UNITED STATES

                       SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549


                                    FORM 11-K


               [x] ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

                                       OR

             [ ] TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934


                      For the year ended December 31, 2002


                          Commission file number 1-8022



                    TAX SAVINGS THRIFT PLAN FOR EMPLOYEES OF
                                 CSX CORPORATION
                            AND AFFILIATED COMPANIES



                                 CSX CORPORATION
                             A Virginia Corporation
                  IRS Employer Identification Number 62-1051971
                                500 Water Street
                                   15th Floor
                           Jacksonville, Florida 32202
                            Telephone (904) 359-3200





            TAX SAVINGS THRIFT PLAN FOR EMPLOYEES OF CSX CORPORATION
                            AND AFFILIATED COMPANIES
                              FINANCIAL STATEMENTS
                        AS OF DECEMBER 31, 2002 and 2001


CONTENTS
                                                                     
Report of Independent Certified Public Accountants...................     3

Statements of Net Assets Available for Benefits......................     4

Statement of Changes in Net Assets Available for Benefits............     5

Notes to Financial Statements........................................  6-12

Signature............................................................    13

Exhibit 23-Consent of Ernst & Young LLP,
           Independent Certified Public Accountants..................   I-1






               Report of Independent Certified Public Accountants

The Finance Committee of the Board of Directors
Tax Savings Thrift Plan for Employees of
CSX Corporation and Affiliated Companies
CSX Corporation
Jacksonville, Florida

We have audited the accompanying statements of net assets available for benefits
of the Tax Savings Thrift Plan for Employees of CSX Corporation and Affiliated
Companies as of December 31, 2002 and 2001, and the related statement of changes
in net assets available for benefits for the year ended December 31, 2002. These
financial statements are the responsibility of the Plan's management. Our
responsibility is to express an opinion on these financial statements based on
our audits.

We conducted our audits in accordance with auditing standards generally accepted
in the United States. Those standards require that we plan and perform the audit
to obtain reasonable assurance about whether the financial statements are free
of material misstatement. An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statements. An audit
also includes assessing the accounting principles used and significant estimates
made by management, as well as evaluating the overall financial statement
presentation. We believe that our audits provide a reasonable basis for our
opinion.

In our opinion, the financial statements referred to above present fairly, in
all material respects, the net assets available for benefits of the Plan as of
December 31, 2002 and 2001, and the changes in its net assets available for
benefits for the year ended December 31, 2002, in conformity with accounting
principles generally accepted in the United States.

                                                    /s/ ERNST & YOUNG LLP


Jacksonville, Florida
June 23, 2003

                                       3


            TAX SAVINGS THRIFT PLAN FOR EMPLOYEES OF CSX CORPORATION
                            AND AFFILIATED COMPANIES
                 STATEMENTS OF NET ASSETS AVAILABLE FOR BENEFITS
                             (Dollars in Thousands)


                                                         December 31
                                                     2002            2001
                                                 ---------------------------
                                                             
ASSETS
Investment in Master Trust, at fair
 value (see Note 3)                              $642,253         $723,476

Receivables:
    Employer contributions                             683              658
    Member contributions                             2,082            1,984
                                                 ----------------------------

TOTAL ASSETS                                       645,018          726,118

LIABILITY

Accrued expenses                                       293              333
                                                 -----------------------------

NET ASSETS AVAILABLE FOR BENEFITS                 $644,725         $725,785
                                                 =============================


See Notes to Financial Statements.

                                       4


            TAX SAVINGS THRIFT PLAN FOR EMPLOYEES OF CSX CORPORATION
                            AND AFFILIATED COMPANIES
            STATEMENT OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS
                      FOR THE YEAR ENDED DECEMBER 31, 2002
                             (Dollars in Thousands)


                                                                
ADDITIONS
    Employer contributions                                          $  8,394
    Member contributions                                              26,622
                                                                   ---------
                                                                      35,016

DEDUCTIONS
    Net loss on Investment in Master Trust                            74,251
    Distributions to members                                          40,798
    Fees and expenses                                                  1,027
                                                                  ----------

                                                                     116,076
                                                                  ----------

NET DECREASE                                                         (81,060)

Net Assets Available for Benefits at Beginning of Year               725,785
                                                                  -----------

Net Assets Available for Benefits at End of Year                    $644,725
                                                                  ===========


See Notes to Financial Statements.

