Exhibit 31.2

Principal Financial Officer’s Certifications

Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Thomas N. Hund, certify that:

1.  I have reviewed this annual report on Form 10-K of Burlington Northern Santa Fe Corporation;

2.  Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to

     make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the

     period covered by this report;

3.  Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material

     respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.  The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as

     defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act

     Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)  Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our

      supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made

      known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)  Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed

      under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of

      financial statements for external purposes in accordance with generally accepted accounting principles;

(c)  Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions

      about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on

      such evaluation; and

(d)  Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the

      registrant’s fourth fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s

      internal control over financial reporting; and

5.  The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial

     reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the

     equivalent functions):

(a)  All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which

      are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b)  Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s

      internal control over financial reporting.

	/s/  Thomas N. Hund
Date: February 14, 2008	Thomas N. Hund Executive Vice President and Chief Financial Officer