SECURITIES AND EXCHANGE COMMISSION Washington, DC FORM U-6B-2 Certificate of Notification Filed by a registered holding company or subsidiary thereof pursuant to Rule U-20-(d) [Reg. Section 250.20, P. 36,652] or U-47 [Reg. Section 250.47, P. 36,620] adopted under the Public Utility Holding Company Act of 1935. Certificate is filed by: Ameren Corporation (AMC), Ameren Services Company (AMS), Ameren Energy, Inc. (AME), CIPSCO Investment Company (CIC), Ameren Energy Communications, Inc. (AEC), Ameren ERC, Inc. (ERC), Ameren Energy Resources Company (AER), Illinois Materials Supply Co. (IMS), Ameren Energy Generating Company (AEG), Ameren Energy Marketing Company (AEM), Ameren Energy Fuels and Services Company (AFS), Ameren Energy Development Company (AED), Union Electric Development Corporation (UEDC) and Ameren Development Company (ADC). This certificate is notice that the above named companies have issued, renewed or guaranteed the security or securities described herein which issue, renewal or guaranty was exempted from the provisions of Section 6(a) of the Act and was neither the subject of a declaration or application on Form U-1 nor included within the exemption provided by Rule U-48 [Reg. Section 250.48, P. 36,621]. 1. Type of securities ("draft", "promissory note"): Promissory Notes. 2. Issue, renewal or guaranty: Issue. 3. Principal amount of each security: A non-utility money pool agreement ("Agreement") allows non-utility subsidiaries of AMC to contribute and/or borrow funds without going to an external provider or creditor. The principal amount is limited only by cash available. Funds are borrowed and/or repaid daily as cash needs dictate. See Attachments A (Contributions to the Non-Utility Money Pool) and B (Loans from Non-Utility Money Pool) for daily outstanding contributions and loans. 4. Rate of interest per annum of each security: Rates varied daily along with money market rates, as defined in the Agreement. (See Attachment C for daily rates.) 5. Date of issue, renewal, or guaranty of each security: Various. (See Attachments A and B.) 6. If renewal of security, give date of original issue: Not applicable. 7. Date of maturity of each security: All loans were made for one day, or in the case of Friday borrowings, until the next work day, and repaid or rolled over the next business days, as need dictated. (See attached Attachments A and B.) 8. Name of the person to whom each security was issued, renewed or guaranteed: Not applicable. 9. Collateral given with each security: None. 10. Consideration received for each security: Interest on loan amount. 11. Application of proceeds of each security: a) Loaned as needed to AME. (See Attachment B) b) Loaned as needed to AEC. (See Attachment B) c) Loaned as needed to ERC. (See Attachment B) d) Loaned as needed to AER. (See Attachment B) e) Loaned as needed to AEG. (See Attachment B) f) Loaned as needed to IMS. (See Attachment B) g) Loaned as needed to AED. (See Attachment B) h) Loaned as needed to AEM. (See Attachment B) i) Loaned as needed to AFS. (See Attachment B) j) Loaned as needed to ADC. (See