United States
                       Securities and Exchange Commission
                             Washington, D.C. 20549

                                 Form U-13-60/A

                                  Annual Report
                                 For the Period

             Beginning January 1, 2001 and Ending December 31, 2001


                                     TO THE

                     U.S. SECURITIES AND EXCHANGE COMMISSION
                                       FOR

                        EXELON BUSINESS SERVICES COMPANY

                          A Subsidiary Service Company

Date of Incorporation               12/31/00
                     -----------------------------------------

State of Sovereign Power under which Incorporated or Organized    Pennsylvania
                                                              ------------------

Location of Principal Executive Offices of Reporting Company

                              10 South Dearborn St., Chicago, IL 60680-5379
                              ---------------------------------------------



Name, title, and address of officer to whom correspondence concerning this
report should be addressed:

     Matthew F. Hilzinger                      Vice-President and Controller
     --------------------                      -----------------------------
           (Name)                                        (Title)

                10 South Dearborn Street, Chicago, IL 60680-5379
                 ----------------------------------------------
                                    (Address)


Name of Principal Holding Company Whose Subsidiaries are served by
Reporting Company:

                               Exelon Corporation

On May 1, 2002, Exelon Corporation filed Form U-13-60 for the year ended
December 31, 2001. This filing amends Schedule V, Accounts Receivable from
Associate Companies, to reformat the information in accordance with instructions
to Form U-13-60 and Schedule XVII, Schedule of Expense by Department or Service
Function, to redistribute certain expenses in accordance with the SEC Uniform
System of Accounts.


LISTING OF AMENDED SCHEDULES Schedule of Account Page Description of Schedules and Accounts Number Number - ------------------------------------------------------------------------------------------- Accounts Receivable from Associate Companies Schedule V 3 Schedule of Expense by Department or Service Function Schedule XVII 4-6 2

ANNUAL REPORT OF EXELON BUSINESS SERVICES COMPANY For the Year Ended December 31, 2001 Amended Schedule V - Accounts Receivable from Associate Companies - continued (in thousands) Analysis of Convenience or Accommodation Payments during 2001: Amount Affiliate Paid AmerGen Energy Company, LLC $ 7 Exelon Energy, Inc. 1,238 Exelon Enterprises Company, LLC 3,379 Exelon Infrastructure Services, Inc. 2,876 Exelon Communications Company, LLC 239 Exelon Holdings Corp, Inc. 15 Exelon Generation Company LLC 31,722 PEC Financial Services, LLC 45 PECO Energy Company 79,332 Susquehanna Electric Company 398 Susquehanna Power Company 140 --------- Total Payments $ 119,391 ========= Convenience payments made for: Accounts payable system $ 32,050 Corporate credit card 47,271 Informational technology purchases 8,770 Postretirement trust 91,250 Receivable for NEIL reimbursement (59,950) --------- Total Payments $119,391 ========= 3

ANNUAL REPORT OF EXELON BUSINESS SERVICES COMPANY For the Year Ended December 31, 2001 Amended Schedule XVII - Schedule of Expense Distribution by Department or Service Function (in thousands) DEPARTMENT OR SERVICE FUNCTION Description Total Human Finance & Account of Items Amount Overhead Executive Planning Resources Accounting 920 Salaries and Wages $ 80,687 $ 6,618 $ 4,040 $ 9,495 $ 13,599 921 Office Supplies and Expenses 44,593 3,491 2,809 4,289 15,670 922 Administrative Expense Transferred -Credit - - - - - 923 Outside Services Employed 185,717 7,035 27,328 11,757 29,591 924 Property Insurance 15,560 - - 71 15,489 925 Injuries and Damages 450 - - 176 (51) 926 Employee Pensions and Benefits 28,605 30 1,854 4,506 3,371 928 Regulatory Commission Expense 2 - - - - 930.1 General Advertising Expense 9,686 121 33 28 - 930.2 Miscellaneous General Expense 12,016 549 155 710 6,873 931 Rents 9,442 72 55 - 151 932 Maintenance of Structures and Equipment 2,870 7 118 28 6 403 Depreciation and Amortization Expense 16,089 15 - - 2,954 408 Taxes Other Than Income Taxes 6,773 32 - 938 100 409 Income Taxes 10,278 - - - 10 410 Provision for Deferred Income Taxes (6,157) - - - - 411 Provision for Deferred Income Taxes - Cr 227 - - - - 411.5 Investment Tax Credit - - - - - 426.1 Donations 3,080 - - 125 29 426.5 Other Deductions 2,599 - - 6 1,314 427 Interest on Long-Term Debt - - - - - 430 Interest on Debt to Associate Companies 5,865 - - - 732 431 Other Interest Expense (146) 80 - - 17 --------- -------- --------- -------- -------- ------- TOTAL EXPENSES $ 428,236 $ - $ 18,050 $ 36,392 $ 32,129 $89,855 ========= ======== ========= ======== ======== ======= 4

