SEC Info - Transcanada Pipelines Ltd. - ‘F-10EF’ on 1/17/24

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Transcanada Pipelines Ltd. – ‘F-10EF’ on 1/17/24 – ‘EX-5.3’

On: Wednesday, 1/17/24, at 5:57pm ET · As of: 1/18/24 · Accession #: 1104659-24-4568 · File #: 333-276558

  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

 1/18/24  Transcanada Pipelines Ltd.        F-10EF      1/17/24    7:540K                                   Toppan Merrill/FA

Registration Statement by a Canadian Issuer (Immediately Effective) — Form F-10

Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: F-10EF      Registration Statement by a Canadian Issuer         HTML    305K 
                (Immediately Effective)                                          
 2: EX-5.1      Opinion of Counsel re: Legality                     HTML      6K 
 3: EX-5.2      Opinion of Counsel re: Legality                     HTML      9K 
 4: EX-5.3      Opinion of Counsel re: Legality                     HTML      8K 
 7: EX-FILING FEES  Filing Fees                                     HTML     24K 
 5: EX-7.3      Correspondence from an Accountant re: Non-Reliance  HTML     55K 
                on a Previously Issued Audit Report or Completed                 
                Interim Review                                                   
 6: EX-7.4      Correspondence from an Accountant re: Non-Reliance  HTML     52K 
                on a Previously Issued Audit Report or Completed                 
                Interim Review

‘EX-5.3’ — Opinion of Counsel re: Legality

This Exhibit is an HTML Document rendered as filed. [ Alternative Formats ]

Exhibit 5.3

Mayer Brown LLP

201 S. Main St.
Salt Lake City, UT 84111

	United States of America T: +1 801 907 2700 www.mayerbrown.com

January 17, 2024

TransCanada PipeLines Limited 450 - 1 Street S.W. Calgary, Alberta, Canada, T2P 5H1

Ladies and Gentlemen:

We hereby consent to the references to this firm under the captions “Legal Matters” and “Documents Filed as Part of the Registration Statement” in the prospectus included as part of the registration statement on Form F-10 of TransCanada PipeLines Limited.

In giving this consent, we do not thereby admit that we are in the category of persons whose consent is required under Section 7 of the Securities Act of 1933, as amended.

	Very truly yours,

	/s/ *Mayer Brown LLP*

	Mayer Brown LLP

Mayer Brown is a global services provider comprising an association of legal practices that are separate entities including
Mayer Brown LLP (Illinois, USA), Mayer Brown International LLP (England), Mayer Brown (a Hong Kong partnership)
and Tauil & Chequer Advogados (a Brazilian partnership).

Dates Referenced Herein and Documents Incorporated by Reference

This ‘F-10EF’ Filing	Date	Other Filings

Filed as of:	1/18/24	F-X
Filed on:	1/17/24	F-X
		List all Filings

4 Previous Filings that this Filing References

  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

11/08/23  TC Energy Corp.                   6-K         9/30/23    8:3.4M
 3/17/23  TC Energy Corp.                   6-K         3/01/23    2:26M
 2/14/23  TC Energy Corp.                   40-F       12/31/22  185:60M
 9/21/10  Transcanada Pipelines Ltd.        6-K         9/20/10    3:959K                                   Toppan Merrill/FA

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Filing Submission 0001104659-24-004568 – Alternative Formats (Word / Rich Text, HTML, Plain Text, et al.)