>
          <td style="width: 20%; vertical-align: bottom; border-bottom: 2px solid rgb(0, 0, 0); border-top: 2px solid rgb(0, 0, 0); border-left: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center;">Proposed Maximum Aggregate Offering Price</div>
          </td>
          <td style="width: 20%; vertical-align: bottom; border-width: 2px; border-style: solid; border-color: rgb(0, 0, 0);">
            <div style="text-align: center;">Amount of </div>
            <div style="text-align: center;">Registration Fee</div>
          </td>
        </tr>
        <tr>
          <td style="width: 20.01%; vertical-align: top; border-bottom: 2px solid rgb(0, 0, 0); border-left: 2px solid rgb(0, 0, 0);">
            <div>Common stock, $0.01 par value per share</div>
          </td>
          <td style="width: 20.01%; vertical-align: bottom; border-bottom: 2px solid rgb(0, 0, 0); border-left: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center;">632,188<sup style="vertical-align: text-top; line-height: 1; font-size: smaller;">(1)</sup></div>
          </td>
          <td style="width: 20%; vertical-align: bottom; border-bottom: 2px solid rgb(0, 0, 0); border-left: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center;">$10.00<sup style="vertical-align: text-top; line-height: 1; font-size: smaller;"> (3)</sup></div>
          </td>
          <td style="width: 20%; vertical-align: bottom; border-bottom: 2px solid rgb(0, 0, 0); border-left: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center;">$6,321,880</div>
          </td>
          <td style="width: 20%; vertical-align: bottom; border-bottom: 2px solid rgb(0, 0, 0); border-left: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center;">$587</div>
          </td>
        </tr>
        <tr>
          <td style="width: 20.01%; vertical-align: top; border-bottom: 2px solid rgb(0, 0, 0); border-left: 2px solid rgb(0, 0, 0);">
            <div>Participation Interests</div>
          </td>
          <td style="width: 20.01%; vertical-align: bottom; border-bottom: 2px solid rgb(0, 0, 0); border-left: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center;">--<sup style="vertical-align: text-top; line-height: 1; font-size: smaller;"> (2)</sup></div>
          </td>
          <td style="width: 20%; vertical-align: bottom; border-bottom: 2px solid rgb(0, 0, 0); border-left: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center;">--</div>
          </td>
          <td style="width: 20%; vertical-align: bottom; border-bottom: 2px solid rgb(0, 0, 0); border-left: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center;">--</div>
          </td>
          <td style="width: 20%; vertical-align: bottom; border-bottom: 2px solid rgb(0, 0, 0); border-left: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center;">--<sup style="vertical-align: text-top; line-height: 1; font-size: smaller;"> (4)</sup></div>
          </td>
        </tr>

    </table>
    <div>_________________________</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z4c119d3016f341b78733c8f62deac765">

        <tr>
          <td style="width: 18pt; vertical-align: top; align: right;">(1)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>This registration statement relates to 632,188 shares of common stock of CFSB Bancorp, Inc. that may be purchased with employee contributions to the Colonial Federal Savings Bank 401(k) Plan (the &#8220;Plan&#8221;).</div>
          </td>
        </tr>

    </table>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zd2ee8a4ff21246a1820c79a91f69c791">

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          <td style="width: 18pt; vertical-align: top; align: right;">(2)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Pursuant to 17 C.F.R. Section 230.416(c) under the Securities Act of 1933, as amended (the &#8220;Securities Act&#8221;), this registration statement also covers an indeterminate amount of participation interests to be offered or sold pursuant to the
              Plan.</div>
          </td>
        </tr>

    </table>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z565b65fe03fa4333aa60911a262d7c8f">

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          <td style="width: 18pt; vertical-align: top; align: right;">(3)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Determined pursuant 17 C.F.R. Sections 230.457(h)(1) and 230.457(c) of the Securities Act.</div>
          </td>
        </tr>

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        <tr>
          <td style="width: 18pt; vertical-align: top; align: right;">(4)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Pursuant to 17 C.F.R. Section 230.457(h)(2) of the Securities Act, no registration fee is required to be paid. </div>
          </td>
        </tr>

    </table>
    <div style="text-align: center; font-family: 'Times New Roman',Times,serif; font-size: 12pt; font-weight: bold;">____________________</div>
    <div style="text-align: center; font-family: 'Times New Roman',Times,serif; font-size: 12pt; font-weight: bold;"> <br>
    </div>
    <div style="text-align: justify; text-indent: 36pt;">This Registration Statement shall become effective upon filing in accordance with Section 8(a) of the Securities Act and 17 C.F.R. &#167; 230.462 under the Securities Act.</div>
    <div><br>
    </div>
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    <div style="text-align: justify; margin-bottom: 12pt; font-weight: bold;">PART I.</div>
    <div style="text-align: justify; margin-bottom: 12pt; font-weight: bold;">Items 1 and 2.&#160;&#160;Plan Information and Registrant Information and Employee Plan Annual Information</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">The documents containing the information specified in Part I of Form S-8 have been or will be sent or given to participants in the Plan as specified by Rule 428(b)(1) promulgated
      by the Securities and Exchange Commission (the &#8220;Commission&#8221;) under the Securities Act.</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">Such documents are not being filed with the Commission, but constitute (along with the documents incorporated by reference into this Registration Statement pursuant to Item 3 of
      Part II hereof) a prospectus that meets the requirements of Section 10(a) of the Securities Act.</div>
    <div style="text-align: justify; margin-bottom: 12pt; font-weight: bold;">PART II.</div>