ANNUAL REPORT OF EXELON BUSINESS SERVICES COMPANY For the Year Ended December 31, 2001 Schedule XVII - Schedule of Expense Distribution by Department or Service Function - continued (in thousands) DEPARTMENT OR SERVICE FUNCTION Description Internal Environ- Govern. Public Account of Items Audit mental Affairs Affairs Legal 920 Salaries and Wages $ 799 $ 532 $ 762 $ 1,556 $ 8,201 921 Office Supplies and Expenses 253 270 445 1,172 (558) 922 Administrative Expense Transferred -Credit - - - - - 923 Outside Services Employed 3,379 457 158 1,392 9,226 924 Property Insurance - - - - - 925 Injuries and Damages - - - - 860 926 Employee Pensions and Benefits - - - - 2,034 928 Regulatory Commission Expense - - - - 2 930.1 General Advertising Expense - - - 9,351 50 930.2 Miscellaneous General Expense - 80 283 1,149 2,666 931 Rents 98 93 2 4 - 932 Maintenance of Structures and Equipment - 1 - 1 70 403 Depreciation and Amortization Expense - - - - - 408 Taxes Other Than Income Taxes - - - - - 409 Income Taxes - - - - - 410 Provision for Deferred Income Taxes - - - - - 411 Provision for Deferred Income Taxes - Cr - - - - - 411.5 Investment Tax Credit - - - - - 426.1 Donations - - 2 2,850 - 426.5 Other Deductions - - 1,156 27 70 427 Interest on Long-Term Debt - - - - - 430 Interest on Debt to Associate Companies - - - - - 431 Other Interest Expense - - - - (205) --------- --------- --------- --------- --------- TOTAL EXPENSES $ 4,529 $ 1,433 $ 2,808 $ 17,502 $ 22,416 ========= ========= ========= ========= ========= 5

ANNUAL REPORT OF EXELON BUSINESS SERVICES COMPANY For the Year Ended December 31, 2001 Schedule XVII - Schedule of Expense Distribution by Department or Service Function - continued (in thousands) DEPARTMENT OR SERVICE FUNCTION Description Procure- Inform. Operational Account of Items ment Systems Support 920 Salaries and Wages $ 1,980 $ 17,365 $ 15,740 921 Office Supplies and Expenses 999 14,861 892 922 Administrative Expense Transferred -Credit - - - 923 Outside Services Employed 4,012 81,042 10,340 924 Property Insurance - - - 925 Injuries and Damages - - (535) 926 Employee Pensions and Benefits 262 4,748 11,800 928 Regulatory Commission Expense - - - 930.1 General Advertising Expense 2 - 101 930.2 Miscellaneous General Expense 2 7 (458) 931 Rents - 760 8,207 932 Maintenance of Structures and Equipment 1 46 2,592 403 Depreciation and Amortization Expense - 1,239 11,881 408 Taxes Other Than Income Taxes - - 5,703 409 Income Taxes - - 10,268 410 Provision for Deferred Income Taxes - - (6,157) 411 Provision for Deferred Income Taxes - Cr - - 227 411.5 Investment Tax Credit - - - 426.1 Donations 8 6 60 426.5 Other Deductions - - 26 427 Interest on Long-Term Debt - - - 430 Interest on Debt to Associate Companies - - 5,133 431 Other Interest Expense - (11) (27) --------- --------- ---------- TOTAL EXPENSES $ 7,266 $ 120,063 $ 75,793 ========= ========= ========== 6

ANNUAL REPORT OF EXELON BUSINESS SERVICES COMPANY Signature Clause Pursuant to the requirements of the Public Utility Holding Company Act of 1935 and the rules and regulations of the Securities and Exchange Commission issued thereunder, the undersigned company has duly caused this report to be signed on its behalf by the undersigned officer thereunto duly authorized. Exelon Business Services Company ---------------------------------------------------------------------- (Name of Reporting Company) By: /s/ Robert S. Shapard ------------------------------------------------------------ (Signature of Signing Officer) Robert S. Shapard, Executive Vice-President and Chief Financial Officer ------------------------------------------------------------------ (Printed Name and Title of Signing Officer) Date: September 26, 2003 ------------------ 7