                                       5


            TAX SAVINGS THRIFT PLAN FOR EMPLOYEES OF CSX CORPORATION
                            AND AFFILIATED COMPANIES
                          NOTES TO FINANCIAL STATEMENTS
                                DECEMBER 31, 2002
                             (Dollars in Thousands)


NOTE 1 - DESCRIPTION OF THE PLAN

The following description of the Tax Savings Thrift Plan for Employees of CSX
Corporation and Affiliated Companies (the Plan) provides only general
information. Members should refer to the Summary Plan Description and the Plan
Document for a more complete description of the Plan's provisions.

General: The Plan is a defined contribution plan covering all full-time salaried
employees and certain non-union hourly employees of CSX Corporation (CSX) and
adopting affiliated companies (collectively, the Company or Plan Sponsor).
Effective January 1, 2002, CSX established the Plan as an Employee Stock
Ownership Plan (ESOP) designed to comply with Section 4975(e)(7) of the Internal
Revenue Code of 1986, as amended and is subject to the provisions of the
Employee Retirement Income Security Act of 1974 (ERISA), as amended.

Contributions: Effective January 1, 2002, the Plan was amended to allow a member
to contribute from 1% up to 50%, (in 1% multiples) of eligible compensation, as
defined by the Plan, on a pre-tax or after-tax basis. Prior to January 1, 2002,
members could contribute a maximum of 15% of eligible compensation. Members who
are not eligible to participate in the Company's Supplementary Savings and
Incentive Award Deferral Plan may also contribute up to 50% of any incentive
compensation to the Plan. Subject to certain limitations, members may reinvest
distributions from another qualified plan or Individual Retirement Account.
Members may change percent of contribution and investment options daily.

The Company contributes amounts equal to 50% of the first 6% of the member's
pre-tax or after-tax eligible contributions, as defined by the Plan. In 2002,
Company contributions were funded from the CSX Corporation rabbi trust account
which holds CSX common stock and cash. Shares to fund the contributions may be
purchased throughout the year and held by CSX Corporation in a rabbi trust until
they are contributed to the Plan and credited to the members' accounts. Member
incentive compensation contributions are not matched. Additional amounts may be
contributed at the option of the Company's Board of Directors.

                                       6


            TAX SAVINGS THRIFT PLAN FOR EMPLOYEES OF CSX CORPORATION
                            AND AFFILIATED COMPANIES
                    NOTES TO FINANCIAL STATEMENTS (CONTINUED)
                                DECEMBER 31, 2002
                             (Dollars in Thousands)


NOTE 1 - DESCRIPTION OF THE PLAN (Continued)

Diversification: The Plan was amended effective May 1, 2002 to allow all members
to immediately diversify the nonmember-directed contributions to the CSX Stock
Fund to other investment options offered under the Plan. Prior to May 1, 2002,
the Plan was amended effective January 1, 2002 to change the age requirement for
a member to diversify nonmember-directed contributions from age 55 to age 50.

Member Accounts: Each member's account is credited with the member's
contributions and allocations of (a) the Company's contributions and (b) Plan
earnings, and is charged with an allocation of administrative expenses. The
benefit to which a member is entitled is the benefit that can be provided from
the member's account.

Vesting:  Members are 100% vested in their accounts.

Loans: Members may borrow from their accounts in amounts equal to no more than
the lesser of $50 in an aggregate amount of all loans from the Plan or 50% of
their vested account balances. Loan terms range from one to five years unless
the loan is to be used in conjunction with the purchase of a primary residence.
The loans are secured by the balance in the member's account and bear interest
at the prime rate in effect at CitiBank at the beginning of the quarter in which
the loan originated. Principal and interest are paid ratably through payroll
deductions.

Dividends: Dividends paid on shares of Company stock held in a member's account
are reinvested in shares of Company stock. Effective January 1, 2002, a member
or spousal beneficiary may elect to have dividends paid to them in cash. Any
change in an election will apply only to ex-dividend dates occurring after the
date such election is received. A member who does not make a timely election
will have the dividends paid to their account and reinvested in shares of
Company stock.

Payment of Benefits: Upon termination of service, a member may receive a
lump-sum amount equal to the vested value of his or her account, or upon
disability or retirement, elect to receive monthly installments over a 240-month
period. Surviving spouses of retired or disabled members may elect to continue
or initiate monthly installments. A member with an account balance of $5 or less
will be paid in lump-sum.