    <div style="text-align: justify; margin-bottom: 12pt; font-weight: bold;">Item 3.&#160; Incorporation of Documents by Reference</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">The following documents previously filed by the Company with the Commission under the Securities Exchange Act of 1934, as amended (the &#8220;Exchange Act&#8221;), are incorporated herein by
      reference (other than any such documents or portions thereof that are furnished under Item 2.02 or Item 7.01 of Form&#160;8-K,&#160;unless otherwise indicated therein, including any exhibits included with such Items):</div>
    <div style="margin-bottom: 12pt; text-indent: 36pt;">(a)<font style="display: inline-block; text-indent: 0px; font-size: 1px; width: 36pt" id="TRGRRTFtoHTMLTab">&#160;</font><a href="https://www.sec.gov/Archives/edgar/data/0001879103/000119312521334925/d153463d424b3.htm">The prospectus filed by CFSB Bancorp, Inc.</a> (the &#8220;Company&#8221;) pursuant to Rule 424(b)(3) of the Securities Act with the Commission on November 19, 2021
      (File No. 333-259406);</div>
    <div style="margin-bottom: 12pt; text-indent: 36pt;">(b)<font style="display: inline-block; text-indent: 0px; font-size: 1px; width: 36pt" id="TRGRRTFtoHTMLTab">&#160;</font><a href="https://www.sec.gov/ix?doc=/Archives/edgar/data/0001879103/000119312521364968/d263004d10q.htm">The Company&#8217;s Quarterly Report on Form&#160;10-Q&#160;for the quarter ended September 30, 2021</a> (File No. 333-259406), filed with the Commission on
      December 22, 2021.</div>
    <div style="margin-bottom: 12pt; text-indent: 36pt;">(c)<font style="display: inline-block; text-indent: 0px; font-size: 1px; width: 36pt" id="TRGRRTFtoHTMLTab">&#160;</font><a href="https://www.sec.gov/Archives/edgar/data/0001879103/000119312521325889/d260019d8k.htm">The Company&#8217;s Current Report on Form 8-K </a><a href="https://www.sec.gov/Archives/edgar/data/0001879103/000119312521325889/d260019d8k.htm">filed on
        November 10, 2021</a> (File No. 333-259406); and</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">(d)<font style="display: inline-block; text-indent: 0px; font-size: 1px; width: 36pt" id="TRGRRTFtoHTMLTab">&#160;</font>The description of the Company&#8217;s common stock contained in the<a href="https://www.sec.gov/Archives/edgar/data/0001879103/000094337422000013/form8a_0122.htm"> Registration Statement on Form 8-A filed with the Commission on January 12, 2022</a> to register the Company's common stock under the Exchange Act (File
      No. 001-41220).</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">All documents subsequently filed by the Company with the Commission pursuant to Sections 13(a), 13(c), 14, or 15(d) of the Exchange Act, after the date hereof, and prior to the
      filing of a post-effective amendment, which indicates that all securities offered hereby have been sold or that deregisters all securities then remaining unsold, shall be deemed incorporated by reference into this Registration Statement and to be a
      part thereof from the date of the filing of such documents.&#160; Any statement contained in the documents incorporated, or deemed to be incorporated, by reference herein or therein shall be deemed to be modified or superseded for purposes of this
      Registration Statement and the prospectus to the extent that a statement contained herein or therein or in any other subsequently filed document that also is, or is deemed to be, incorporated by reference herein or therein modifies or supersedes such
      statement.&#160; Any such statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this Registration Statement and the prospectus.</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">All information appearing in this Registration Statement and the prospectus is qualified in its entirety by the detailed information, including financial statements, appearing in
      the documents incorporated herein or therein by reference.</div>
    <div style="text-align: justify; margin-bottom: 12pt; font-weight: bold;">Item 4.&#160;&#160;Description of Securities</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">Not applicable.</div>
    <div style="text-align: justify; margin-bottom: 12pt; font-weight: bold;">Item 5.&#160;&#160;Interests of Named Experts and Counsel</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">None.</div>
    <div style="margin-bottom: 12pt;"><br>
    </div>
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    <div style="text-align: justify; margin-bottom: 12pt; font-weight: bold;">Item 6.&#160;&#160;Indemnification of Directors and Officers</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">Article XII of the Bylaws of CFSB Bancorp, Inc. (the &#8220;Company&#8221;) provide as follows:</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;"><font style="font-weight: bold;">Section 1. Legal Action</font>.</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">(a)<font style="display: inline-block; text-indent: 0px; font-size: 1px; width: 36pt" id="TRGRRTFtoHTMLTab">&#160;</font>The Company may indemnify any person who was or is a party or
      is threatened to be made a party to any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative (other than an action by or in the right of the Company) by reason of the fact that he or
      she is or was a director, officer or employee of the Company against expenses (including attorneys&#8217; fees), judgments, fines and amounts paid in settlement actually and reasonably incurred by such person in connection with such action, suit or
      proceeding, if such person acted in good faith and in a manner he or she reasonably believed to be in, or not opposed to the best interests of the Company, and, with respect to any criminal action or proceeding, had no reasonable cause to believe his
      or her conduct was unlawful.&#160; The termination of any action, suit or proceeding by judgment, order, settlement, conviction, or upon a plea of nolo contendere or its equivalent, shall not, of itself, create a presumption that the person did not act in
      good faith and in a manner which he or she reasonably believed to be in or not opposed to the best interests of the Company or, with respect to any criminal action or proceeding, that the person had reasonable cause to believe that his or her conduct
