Sec Form 4 Filing - HAULTER ROBERT J @ CSX CORP - 2008-08-04

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person HAULTER ROBERT J 2. Issuer Name and Ticker or Trading Symbol CSX CORP [ CSX] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Senior VP-Human Resources (Last) (First) (Middle) CSX CORPORATION, 500 WATER STREET, 15TH FLOOR 3. Date of Earliest Transaction (MM/DD/YY) 08/04/2008 (Street) JACKSONVILLE, FL32202 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 08/04/2008 M 1,920 A $ 20.89 39,109 D Common Stock 08/04/2008 S 1,920 D $ 66.07 37,189 D Common Stock 46,975 I Executive Deferred Compensation Plan ( 1 ) Common Stock 481 I CSX Corporation Executives Stock Trust ( 2 ) Common Stock 3,140 I By wife Common Stock 1,943 I CSX Corporation 401(k) Plan ( 3 )

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Cod e (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Employee Stock Option (right to buy) $ 20.89 08/04/2008 M 1,920 04/18/2006 12/14/2008 Common Stock 1,920 $ 0 0 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other HAULTER ROBERT J CSX CORPORATION 500 WATER STREET, 15TH FLOOR JACKSONVILLE, FL32202 Senior VP-Human Resources Signatures Robert J. Haulter by Nathan D. Goldman, Attorney-in-Fact 08/06/2008 Signature of Reporting Person Date

Explanation of Responses:

( 1 )By Trustee, CSX Corporation Executive Deferred Compensation Plan. ( 2 )By Trustee, CSX Corporation Executives Stock Trust. ( 3 )By Trustee, CSX Corporation Savings Thrift Plan. Reflects equivalent shares of cash value held in CSX Stock Fund, which amounts will fluctuate dependent upon daily net asset value of the fund.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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