July
8, 2009
Division
of Corporation Finance
Washington,
DC
U.S.A. 20549
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TransCanada
PipeLines Limited
tel
403.920.7685
fax
403.920.2467
email
don_degrandis@transcanada.com
web
www.transcanada.com
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The
Company is responsible for the adequacy and accuracy of the disclosure in
the filings;
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Staff
comments or changes to disclosure in response to staff comments do not
foreclose the Commission from taking any action with respect to the
filings; and
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The
Company may not assert staff comments as a defense in any proceeding
initiated by the Commission or any person under the federal securities
laws of the United States.
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