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    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">(b)<font style="display: inline-block; text-indent: 0px; font-size: 1px; width: 36pt" id="TRGRRTFtoHTMLTab">&#160;</font>The Company may indemnify any person who was or is a party, or
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      Company against expenses (including attorneys&#8217; fees) actually and reasonably incurred by such person in connection with the defense or settlement of such action or suit, if such person acted in good faith and in a manner he or she reasonably believed
      to be in, or not opposed to, the best interests of the Company, provided that no indemnification shall be made with respect to any claim, issue, or matter as to which such person has been adjudged to have been liable to the Company unless and only to
      the extent that the court in which such action or suit was brought shall determine upon application that, despite the adjudication of liability, but in view of all the circumstances of the case, such person is fairly and reasonably entitled to
      indemnity for such expenses as the court shall deem proper.</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;"><font style="font-weight: bold;">Section 2. Successful Defense</font>.&#160; To the extent that a present or former director, officer or employee of the Company has been successful,
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      and reasonably incurred by such person in connection therewith, if the person acted in good faith and in a manner he or she reasonably believed to be in, or not opposed to, the best interests of the Company.</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;"><font style="font-weight: bold;">Section 3. Proper Determination</font>.&#160; Any indemnification under Sections 1 and 2 of this Article XII shall be made by the Company only as
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      XII. Such determination shall be made: (1) by the Board of Directors by a majority vote of a quorum consisting of directors who are not parties to such action, (2) by independent counsel, or (3) by the stockholders of the Company.</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;"><font style="font-weight: bold;">Section 4. Indemnification Not Exclusive</font>.&#160; The indemnification and advancement of expenses provided by or granted under this Article XII
      shall not be deemed exclusive of any other rights to which those seeking indemnification or advancement of expenses may be entitled under any bylaw, agreement, vote of stockholders or disinterested directors, or otherwise, both as to action in his or
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    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;"><font style="font-weight: bold;">Section 5. Insurance</font>.&#160; The Company may purchase and maintain insurance on behalf of any person who is or was a director, officer or
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    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;"><font style="font-weight: bold;">Section 6. Continuation of Indemnification</font>.&#160; The indemnification and advancement of expenses provided by or granted under this Article XII
      shall, unless otherwise provided when authorized or ratified, continue as to a person who has ceased to be a director, officer or employee of the Company and shall inure to the benefit of the heirs, executors, and administrators of that person.</div>
    <div style="text-align: justify; margin-bottom: 12pt;"><font style="font-weight: bold;"> <br>
      </font></div>
    <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
      <div id="DSPFPageBreak" style="page-break-after: always;">
        <hr noshade="noshade" style="border-width: 0px; clear: both; margin: 4px 0px; width: 100%; height: 2px; color: #000000; background-color: #000000;"></div>
    </div>
    <div style="margin: 0px 0px 12pt; text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">Section 7. Applicable Law</font>.&#160; Notwithstanding any other provision of this Article XII, no indemnification or purchase of insurance may be
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    <div style="text-align: justify; margin-bottom: 12pt; font-weight: bold;">Item 7.&#160;&#160;Exemption From Registration Claimed</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">Not applicable.</div>
    <div style="text-align: justify; margin-bottom: 12pt; font-weight: bold;">Item 8.&#160;&#160;List of Exhibits</div>
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        <tr>
          <td style="width: 18.16%; vertical-align: bottom; border-bottom: 2px solid black;">
            <div style="text-align: center;">Regulation S-K</div>
            <div style="text-align: center;">Exhibit Number</div>
          </td>
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          <td style="width: 40.36%; vertical-align: bottom; border-bottom: 2px solid black;">
            <div style="text-align: center;">Document</div>
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          <td style="width: 29.46%; vertical-align: bottom; border-bottom: 2px solid black;">
            <div style="text-align: center;">Reference to Prior Filing or</div>
            <div style="text-align: center;">Exhibit No. Attached Hereto</div>
          </td>
        </tr>
        <tr>
          <td style="width: 18.16%; vertical-align: top;">&#160;</td>
          <td style="width: 6.02%; vertical-align: top;">&#160;</td>
          <td style="width: 40.36%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">&#160;</td>
          <td style="width: 29.46%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 18.16%; vertical-align: top;">
            <div style="text-align: center;">4</div>
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          <td style="width: 40.36%; vertical-align: top;">
            <div><a href="https://www.sec.gov/Archives/edgar/data/0001879103/000119312521268646/d153463dex4.htm">Form of Common Stock Certificate</a></div>
          </td>
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          <td style="width: 29.46%; vertical-align: top;">
            <div style="text-align: justify;">*</div>
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        </tr>
        <tr>
          <td style="width: 18.16%; vertical-align: top;">&#160;</td>
          <td style="width: 6.02%; vertical-align: top;">&#160;</td>
          <td style="width: 40.36%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">&#160;</td>
