<SUBMISSION>
<ACCESSION-NUMBER>0000950129-07-002396
<TYPE>424B5
<PUBLIC-DOCUMENT-COUNT>1
<FILING-DATE>20070509
<DATE-OF-FILING-DATE-CHANGE>20070509
<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>07831553
</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>h46543b5e424b5.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: 10pt; margin-top: 6pt"><B><I>PROSPECTUS SUPPLEMENT<BR>
(To Prospectus dated September&nbsp;22, 2006)</I></B>

</DIV>

<DIV align="center" style="font-size: 12pt; margin-top: 18pt"><B>12,811 SHARES</B>
</DIV>


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


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our common stock is listed on the New York Stock Exchange under the trading symbol &#147;WMI.&#148; On
May&nbsp;8, 2007, the last reported sale price of the common stock on the New York Stock Exchange was
$37.98 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 an
outstanding warrant. The warrant, originally issued in 1998, entitles the holder to purchase an
aggregate of 12,811 shares of our common stock at a purchase price of $22.6740 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 $290,476.61 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>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>We expect to deliver the shares against payment therefor in Houston, Texas on or about May&nbsp;10,
2007</B>
</DIV>

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



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