TransCanada Annual Meeting and First Quarter 2002 Teleconference and Web Cast Advisory

CALGARY, Alberta – April 19, 2002 – (TSE:TRP) (NYSE:TRP) - TransCanada PipeLines Limited will hold its Annual Meeting of Shareholders beginning at 10:30 a.m. (Mountain) / 12:30 p.m. (Eastern) on Friday, April 26, 2002. The meeting will take place at the Roundup Centre (13th Avenue and Third Street S.E.) in Calgary, Alberta. A live audio web cast of the meeting will be available on TransCanada’s web site at www.transcanada.com beginning at 10:30 a.m. (Mountain) / 12:30 p.m. (Eastern). The meeting web cast will be archived and available for replay.

TransCanada will release its first quarter 2002 financial results in the morning of Friday, April 26, 2002. The company will hold a teleconference April 26 at 1 p.m. (Mountain) / 3 p.m. (Eastern) to discuss the first quarter 2002 financial results and general developments and issues concerning the company. Analysts, members of the media and other interested parties wanting to participate in the call should dial 1-800-273-9672 or 416-695-5806 (Toronto area) at least 10 minutes prior to the start of the call. No pass code is required. A replay of the teleconference will be available two hours after the conclusion of the call until midnight, May 3, 2002, by dialing 1-800-408-3053 or 416-695-5800 (Toronto area) and entering passcode 1134826.

The conference will begin with a short address by members of TransCanada’s executive management, followed by a question and answer period for investment analysts. A question and answer period for members of the media unable to attend the Annual Meeting of Shareholders will immediately follow. A live audio web cast of the teleconference will also be available on TransCanada’s web site. The teleconference web cast will be archived and available for replay.

TransCanada is a leading North American energy company. It is focused on natural gas transmission and power services with employees who are expert in these businesses. The company’s network of approximately 38,000 kilometres of pipeline transports the majority of western Canada’s natural gas production to the fastest growing markets in Canada and the United States. TransCanada owns, controls or is developing a total of approximately 2,250 megawatts of power -- an amount of power that can meet the needs of more than two million average households. The company’s common shares trade under the symbol TRP on the Toronto and New York stock exchanges. Visit us on the internet at www.transcanada.com for more information.

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For further information, please contact:

Media Inquiries:
Glenn Herchak / Kurt Kadatz
(403) 920-7859

Analyst Inquiries:
David Moneta
(403) 920-7917