          <td style="width: 29.46%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 18.16%; vertical-align: top;">
            <div style="text-align: center;">23</div>
          </td>
          <td style="width: 6.02%; vertical-align: top;">&#160;</td>
          <td style="width: 40.36%; vertical-align: top;">
            <div><a href="ex23.htm#POWEROFATTORNEY">Consent of Independent Registered Public Accounting Firm</a></div>
          </td>
          <td style="width: 6%; vertical-align: top;">&#160;</td>
          <td style="width: 29.46%; vertical-align: top;">
            <div style="text-align: justify;">Attached as Exhibit 23</div>
          </td>
        </tr>
        <tr>
          <td style="width: 18.16%; vertical-align: top;">&#160;</td>
          <td style="width: 6.02%; vertical-align: top;">&#160;</td>
          <td style="width: 40.36%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">&#160;</td>
          <td style="width: 29.46%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 18.16%; vertical-align: top;">
            <div style="text-align: center;">24</div>
          </td>
          <td style="width: 6.02%; vertical-align: top;">&#160;</td>
          <td style="width: 40.36%; vertical-align: top;">
            <div><a href="#POWEROFATTORNEY">Power of Attorney</a></div>
          </td>
          <td style="width: 6%; vertical-align: top;">&#160;</td>
          <td style="width: 29.46%; vertical-align: top;">
            <div style="text-align: justify;">Contained on Signature Page</div>
          </td>
        </tr>

    </table>
    <div style="text-align: justify;">_________________________</div>
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          <td style="width: 18pt; vertical-align: top; align: right;">*</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Incorporated by reference to Exhibit 4.1 to the Registration Statement on Form 8-A (File No. 001-41220) filed by the Company under the Exchange Act with the Commission on January 12, 2022.</div>
          </td>
        </tr>

    </table>
    <div><br>
    </div>
    <div style="text-align: justify; text-indent: 36pt;">The undersigned hereby undertakes that Colonial Federal Savings Bank, the wholly-owned subsidiary of the registrant, has submitted, or will submit, the Plan and any amendment thereto to the Internal
      Revenue Service in a timely manner and has made, or will make, all changes required by the Internal Revenue Service in order to qualify the Plan.</div>
    <div><br>
    </div>
    <div style="text-align: justify; text-indent: -18pt; margin-left: 18pt; margin-bottom: 12pt; font-weight: bold;">Item 9.&#160;&#160;Undertakings</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">The undersigned registrant hereby undertakes:</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">1.<font style="display: inline-block; text-indent: 0px; font-size: 1px; width: 36pt" id="TRGRRTFtoHTMLTab">&#160;</font>To file, during any period in which offers or sales are being
      made, a post-effective amendment to the Registration Statement to include any material information with respect to the plan of distribution not previously disclosed in the Registration Statement or any material change to such information in the
      Registration Statement;</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">2.<font style="display: inline-block; text-indent: 0px; font-size: 1px; width: 36pt" id="TRGRRTFtoHTMLTab">&#160;</font>That, for the purpose of determining any liability under the
      Securities Act of 1933, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial <font style="font-style: italic;">bona fide</font> offering thereof;</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">3.<font style="display: inline-block; text-indent: 0px; font-size: 1px; width: 36pt" id="TRGRRTFtoHTMLTab">&#160;</font>To remove from registration by means of a post-effective
      amendment any of the securities being registered which remain unsold at the termination of the offering;</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">4.<font style="display: inline-block; text-indent: 0px; font-size: 1px; width: 36pt" id="TRGRRTFtoHTMLTab">&#160;</font>That, for purposes of determining any liability under the
      Securities Act, each filing of the registrant&#8217;s annual report pursuant to Section 13(a) or 15(d) of the Exchange Act that is incorporated by reference in the Registration Statement shall be deemed to be a new registration statement relating to the
      securities offered therein, and the offering of such securities at that time shall be deemed to be the initial <font style="font-style: italic;">bona fide</font> offering thereof;</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">5.<font style="display: inline-block; text-indent: 0px; font-size: 1px; width: 36pt" id="TRGRRTFtoHTMLTab">&#160;</font>The undersigned registrant hereby undertakes that, for purposes
      of determining any liability under the Securities Act of 1933, each filing of the registrant's annual report pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (and, where applicable, each filing of an employee benefit plan's
      annual report pursuant to Section 15(d) of the Securities Exchange Act of 1934) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the
      offering of such securities at that time shall be deemed to be the initial <font style="font-style: italic;">bona fide</font> offering thereof; and</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">6.<font style="display: inline-block; text-indent: 0px; font-size: 1px; width: 36pt" id="TRGRRTFtoHTMLTab">&#160;</font>Insofar as indemnification for liabilities arising under the
      Securities Act of 1933 may be permitted to directors, officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the Securities and Exchange Commission
      such indemnification is against public policy as expressed in the Act and is, therefore, unenforceable.&#160; In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred or paid by
      a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the registrant
      will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Act and will
      be governed by the final adjudication of such issue.</div>
    <div style="margin-bottom: 12pt;"><br>
    </div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div style="page-break-after:always;" id="DSPFPageBreak">
