<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>confirmingstatementdss.txt
<TEXT>
CONFIRMING STATEMENT


This Statement confirms that the undersigned, David S. Sutherland, has
authorized and designated either Deborah A. Golden, Peter J. Falconer,
Bronna L. Wasserman, Marland O. Webb or Lisa M. Ibarra to execute and
file on the undersigneds behalf all Forms 3, 4 and 5 including any
amendments thereto that the undersigned may be required to file with
the US Securities and Exchange Commission as a result of the undersigneds
ownership of or transactions in securities of GATX Corporation.  The
authority of Deborah A. Golden, Peter J. Falconer, Bronna L. Wasserman,
Marland O. Webb and Lisa M. Ibarra under this Statement shall continue
until the undersigned is no longer required to file Forms 3, 4 and 5 with
regard to the undersigneds ownership of or transactions in securities of
GATX Corporation, unless earlier revoked in writing.  The undersigned
acknowledges that neither Deborah A. Golden, Peter J. Falconer, Bronna L.
Wasserman, Marland O. Webb, nor Lisa M. Ibarra is assuming any of the
undersigneds responsibilities to comply with Section 16 of the
Securities Exchange Act of 1934.



Date: July 27, 2007


_______________________________
/s/ David S. Sutherland

</TEXT>
</DOCUMENT>