Attachment B) k) Loaned as needed to CIC. (See Attachment B) 12. Indicate by a check after the applicable statement below whether the issue, renewal or guaranty of each security was exempt from the provisions of Section 6(a) because of: a) the provisions contained in the first sentence of Section 6(b): Not applicable. b) the provisions contained in the fourth sentence of Section 6(b): Not applicable. c) the provisions contained in any rule of the Commission other than Rule U-48: [X]. 13. If the security or securities were exempt from the provisions of Section 6(a) by virtue of the first sentence of Section 6(b), give the figures which indicate that the security or securities aggregate (together with all other than outstanding notes and drafts of a maturity of nine months or less, exclusive of days of grace, as to which such company is primarily or secondarily liable) not more than 5 percentum of the principal amount and par value of the other securities of such company then outstanding. (Demand notes, regardless of how long they may have been outstanding, shall be considered as maturing in not more than nine months for purposes of the exemption from Section 6(a) of the Act granted by the first sentence of Section 6(b)): Not applicable. 14. If the security or securities are exempt from the provisions of Section 6(a) because of the fourth sentence of Section 6(b), name the security outstanding on January 1, 1935, pursuant to the terms of which the security or securities herein described have been issued. Not applicable. 15. If the security or securities are exempt from the provisions of Section 6(a) because of any rule of the Commission other than Rule U-48 [Reg. ss. 250.48, P. 36,621] designate the rule under which exemption is claimed. Rule 52. /s/ Jerre E. Birdsong -------------------------------------------- Jerre E. Birdsong Vice President and Treasurer Ameren Corporation Dated: February 21, 2003 Attachment A Contributions to the Non-Utility Money Pool Outstanding Amounts (Thousands of Dollars) Date AEG AEM AMC UEDC Total Beg Bal 31,500 3,300 277,270 1,400 313470 10/01/02 30,800 3,800 277,270 1,400 313270 10/02/02 30,300 3,800 275,470 1,400 310970 10/03/02 30,200 3,800 275,770 1,200 310970 10/04/02 29,600 3,800 276,670 1,200 311270 10/05/02 29,600 3,800 276,670 1,200 311270 10/06/02 29,600 3,800 276,670 1,200 311270 10/07/02 28,600 3,800 276,270 1,200 309870 10/08/02 28,200 3,800 276,670 1,200 309870 10/09/02 24,200 3,800 267,870 1,200 297070 10/10/02 20,500 3,800 281,870 1,200 307370 10/11/02 19,800 3,400 283,470 1,200 307870 10/12/02 19,800 3,400 283,470 1,200 307870 10/13/02 19,800 3,400 283,470 1,200 307870 10/14/02 19,800 3,400 283,470 1,200 307870 10/15/02 17,200 4,600 285,070 1,200 308070 10/16/02 15,900 5,900 285,070 1,200 308070 10/17/02 14,200 6,400 286,070 1,200 307870 10/18/02 12,900 9,700 280,870 1,200 304670 10/19/02 12,900 9,700 280,870 1,200 304670 10/20/02 12,900 9,700 280,870 1,200 304670 10/21/02 10,300 12,000 281,470 1,200 304970 10/22/02 7,800 13,500 282,570 1,100 304970 10/23/02 6,100 17,000 289,270 1,100 313470 10/24/02 5,400 17,000 