Plan Termination: Although it has not expressed any intent to do so, the Company
has the right under the Plan to discontinue its contributions at any time and to
terminate the Plan subject to the provisions of ERISA. In the event of Plan
termination or partial termination, members will remain 100% vested in their
accounts.

                                       7


            TAX SAVINGS THRIFT PLAN FOR EMPLOYEES OF CSX CORPORATION
                            AND AFFILIATED COMPANIES
                    NOTES TO FINANCIAL STATEMENTS (CONTINUED)
                                DECEMBER 31, 2002
                             (Dollars in Thousands)


NOTE 1 - DESCRIPTION OF THE PLAN (Continued)

Administrative expenses: The administrative expenses of the Plan are paid by the
Company or from Plan funds as the Plan Sponsor directs. All of the
administrative expenses of the Plan during the year ended December 31, 2002 were
paid from Plan funds.

NOTE 2 - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation: The financial statements have been prepared under the
accrual method of accounting in accordance with accounting principles generally
accepted in the United States.

Use of Estimates: The preparation of financial statements in conformity with
accounting principles generally accepted in the United States requires
management to make estimates that affect the amounts reported in the financial
statements and accompanying notes. Actual results could differ from those
estimates.

NOTE 3 - INVESTMENT IN MASTER TRUST

All investments of the Master Trust are held by The Northern Trust Company, the
Master Trust's trustee.

At December 31, 2002 and 2001, the Plan's interest in the net assets of the
Master Trust was approximately 69%.

Investments in CSX Common Stock (stated at fair value) are valued at the last
reported sales price on the last business day of the year. Investments in mutual
funds are measured by quoted market prices and are reported at aggregate fair
value at year-end. Synthetic guaranteed investment contracts (defined on page
10) are reported at fair value, which in the case of such contracts approximates
contract value. Member loans are valued at their outstanding balances, which
approximate fair value.

Purchases and sales of securities are recorded on a trade-date basis. Interest
income is recorded on the accrual basis. Dividends are recorded on the
ex-dividend date.

                                       8


            TAX SAVINGS THRIFT PLAN FOR EMPLOYEES OF CSX CORPORATION
                            AND AFFILIATED COMPANIES
                    NOTES TO FINANCIAL STATEMENTS (CONTINUED)
                                DECEMBER 31, 2002
                             (Dollars in Thousands)


NOTE 3 - INVESTMENT IN MASTER TRUST (Continued)

Summarized financial information of the Master Trust is presented below:


                                                          December 31
                                                     2002              2001
                                                 ----------------------------
                                                            
Assets:
   Accrued income                                 $      7        $       15

   Investments at fair value:
     Cash and cash equivalents                       4,536             6,327
     Mutual funds:
       Fidelity Equity-Income Fund                  67,450            90,403
       Vanguard Institutional Index Fund           101,505           140,309
       Twentieth Century Select Fund                64,201            91,642
       Other                                        51,487            58,760
     CSX Corporation common stock                  323,124           399,644
     Other                                         266,709           208,441
     Collective trust fund                          27,510            36,313
     Loans to members                               27,028            24,761
                                                 ----------------------------
Total assets                                       933,557         1,056,615

Liabilities:
   Due to brokers                                      518                 -
   Accrued expenses                                    165                 -
                                                 ----------------------------
Total Master Trust net assets                     $932,874        $1,056,615
                                               ============================

                                      9


            TAX SAVINGS THRIFT PLAN FOR EMPLOYEES OF CSX CORPORATION
                            AND AFFILIATED COMPANIES
                    NOTES TO FINANCIAL STATEMENTS (CONTINUED)
                                DECEMBER 31, 2002
                             (Dollars in Thousands)


NOTE 3 - INVESTMENT IN MASTER TRUST (Continued)

Investment income and expenses are allocated to each plan based upon its
pro-rata share in the net assets of the Master Trust. Investment income (loss)
for the Master Trust for the year ended December 31, 2002 is as follows:

  Net appreciation (depreciation) in fair value of investments determined by
  quoted market prices:
                                                               
     Mutual funds                                                 $ (79,737)
     CSX Corporation common stock                                   (73,247)
     Collective trust fund                                            1,421
                                                                  -----------
                                                                   (151,563)

  Interest and dividend income                                       24,471
                                                                  -----------
Investment loss for the Master Trust                              $(127,092)
                                                                  ===========

