SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

Report of Foreign Private Issuer

Pursuant to Rule 13a-16 or 15d-16 of

the Securities Exchange Act of 1934

For the month of ~~October~~February ~~2024~~2025

Commission File No. 1-8887

TransCanada PipeLines Limited

(Translation of ~~Registrant's~~Registrants’ ~~Name~~Names into English)

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

(Address of Principal Executive Offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

Form 20-F ☐o Form 40-F ☑þ

~~Exhibits~~Exhibit 99.1 ~~and 99.2~~ to this report, furnished on Form 6-K, ~~are~~shall ~~furnished, not filed, and will not~~ be incorporated by reference into ~~any~~the ~~registration~~following ~~statement~~Registration ~~filed~~Statements ~~by the registrant~~ under the Securities Act of 1933, as amended, of the registrant: Form F-10 (File Nos. 333-267323 and 333-283633).

EXHIBIT INDEX

99.1			Certificate of Amendment of TransCanada PipeLines Limited
99.2			Certificate of Amendment of TransCanada PipeLines Limited


99.1			Schedule of earnings coverage calculations at December 31, 2024.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the ~~registrant~~Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: Oct. 1, 2024


Date: February 14, 2025	TRANSCANADA PIPELINES LIMITED


	By:	/s/ Sean P. O'Donnell
		Sean P. O'Donnell
		Executive Vice-President, Strategy and Corporate Development and Chief Financial Officer


	By:	/s/ Yvonne Frame-Zawalykut
		Yvonne Frame-Zawalykut
		Vice-President and Corporate Controller

TRANSCANADA PIPELINES LIMITED By: /s/ Christine R. Johnston Christine R. Johnston Vice-President, Law and Corporate Secretary

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