288,070 1,100 311570 10/25/02 1,700 17,000 291,170 1,100 310970 10/26/02 1,700 17,000 291,170 1,100 310970 10/27/02 1,700 17,000 291,170 1,100 310970 10/28/02 0 24,500 285,870 1,100 311470 10/29/02 0 2,800 258,770 1,100 262670 10/30/02 0 2,300 266,070 1,100 269470 10/31/02 0 2,300 266,170 1,100 269570 11/01/02 0 3,100 292,970 1100 297170 11/02/02 0 3,100 292,970 1100 297170 11/03/02 0 3,100 292,970 1100 297170 11/04/02 0 3,100 294,170 1100 298370 11/05/02 0 3,100 293,370 1100 297570 11/06/02 0 3,000 294,370 1100 298470 11/07/02 0 2,900 294,570 1100 298570 11/08/02 0 2,900 295,370 1100 299370 11/09/02 0 2,900 295,370 1100 299370 11/10/02 0 2,900 295,370 1100 299370 11/11/02 0 2,900 295,370 1100 299370 11/12/02 0 2,900 307,270 1100 311270 11/13/02 0 2,900 296,970 1100 300970 11/14/02 0 2,900 297,670 1100 301670 11/15/02 0 2,900 302,270 1100 306270 11/16/02 0 2,900 302,270 1100 306270 11/17/02 0 2,900 302,270 1100 306270 11/18/02 0 3,500 302,270 1100 306870 11/19/02 0 6,000 301,870 1100 308970 11/20/02 0 6,900 309,070 1100 317070 11/21/02 0 10,900 306,170 1100 318170 11/22/02 0 14,900 312,970 1100 328970 11/23/02 0 14,900 312,970 1100 328970 11/24/02 0 14,900 312,970 1100 328970 11/25/02 0 19,200 311,070 1100 331370 11/26/02 0 22,300 308,470 1100 331870 11/27/02 0 0 296,870 1100 297970 11/28/02 0 0 296,870 1100 297970 11/29/02 0 0 297,370 1100 298470 11/30/02 0 0 297,370 1100 298470 12/01/02 0 0 297370 1100 298470 12/02/02 0 0 315170 1100 316270 12/03/02 0 0 312770 1100 313870 12/04/02 0 0 315870 1100 316970 12/05/02 0 0 314270 1100 315370 12/06/02 0 0 314770 1100 315870 12/07/02 0 0 314770 1100 315870 12/08/02 0 0 314770 1100 315870 12/09/02 0 0 315170 1100 316270 12/10/02 0 0 315170 1100 316270 12/11/02 0 0 338570 1100 339670 12/12/02 0 0 328070 1100 329170 12/13/02 0 0 325470 1100 326570 12/14/02 0 0 325470 1100 326570 12/15/02 0 0 325470 1100 326570 12/16/02 0 0 319370 1100 320470 12/17/02 0 0 321570 1100 322670 12/18/02 0 1000 325670 1100 327770 12/19/02 0 2100 325670 1100 328870 12/20/02 0 6000 334770 1100 341870 12/21/02 0 6000 334770 1100 341870 12/22/02 0 6000 334770 1100 341870 12/23/02 0 9500 337070 1100 347670 12/24/02 0 9500 337070 1100 347670 12/25/02 0 9500 337070 1100 347670 12/26/02 0 16500 328970 1100 346570 12/27/02 0 20100 326670 1100 347870 12/28/02 0 20100 326670 1100 347870 12/29/02 0 20100 326670 1100 347870 12/30/02 0 0 312170 1100 313270 12/31/02 0 0 314370 1100 315470 Attachment B Loans From Non-Utility Money Pool (Thousand of Dollars) AFS ADC AEC AED AEG AER AME CIC ERC IMS AEM Total Loans Beg Bal 30,075 1,350 26,600 215,525 0 8,800 6,470 6,200 13,790 4,660 0 313,470 10/01/02 30,075 1,350 26,600 215,525 0 8,800 6,470 6,200 13,790 4,460 0 313,270 10/02/02 27,375 1,350 26,600 215,525 0 8,800 6,470 6,200 13,990 4,660 0 310,970 10/03/02 27,375 1,350 26,600 215,525 0 8,800 6,470 6,200 13,990 4,660 0 310,970 10/04/02 27,375 1,450 26,600 215,725 0 8,800 6,470 6,200 13,990 4,660 0 311,270 10/05/02 27,375 1,450 26,600 215,725 0 8,800 6,470 6,200 13,990 4,660 0 311,270 10/06/02 27,375 1,450 26,600 215,725 0 8,800 6,470 6,200 13,990 4,660 0 