Company: TCPA
Filing Date: 2025-02-13
Form Type: 6-K
Source: 0001232384-25-000007
Chunk: 0

Company: TRANSCANADA PIPELINES LTD
Filing Date: 2025-02-13
Form: 6-K
Chunk 0
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### SECURITIES AND EXCHANGE COMMISSION

#### Washington, D.C. 20549

#### FORM 6-K
<div align='center'>Report of Foreign Private Issuer

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

the Securities Exchange Act of 1934

For the month of February 2025</div>

#### TC Energy Corporation
<div align='center'>(Commission File No. 1-31690)</div>

#### TransCanada PipeLines Limited
<div align='center'>(Commission File No. 1-8887)

(Translation of Registrants’ Names into English)

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

(Address of Principal Executive Offices)</div>

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

<div align='center'>Form 20-F ☐ Form 40-F ☑</div>

Exhibit 99.1 to this report, furnished on Form 6-K, is furnished, not filed, and will not be incorporated by reference into any registration statement filed by the registrant under the Securities Act of 1933, as amended.

#### Explanatory Note
TransCanada PipeLines Limited (“TransCanada PipeLines”) is a wholly owned subsidiary of TC Energy Corporation (“TC Energy”). TransCanada PipeLines is relying on the continuous disclosure documents filed by TC Energy pursuant to an exemption from the requirements of National Instrument 51-102 - Continuous Disclosure Obligations and as provided in the decision of the Alberta Securities Commission and Ontario Securities Commission in Re TransCanada Corporation, 2019 ABASC 1 , issued on January 3, 2019. Consistent with the exemptive relief, information contained in this Form 6-K is that provided by TC Energy.

| EXHIBIT INDEX |

| 99.1 |     | A copy of the registrants' Code of Business Ethics Policy, as amended. |

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

Date: February 13, 2025

| TC ENERGY CORPORATION         |     |                                             |
| TRANSCANADA PIPELINES LIMITED |     |                                             |
| By:                           |     | /s/ Jane M. Br