        <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
    </div>
    <div style="text-align: center; font-weight: bold;">SIGNATURES</div>
    <div><br>
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    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;"><font style="font-weight: bold;">The Registrant.</font>&#160; Pursuant to the requirements of the Securities Act of 1933, as amended, 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 Quincy, Commonwealth of
      Massachusetts, on January 12, 2022.</div>
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          <td style="width: 44.94%; vertical-align: top;">&#160;</td>
          <td style="width: 10.14%; vertical-align: top;">&#160;</td>
          <td style="width: 44.92%; vertical-align: top;">
            <div style="text-align: justify; font-weight: bold;">CFSB BANCORP, INC.</div>
            <div>&#160;</div>
            <div>&#160;</div>
            <div>&#160;</div>
            <div>&#160;</div>
          </td>
        </tr>
        <tr>
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            <div style="text-align: right;">By:&#160;&#160; <br>
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            <div style="text-align: justify;"><u>/s/ Michael E. McFarland</u></div>
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        </tr>
        <tr>
          <td style="width: 44.94%; vertical-align: top;">&#160;</td>
          <td style="width: 10.14%; vertical-align: top;">&#160;</td>
          <td style="width: 44.92%; vertical-align: top;">
            <div style="text-align: justify;">Michael E. McFarland</div>
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        </tr>
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          <td style="width: 44.94%; vertical-align: top;">&#160;</td>
          <td style="width: 10.14%; vertical-align: top;">&#160;</td>
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            <div style="text-align: justify;">President and Chief Executive Officer</div>
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        </tr>
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          <td style="width: 44.94%; vertical-align: top;">&#160;</td>
          <td style="width: 10.14%; vertical-align: top;">&#160;</td>
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            <div style="text-align: justify;">(Duly Authorized Representative)</div>
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        </tr>

    </table>
    <div><br>
    </div>
    <div><br>
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    <div style="text-align: center; font-weight: bold;"><a name="POWEROFATTORNEY"><!--Anchor--></a>POWER OF ATTORNEY</div>
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    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">We, the undersigned directors and officers of CFSB Foundry Bancorp, Inc. (the &#8220;Company&#8221;) hereby severally constitute and appoint Michael E. McFarland, as our true and lawful
      attorney and agent, to do any and all things in our names in the capacities indicated below which said Michael E. McFarland may deem necessary or advisable to enable the Company to comply with the Securities Act of 1933, as amended, and any rules,
      regulations and requirements of the Securities and Exchange Commission, in connection with the registration of Company common stock and participation interests offered or sold to the Colonial Federal Savings Bank 401(k) Plan, including specifically,
      but not limited to, power and authority to sign for us in our names in the capacities indicated below the registration statement and any and all amendments (including post-effective amendments) thereto; and we hereby approve, ratify and confirm all
      that said Michael E. McFarland shall do or cause to be done by virtue thereof.</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">Pursuant to the requirements of the Securities Act of 1933, as amended, this registration statement has been signed by the following persons in the capacities and on the date
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          <td style="width: 29.14%; vertical-align: top;">
            <div><u>Signatures</u></div>
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          <td style="width: 3.94%; vertical-align: top;">&#160;</td>
          <td style="width: 33.85%; vertical-align: top;">
            <div><u>Title</u></div>
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          <td style="width: 29.12%; vertical-align: top;">
            <div><u>Date</u></div>
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          <td style="width: 29.14%; vertical-align: top;">&#160;</td>
          <td style="width: 3.94%; vertical-align: top;">&#160;</td>
          <td style="width: 33.85%; vertical-align: top;">&#160;</td>
          <td style="width: 3.96%; vertical-align: top;">&#160;</td>
          <td style="width: 29.12%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 29.14%; vertical-align: top;">&#160;</td>
          <td style="width: 3.94%; vertical-align: top;">&#160;</td>
          <td style="width: 33.85%; vertical-align: top;">&#160;</td>
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            <div>President, Chief Executive Officer</div>
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            <div>&#160;January 12, 2022</div>
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        </tr>
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            <div>Michael E. McFarland</div>
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          <td style="width: 3.94%; vertical-align: top;">&#160;</td>
          <td style="width: 33.85%; vertical-align: top;">
            <div>(Principal Executive Officer)</div>
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          <td style="width: 3.96%; vertical-align: top;">&#160;</td>
          <td style="width: 29.12%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 29.14%; vertical-align: top;">&#160;</td>
          <td style="width: 3.94%; vertical-align: top;">&#160;</td>
          <td style="width: 33.85%; vertical-align: top;">&#160;</td>
          <td style="width: 3.96%; vertical-align: top;">&#160;</td>
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        </tr>
        <tr>
          <td style="width: 29.14%; vertical-align: top;">&#160;</td>
