The fact sheet describes key points about Vaughan Mainline Expansion Project.

This document provides a comprehensive report on a company's activities throughout the preceding year.

On Sept. 15, TC Energy and Columbia Gas Transmission’s Virginia Reliability Project (VRP) received a favorable environmental impact statement (EIS) by the Federal Energy Regulatory Commission (FERC). FERC’s findings also reflected the work of federal and state experts under the National Environmental Policy Act.

Coastal GasLink successfully completed a $7.15 billion refinancing of its existing construction credit facility through a Canadian private bond offering of First Lien Senior Secured Notes.

The Management’s Discussion and Analysis (MD&A) dated February 22, 2007 should be read in conjunction with the audited Consolidated Financial Statements of TransCanada PipeLines Limited (TCPL or the Company) and the notes thereto for the year ended December 31, 2006.