Exhibit 99.2

Mr. Robert D. Kunisch

23 Treadwell Court

Lutherville, MD  21093

July 24, 2008

Board of Directors

CSX Corporation

500 Water Street

Jacksonville, Florida 32202

I hereby tender my resignation as a director of CSX Corporation (the “Company”) effective at such time as Gilbert H. Lamphere advises either Michael Ward or Ned Kelly that, as required by Section 13.1-675E of the Virginia Stock Corporation Act, he consents to be elected to the board of directors of the Company by the board of directors.

July 24, 2008 /s/ Robert D. Kunisch  Robert D. Kunisch