          <td style="width: 3.94%; vertical-align: top;">&#160;</td>
          <td style="width: 33.85%; vertical-align: top;">&#160;</td>
          <td style="width: 3.96%; vertical-align: top;">&#160;</td>
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          <td style="width: 3.94%; vertical-align: top;">&#160;</td>
          <td style="width: 33.85%; vertical-align: top;">
            <div>Treasurer and Chief Operating</div>
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            <div>&#160;January 12, 2022</div>
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        </tr>
        <tr>
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            <div>Susan Shea</div>
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          <td style="width: 33.85%; vertical-align: top;">
            <div>Officer (Principal Financial and Accounting Officer)</div>
          </td>
          <td style="width: 3.96%; vertical-align: top;">&#160;</td>
          <td style="width: 29.12%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 29.14%; vertical-align: top;">&#160;</td>
          <td style="width: 3.94%; vertical-align: top;">&#160;</td>
          <td style="width: 33.85%; vertical-align: top;">&#160;</td>
          <td style="width: 3.96%; vertical-align: top;">&#160;</td>
          <td style="width: 29.12%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 29.14%; vertical-align: top;">&#160;</td>
          <td style="width: 3.94%; vertical-align: top;">&#160;</td>
          <td style="width: 33.85%; vertical-align: top;">&#160;</td>
          <td style="width: 3.96%; vertical-align: top;">&#160;</td>
          <td style="width: 29.12%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
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          <td style="width: 33.85%; vertical-align: top;">
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{"company-data": {"conformed-name": "CFSB Bancorp, Inc. /MA/", "cik": "0001879103", "assigned-sic": "6035", "irs-number": "000000000", "state-of-incorporation": "MA", "fiscal-year-end": "0630"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-262123", "film-number": "22526938"}, "business-address": {"street1": "15 BEACH STREET", "city": "QUINCY", "state": "MA", "zip": "02170", "phone": "(617) 471-0750"}, "mail-address": {"street1": "15 BEACH STREET", "city": "QUINCY", "state": "MA", "zip": "02170"}}
Registration No. 333-_________
As filed with the Securities and Exchange Commission on January 12, 2022
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C.  20549
____________________
FORM S-8
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933
CFSB Bancorp, Inc.
(Exact Name of Registrant as Specified in its Charter)
United States of America
Being applied for
(State or Other Jurisdiction of
Incorporation or Organization)
(I.R.S. Employer Identification No.)
15 Beach Street
Quincy, Massachusetts 02170
(Address of Principal Executive Offices)
Colonial Federal Savings Bank 401(k) Plan
(Full Title of the Plan)
Copies to:
Michael E. McFarland
Thomas P. Hutton , Esq.
President and Chief Executive Officer
Scott A. Brown, Esq.
CFSB Bancorp, Inc.
Luse Gorman, PC
15 Beach Street
5335 Wisconsin Ave., N.W., Suite 780
Quincy, Massachusetts 02170
Washington, DC 20015-2035
(617) 471-0750
(202) 274-2000
(Name, Address and Telephone
Number of Agent for Service)
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of "large
      accelerated filer," "accelerated filer," "smaller reporting company" and "emerging growth company" in Rule 12b-2 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"):
Large accelerated filer ☐
Accelerated filer ☐
Non-accelerated filer  ⌧
Smaller reporting company⌧
Emerging growth company ⌧
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to
      Section 7(a)(2)(B) of the Securities Act. ☐
CALCULATION OF REGISTRATION FEE
Title of Securities to
be Registered
Amount to be
Registered
Proposed Maximum Offering Price Per Share
Proposed Maximum Aggregate Offering Price
Amount of
Registration Fee
Common stock, $0.01 par value per share
632,188
(1)
$10.00
(3)
$6,321,880
$587
Participation Interests
--
(2)
--
--
--
(4)
_________________________
(1)
This registration statement relates to 632,188 shares of common stock of CFSB Bancorp, Inc. that may be purchased with employee contributions to the Colonial Federal Savings Bank 401(k) Plan (the "Plan").
(2)
Pursuant to 17 C.F.R. Section 230.416(c) under the Securities Act of 1933, as amended (the "Securities Act"), this registration statement also covers an indeterminate amount of participation interests to be offered or sold pursuant to the
              Plan.
(3)
Determined pursuant 17 C.F.R. Sections 230.457(h)(1) and 230.457(c) of the Securities Act.
(4)
Pursuant to 17 C.F.R. Section 230.457(h)(2) of the Securities Act, no registration fee is required to be paid.
____________________
This Registration Statement shall become effective upon filing in accordance with Section 8(a) of the Securities Act and 17 C.F.R. § 230.462 under the Securities Act.
PART I.
Items 1 and 2.  Plan Information and Registrant Information and Employee Plan Annual Information
The documents containing the information specified in Part I of Form S-8 have been or will be sent or given to participants in the Plan as specified by Rule 428(b)(1) promulgated
      by the Securities and Exchange Commission (the "Commission") under the Securities Act.
Such documents are not being filed with the Commission, but constitute (along with the documents incorporated by reference into this Registration Statement pursuant to Item 3 of
      Part II hereof) a prospectus that meets the requirements of Section 10(a) of the Securities Act.
PART II.
Item 3.  Incorporation of Documents by Reference
The following documents previously filed by the Company with the Commission under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), are incorporated herein by
      reference (other than any such documents or portions thereof that are furnished under Item 2.02 or Item 7.01 of Form 8-K, unless otherwise indicated therein, including any exhibits included with such Items):
(a)
The prospectus filed by CFSB Bancorp, Inc.
(the "Company") pursuant to Rule 424(b)(3) of the Securities Act with the Commission on November 19, 2021
      (File No. 333-259406);
(b)
The Company's Quarterly Report on Form 10-Q for the quarter ended September 30, 2021
(File No. 333-259406), filed with the Commission on
      December 22, 2021.
