Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement No. 333-264739 on Form S-3 of our report dated February 26, 2024, relating to the consolidated financial statements of Burlington Northern Santa Fe, LLC and subsidiaries, appearing in this Annual Report on Form 10-K for the year ended December 31, 2023.

/s/ DELOITTE & TOUCHE LLP

Fort Worth, Texas

February 26, 2024

E-15