CSX (CSX) 8-K Entry into a Material Definitive Agreement

Exhibit 12.1

Computation of Ratio of Earnings to Fixed Charges

CSX Corporation

Ratio of Earnings to Fixed Charges

(Millions of Dollars)

	For the Nine Months Ended			For the Fiscal Years Ended
	September 30, 2011			Dec. 31, 2010			Dec. 25, 2009			Dec. 26, 2008			Dec. 28, 2007			Dec. 29, 2006
EARNINGS:
Earnings before Income Taxes	$	2,176		$	2,546		$	1,746		$	2,332		$	1,935		$	1,841
Interest Expense		412			557			558			519			417			392
Amortization of debt discount		—			—			—			—			—			4
Interest Portion of Fixed Rent		15			21			26			32			38			47
Undistributed Earnings of Unconsolidated Subsidiaries		(21	)		(33	)		(42	)		(75	)		(61	)		(48	)
Earnings, as Adjusted	$	2,581		$	3,091		$	2,288		$	2,808		$	2,329		$	2,236
FIXED CHARGES:
Interest Expense	$	412		$	557		$	558		$	519		$	417		$	392
Capitalized Interest		7			8			7			7			5			3
Amortization of debt discount		—			—			—			—			—			4
Interest Portion of Fixed Rent		15			21			26			32			38			47
Fixed Charges	$	433		$	586		$	591		$	558		$	460		$	446
Ratio of Earnings to Fixed Charges		5.96x			5.3x			3.9x			5.0x			5.1x			5.0x