(c)
The Company's Current Report on Form 8-K
filed on
        November 10, 2021
(File No. 333-259406); and
(d)
The description of the Company's common stock contained in the
Registration Statement on Form 8-A filed with the Commission on January 12, 2022
to register the Company's common stock under the Exchange Act (File
      No. 001-41220).
All documents subsequently filed by the Company with the Commission pursuant to Sections 13(a), 13(c), 14, or 15(d) of the Exchange Act, after the date hereof, and prior to the
      filing of a post-effective amendment, which indicates that all securities offered hereby have been sold or that deregisters all securities then remaining unsold, shall be deemed incorporated by reference into this Registration Statement and to be a
      part thereof from the date of the filing of such documents.  Any statement contained in the documents incorporated, or deemed to be incorporated, by reference herein or therein shall be deemed to be modified or superseded for purposes of this
      Registration Statement and the prospectus to the extent that a statement contained herein or therein or in any other subsequently filed document that also is, or is deemed to be, incorporated by reference herein or therein modifies or supersedes such
      statement.  Any such statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this Registration Statement and the prospectus.
All information appearing in this Registration Statement and the prospectus is qualified in its entirety by the detailed information, including financial statements, appearing in
      the documents incorporated herein or therein by reference.
Item 4.  Description of Securities
Not applicable.
Item 5.  Interests of Named Experts and Counsel
None.
Item 6.  Indemnification of Directors and Officers
Article XII of the Bylaws of CFSB Bancorp, Inc. (the "Company") provide as follows:
Section 1. Legal Action
.
(a)
The Company may indemnify any person who was or is a party or
      is threatened to be made a party to any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative (other than an action by or in the right of the Company) by reason of the fact that he or
      she is or was a director, officer or employee of the Company against expenses (including attorneys' fees), judgments, fines and amounts paid in settlement actually and reasonably incurred by such person in connection with such action, suit or
      proceeding, if such person acted in good faith and in a manner he or she reasonably believed to be in, or not opposed to the best interests of the Company, and, with respect to any criminal action or proceeding, had no reasonable cause to believe his
      or her conduct was unlawful.  The termination of any action, suit or proceeding by judgment, order, settlement, conviction, or upon a plea of nolo contendere or its equivalent, shall not, of itself, create a presumption that the person did not act in
      good faith and in a manner which he or she reasonably believed to be in or not opposed to the best interests of the Company or, with respect to any criminal action or proceeding, that the person had reasonable cause to believe that his or her conduct
      was unlawful.
(b)
The Company may indemnify any person who was or is a party, or
      is threatened to be made a party to any threatened, pending or completed action or suit by or in the right of the Company to procure a judgment in its favor by reason of the fact that such person is or was a director, officer or employee of the
      Company against expenses (including attorneys' fees) actually and reasonably incurred by such person in connection with the defense or settlement of such action or suit, if such person acted in good faith and in a manner he or she reasonably believed
      to be in, or not opposed to, the best interests of the Company, provided that no indemnification shall be made with respect to any claim, issue, or matter as to which such person has been adjudged to have been liable to the Company unless and only to
      the extent that the court in which such action or suit was brought shall determine upon application that, despite the adjudication of liability, but in view of all the circumstances of the case, such person is fairly and reasonably entitled to
      indemnity for such expenses as the court shall deem proper.
Section 2. Successful Defense
.  To the extent that a present or former director, officer or employee of the Company has been successful,
      on the merits or otherwise, in the defense of any action, suit or proceeding referred to in this Article XII or in defense of any claim, issue or matter therein, such person shall be indemnified against expenses (including attorneys' fees) actually
      and reasonably incurred by such person in connection therewith, if the person acted in good faith and in a manner he or she reasonably believed to be in, or not opposed to, the best interests of the Company.
Section 3. Proper Determination
.  Any indemnification under Sections 1 and 2 of this Article XII shall be made by the Company only as
      authorized in the specific case, upon a determination that indemnification of the present or former director, officer or employee is proper in the circumstances because he or she has met the applicable standard of conduct set forth in this Article
      XII. Such determination shall be made: (1) by the Board of Directors by a majority vote of a quorum consisting of directors who are not parties to such action, (2) by independent counsel, or (3) by the stockholders of the Company.
Section 4. Indemnification Not Exclusive
.  The indemnification and advancement of expenses provided by or granted under this Article XII
      shall not be deemed exclusive of any other rights to which those seeking indemnification or advancement of expenses may be entitled under any bylaw, agreement, vote of stockholders or disinterested directors, or otherwise, both as to action in his or
      her official capacity and as to action in another capacity while holding such office.
Section 5. Insurance
.  The Company may purchase and maintain insurance on behalf of any person who is or was a director, officer or
      employee of the Company against any liability asserted against such person and incurred by such person in any such capacity, or arising out of his or her status as such, whether or not the Company would have the power to indemnify such person against
      such liability under the provisions of this Article XII.
Section 6. Continuation of Indemnification
.  The indemnification and advancement of expenses provided by or granted under this Article XII
      shall, unless otherwise provided when authorized or ratified, continue as to a person who has ceased to be a director, officer or employee of the Company and shall inure to the benefit of the heirs, executors, and administrators of that person.
