# EDGAR Filing Document

**Accession Number:** 0002068372
**File Stem:** 9999999995-25-002183
**Filing Date:** 2025-7
**Character Count:** 1393
**Document Hash:** 29267f701a03292f645876ba8ebe0eb4
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**9999999995-25-002183.hdr.sgml**: 20250708

**ACCESSION NUMBER**: 9999999995-25-002183

**CONFORMED SUBMISSION TYPE**: EFFECT

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250707

**DATE AS OF CHANGE**: 20250708

**EFFECTIVENESS DATE**: 20250707

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** South Bow USA Infrastructure Holdings LLC
- **CENTRAL INDEX KEY:** 0002068372
- **STANDARD INDUSTRIAL CLASSIFICATION:** PIPE LINES (NO NATURAL GAS) [4610]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 932092930
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231
- **LEGAL ENTITY IDENTIFIER:** 254900Z1WAY7QFQ7O850

**FILING VALUES:**
- **FORM TYPE:** EFFECT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-288163
- **FILM NUMBER:** 251109466

**BUSINESS ADDRESS:**
- **STREET 1:** 251 LITTLE FALLS DRIVE
- **CITY:** WILMINGTON
- **STATE:** DE
- **ZIP:** 19808
- **BUSINESS PHONE:** 8324708822

**MAIL ADDRESS:**
- **STREET 1:** 920 MEMORIAL CITY WAY
- **STREET 2:** SUITE 800
- **CITY:** HOUSTON
- **STATE:** TX
- **ZIP:** 77024

### UNITED STATES
### SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## Notice of Effectiveness

**Date:** July 7, 2025

**Time:** 14:30:00

**Form Type:** S-4

---

**CIK:** 0002068372

**Company Name:** South Bow USA Infrastructure Holdings LLC

**File Number:** 333-288163