Synthetic guaranteed investment contracts (SICs), included above in other
investments, represent a diversified portfolio of primarily corporate and
government bonds held in the name of the Master Trust in conjunction with a
corresponding contract with the issuer of the SIC to provide a variable rate of
return (based on investment experience and reset quarterly) on the cost of the
investment. The crediting rate for the AIG Life Contract and the JP Morgan
Contract at December 31, 2002 was 5.42% and 5.26%, respectively (6.17% and
6.19%, respectively, at December 31, 2001). The average crediting rate during
2002 was 5.92% for the AIG Life Contract and 5.94% for the J.P. Morgan Contract.
As of December 31, 2002, detail regarding the SICs is as follows:


                                                     AIG Life    JP Morgan
                                                     Contract     Contract
                                                    ------------------------

                                                             
Fair value of investments                            $146,179      $138,947
Fair value of corresponding contract                   (8,774)       (9,643)
                                                    ------------------------

Contract value                                       $137,405      $129,304
                                                    ========================

                                       10


            TAX SAVINGS THRIFT PLAN FOR EMPLOYEES OF CSX CORPORATION
                            AND AFFILIATED COMPANIES
                    NOTES TO FINANCIAL STATEMENTS (CONTINUED)
                                DECEMBER 31, 2002
                             (Dollars in Thousands)


NOTE 4 - NONMEMBER-DIRECTED INVESTMENTS

As stated in Note 1 (Diversification), the plan was amended May 1, 2002 to allow
members to reallocate their nonmember-directed contributions to the CSX Stock
Fund. Therefore, as of May 1, 2002 there were no nonmember-directed investments.

Information about the net assets and the significant components of the changes
in net assets relating to the nonmember-directed investments is as follows:

                                                             
  Net assets at December 31, 2001:
     CSX Corporation common stock                               $125,629

     Change in net assets:
        Contributions                                              2,803
        Dividends and interest                                       351
        Transfers to other funds                                  (2,750)
        Net appreciation in fair value of CSX stock                4,345
        Distributions to participants                             (2,321)
        Reclassification to member-directed investments
          on May 1, 2002                                        (128,057)
                                                               -----------

  Net assets at December 31, 2002                               $      -
                                                               ============

NOTE 5 - RELATED PARTY TRANSACTIONS

CSX and its subsidiaries provide the Plan with certain management and accounting
services. During the year ended December 31, 2002, the Master Trust reimbursed
CSX and its subsidiaries approximately $116 for these services.

During the year ended December 31, 2002, the Master Trust received cash
dividends from investments in CSX common stock of $4,474. The Plan's share of
these dividends was $2,260.

The Trustee, Northern Trust Company, routinely invests assets in its Collective
Short-Term Investment Fund. During the year ended December 31, 2002, the Master
Trust earned interest of $110 for transactions with this fund, a portion of
which was allocated to the Plan based upon the Plan's pro-rata share in the net
assets of the Master Trust and included in net loss in investment in Master
Trust in the statement of changes in net assets available for benefits.


                                       11


            TAX SAVINGS THRIFT PLAN FOR EMPLOYEES OF CSX CORPORATION
                            AND AFFILIATED COMPANIES
                    NOTES TO FINANCIAL STATEMENTS (CONTINUED)
                                DECEMBER 31, 2002
                             (Dollars in Thousands)

NOTE 6 - INCOME TAX STATUS

The Plan has received a determination letter from the Internal Revenue Service
dated March 12, 2002, stating that the Plan is qualified under Section 401(a) of
the Internal Revenue Code and, therefore, the related trust is exempt from
taxation. Subsequent to this issuance of the determination letter, the Plan was
amended. Once qualified, the Plan is required to operate in conformity with the
Code to maintain its qualification. The Plan Sponsor believes the Plan is being
operated in compliance with the applicable requirements of the Code and,
therefore, believes that the Plan, as amended, is qualified and the related
trust is tax exempt.

                                       12



                                    SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the
administrative committee members have duly caused this annual report to be
signed on its behalf by the undersigned hereunto duly authorized.


                                TAX SAVINGS THRIFT PLAN FOR
                                EMPLOYEES OF CSX CORPORATION AND
                                AFFILIATED COMPANIES

                                By: /s/ Carolyn T. Sizemore
                                ---------------------------
                                Carolyn T. Sizemore
                                Vice President and Controller
                                CSX Corporation
                                (Plan Sponsor)

Date:  June 23, 2003

                                       13