Section 7. Applicable Law
.  Notwithstanding any other provision of this Article XII, no indemnification or purchase of insurance may be
      promised or made unless in compliance with applicable laws, rules or regulations, including 12 CFR §239.40, 12 USC §1828(k) and 12 CFR Part 359.
Item 7.  Exemption From Registration Claimed
Not applicable.
Item 8.  List of Exhibits
Regulation S-K
Exhibit Number
Document
Reference to Prior Filing or
Exhibit No. Attached Hereto
4
Form of Common Stock Certificate
*
23
Consent of Independent Registered Public Accounting Firm
Attached as Exhibit 23
24
Power of Attorney
Contained on Signature Page
_________________________
*
Incorporated by reference to Exhibit 4.1 to the Registration Statement on Form 8-A (File No. 001-41220) filed by the Company under the Exchange Act with the Commission on January 12, 2022.
The undersigned hereby undertakes that Colonial Federal Savings Bank, the wholly-owned subsidiary of the registrant, has submitted, or will submit, the Plan and any amendment thereto to the Internal
      Revenue Service in a timely manner and has made, or will make, all changes required by the Internal Revenue Service in order to qualify the Plan.
Item 9.  Undertakings
The undersigned registrant hereby undertakes:
1.
To file, during any period in which offers or sales are being
      made, a post-effective amendment to the Registration Statement to include any material information with respect to the plan of distribution not previously disclosed in the Registration Statement or any material change to such information in the
      Registration Statement;
2.
That, for the purpose of determining any liability under the
      Securities Act of 1933, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial
bona fide
offering thereof;
3.
To remove from registration by means of a post-effective
      amendment any of the securities being registered which remain unsold at the termination of the offering;
4.
That, for purposes of determining any liability under the
      Securities Act, each filing of the registrant's annual report pursuant to Section 13(a) or 15(d) of the Exchange Act that is incorporated by reference in the Registration Statement shall be deemed to be a new registration statement relating to the
      securities offered therein, and the offering of such securities at that time shall be deemed to be the initial
bona fide
offering thereof;
5.
The undersigned registrant hereby undertakes that, for purposes
      of determining any liability under the Securities Act of 1933, each filing of the registrant's annual report pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (and, where applicable, each filing of an employee benefit plan's
      annual report pursuant to Section 15(d) of the Securities Exchange Act of 1934) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the
      offering of such securities at that time shall be deemed to be the initial
bona fide
offering thereof; and
6.
Insofar as indemnification for liabilities arising under the
      Securities Act of 1933 may be permitted to directors, officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the Securities and Exchange Commission
      such indemnification is against public policy as expressed in the Act and is, therefore, unenforceable.  In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred or paid by
      a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the registrant
      will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Act and will
      be governed by the final adjudication of such issue.
SIGNATURES
The Registrant.
Pursuant to the requirements of the Securities Act of 1933, as amended, 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 Quincy, Commonwealth of
      Massachusetts, on January 12, 2022.
CFSB BANCORP, INC.
By:
/s/ Michael E. McFarland
Michael E. McFarland
President and Chief Executive Officer
(Duly Authorized Representative)
POWER OF ATTORNEY
We, the undersigned directors and officers of CFSB Foundry Bancorp, Inc. (the "Company") hereby severally constitute and appoint Michael E. McFarland, as our true and lawful
      attorney and agent, to do any and all things in our names in the capacities indicated below which said Michael E. McFarland may deem necessary or advisable to enable the Company to comply with the Securities Act of 1933, as amended, and any rules,
      regulations and requirements of the Securities and Exchange Commission, in connection with the registration of Company common stock and participation interests offered or sold to the Colonial Federal Savings Bank 401(k) Plan, including specifically,
      but not limited to, power and authority to sign for us in our names in the capacities indicated below the registration statement and any and all amendments (including post-effective amendments) thereto; and we hereby approve, ratify and confirm all
      that said Michael E. McFarland shall do or cause to be done by virtue thereof.
Pursuant to the requirements of the Securities Act of 1933, as amended, this registration statement has been signed by the following persons in the capacities and on the date
      indicated.
Signatures
Title
Date
/s/ Michael E. McFarland
President, Chief Executive Officer
January 12, 2022
Michael E. McFarland
and Director
(Principal Executive Officer)
/s/ Susan Shea
Treasurer and Chief Operating
January 12, 2022
Susan Shea
Officer (Principal Financial and Accounting Officer)
/s/ James M. O'Leary, Jr.
Chairman of the Board
January 12, 2022
James M. O'Leary, Jr.
/s/ Paul N. Baharian
Director
January 12, 2022
Paul N. Baharian
Signatures
Title
Date
/s/ Robert Guarnieri
Director
January 12, 2022
Robert Guarnieri
/s/ Edward J. Keohane
Director
January 12, 2022
Edward J. Keohane
/s/ Stephen D. Marini
Director
January 12, 2022
Stephen D. Marini
/s/ Tracy L. Wilson
Director
January 12, 2022
Tracy L. Wilson
The Plan
.  Pursuant to the requirements of the Securities Act of 1933, as amended, the trustees (or other persons who administer the Plan) have duly caused
      this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Quincy, Commonwealth of Massachusetts, on January 12, 2022.
Colonial Federal Savings Bank 401(k) Plan
By:
/s/ Michael E. McFarland
Name: Michael E. McFarland
Title: President and Chief Executive Officer