<SUBMISSION>
<ACCESSION-NUMBER>0000950129-07-001272
<TYPE>424B5
<PUBLIC-DOCUMENT-COUNT>1
<FILING-DATE>20070309
<DATE-OF-FILING-DATE-CHANGE>20070309
<FILER>
<COMPANY-DATA>
<CONFORMED-NAME>WASTE MANAGEMENT INC
<CIK>0000823768
<ASSIGNED-SIC>4953
<IRS-NUMBER>731309529
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>424B5
<ACT>33
<FILE-NUMBER>333-137526
<FILM-NUMBER>07683944
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>1001 FANNIN STREET
<STREET2>STE 4000
<CITY>HOUSTON
<STATE>TX
<ZIP>77002
<PHONE>7135126200
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>1001 FANNIN STREET
<STREET2>SUITE 4000
<CITY>HOUSTON
<STATE>TX
<ZIP>77002
</MAIL-ADDRESS>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>USA WASTE SERVICES INC
<DATE-CHANGED>19920703
</FORMER-COMPANY>
</FILER>
<DOCUMENT>
<TYPE>424B5
<SEQUENCE>1
<FILENAME>h44480b5e424b5.htm
<DESCRIPTION>PROSPECTUS SUPPLEMENT - REGISTRATION NO. 333-137526
<TEXT>
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<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><B>Filed Pursuant to Rule&nbsp;424(b)(5)<BR>
Registration Number 333-137526</B>
</DIV>


<DIV align="left" style="font-size: 12pt; margin-top: 6pt"><B><I>PROSPECTUS SUPPLEMENT<BR>
(To Prospectus dated September&nbsp;22, 2006)</I></B>

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<DIV align="center" style="font-size: 12pt; margin-top: 18pt"><B>215,000 SHARES</B>
</DIV>


<DIV align="center" style="font-size: 12pt; margin-top: 18pt"><B>WASTE MANAGEMENT, INC.<BR>
COMMON STOCK</B>
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><DIV align="center"><DIV style="font-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV>
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<DIV align="left" style="font-size: 10pt; margin-top: 18pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our common stock is listed on the New York Stock Exchange under the trading symbol &#147;WMI.&#148;
On March&nbsp;8, 2007, the last reported sale price of the common stock on the New York Stock Exchange
was $33.84 per share.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We are issuing the shares directly to a warrant holder upon exercise by such holder of eight
currently outstanding warrants. The warrants, originally issued in 1997, entitle the holder to
purchase an aggregate of 215,000 shares of our common stock at a purchase price of $19.3020 per
share.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We will use the net proceeds of approximately $4&nbsp;million from the sale of the shares for
general corporate purposes.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Investing in the common stock involves risks that are described in the &#147;Risk Factors&#148; section
of our periodic reports and incorporated in the prospectus dated September&nbsp;22, 2006 by reference to
the those reports.</B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES COMMISSION HAS
APPROVED OR DISAPPROVED OF THESE SECURITIES OR PASSED UPON THE ADEQUACY OR ACCURACY OF THIS
PROSPECTUS SUPPLEMENT. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.</B>
</DIV>

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<DIV align="left" style="font-size: 10pt; margin-top: 18pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>We expect to deliver the shares against payment therefor in Houston, Texas on or about
March&nbsp;9, 2007.</B>
</DIV>

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</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt">Prospectus Supplement dated March&nbsp;9, 2007
</DIV>



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