The document listed below in this Section and filed as Exhibit 99.1 to this Form 6-K is hereby filed with the Securities and Exchange Commission for the purpose of being and hereby is incorporated by reference into Registration Statement on Form F-9 (Reg. No. 333-121265) under the Securities Act of 1933, as amended.

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.

Prince Rupert Gas Transmission is a proposed 900 km (559 mile) pipeline that will deliver natural gas from a point near Hudson’s Hope to the Pacific NorthWest LNG Facility near Prince Rupert, B.C., Canada.

In accordance with Certificate Condition 21 and Condition 5 of the Order, NGTL encloses the Commitment Tracking Table for the Project. The reporting period for this submission is September 15, 2016 to October 15, 2016.

In accordance with Certificate Condition 21 and Condition 5 of the Order, NGTL encloses the Commitment Tracking Table for the Project. The reporting period for this submission is October 15, 2016 to November 15, 2016.

In accordance with Certificate Condition 21 and Condition 5 of the Order, NGTL encloses the Commitment Tracking Table for the Project. The reporting period for this submission is December 15, 2016 to January 15, 2017.

In accordance with Certificate Condition 21 and Condition 5 of the Order, NGTL encloses the Commitment Tracking Table for the Project. The reporting period for this third submission is May 15, 2015 to October 15, 2015.

Spanning more than 420 km (261 miles) from Tula, Hidalgo, and ends in Villa de Reyes, San Luis Potosí, the completed Villa de Reyes Pipeline will transport natural gas to power generation facilities in Central Mexico.

The Tamazunchale Pipeline is a 370 km (230 miles) natural gas pipeline, comprised of two segments: Naranjos – El Sauz (130 km) and Tamazunchale - El Sauz, better known as the Tamazunchale Extension (240 km). The pipeline serves communities on the East Coast of Mexico and Central Mexico.

The Guadalajara Pipeline connects to an LNG facility located near Manzanillo on the Pacific Coast of Mexico. It has capacity to transport 500 million cubic feet of natural gas per day to a nearby power plant and transport 320 million cubic feet per day to a pipeline system near Guadalajara.