311,270 10/07/02 25,875 1,450 26,600 215,825 0 8,800 6,470 6,200 13,990 4,660 0 309,870 10/08/02 25,875 1,450 26,600 215,825 0 8,800 6,470 6,200 13,990 4,660 0 309,870 10/09/02 12,975 1,450 26,600 215,925 0 8,800 6,470 6,200 13,990 4,660 0 297,070 10/10/02 23,275 1,450 26,600 215,925 0 8,800 6,470 6,200 13,990 4,660 0 307,370 10/11/02 23,375 1,450 26,600 216,325 0 8,800 6,470 6,200 13,990 4,660 0 307,870 10/12/02 23,375 1,450 26,600 216,325 0 8,800 6,470 6,200 13,990 4,660 0 307,870 10/13/02 23,375 1,450 26,600 216,325 0 8,800 6,470 6,200 13,990 4,660 0 307,870 10/14/02 23,375 1,450 26,600 216,325 0 8,800 6,470 6,200 13,990 4,660 0 307,870 10/15/02 22,975 1,450 26,600 216,725 0 8,800 6,670 6,200 13,990 4,660 0 308,070 10/16/02 22,975 1,450 26,600 216,725 0 8,800 6,670 6,200 13,990 4,660 0 308,070 10/17/02 22,975 1,450 26,600 216,725 0 8,800 6,670 6,200 13,790 4,660 0 307,870 10/18/02 19,775 1,450 26,600 216,725 0 8,800 6,670 6,200 13,790 4,660 0 304,670 10/19/02 19,775 1,450 26,600 216,725 0 8,800 6,670 6,200 13,790 4,660 0 304,670 10/20/02 19,775 1,450 26,600 216,725 0 8,800 6,670 6,200 13,790 4,660 0 304,670 10/21/02 20,075 1,450 26,600 216,725 0 8,800 6,670 6,200 13,790 4,660 0 304,970 10/22/02 20,075 1,450 26,600 216,725 0 8,800 6,670 6,200 13,790 4,660 0 304,970 10/23/02 28,575 1,450 26,600 216,725 0 8,800 6,670 6,200 13,790 4,660 0 313,470 10/24/02 26,675 1,450 26,600 216,725 0 8,800 6,670 6,200 13,790 4,660 0 311,570 10/25/02 24,675 1,450 26,600 217,625 0 8,800 6,670 6,200 13,790 5,160 0 310,970 10/26/02 24,675 1,450 26,600 217,625 0 8,800 6,670 6,200 13,790 5,160 0 310,970 10/27/02 24,675 1,450 26,600 217,625 0 8,800 6,670 6,200 13,790 5,160 0 310,970 10/28/02 23,175 1,450 26,600 218,525 0 8,800 6,670 6,500 13,790 5,960 0 311,470 10/29/02 23,875 1,450 26,600 155,025 19,300 8,800 2,170 6,500 14,590 4,360 0 262,670 10/30/02 24,375 1,450 27,300 156,725 19,300 8,900 5,870 6,500 14,690 4,360 0 269,470 10/31/02 24,375 1,450 27,300 156,725 19,300 8,900 5,970 6,500 14,690 4,360 0 269,570 11/01/02 24,375 1,450 27,300 156,725 46,700 8,900 5,970 6,500 14,890 4,360 0 297170 11/02/02 24,375 1,450 27,300 156,725 46,700 8,900 5,970 6,500 14,890 4,360 0 297170 11/03/02 24,375 1,450 27,300 156,725 46,700 8,900 5,970 6,500 14,890 4,360 0 297170 11/04/02 24,375 1,450 27,300 156,725 47,800 8,900 5,970 6,500 14,890 4,460 0 298370 11/05/02 22,675 1,450 27,300 156,725 48,700 8,900 5,970 6,500 14,890 4,460 0 297570 11/06/02 22,675 1,450 27,300 156,725 49,500 8,900 5,970 6,500 14,890 4,560 0 298470 11/07/02 22,675 1,450 27,300 156,725 49,600 8,900 5,970 6,500 14,890 4,560 0 298570 11/08/02 22,675 1,450 27,300 156,725 50,400 8,900 5,970 6,500 14,890 4,560 0 299370 11/09/02 22,675 1,450 27,300 156,725 50,400 8,900 5,970 6,500 14,890 4,560 0 299370 11/10/02 22,675 1,450 27,300 156,725 50,400 8,900 5,970 6,500 14,890 4,560 0 299370 11/11/02 22,675 1,450 27,300 156,725 50,400 8,900 5,970 6,500 14,890 4,560 0 299370 11/12/02 30,875 1,450 27,300 156,725 54,100 8,900 5,970 6,500 14,890 4,560 0 311270 11/13/02 17,475 1,450 27,300 156,825 57,000 8,900 6,070 6,500 14,890 4,560 0 300970 11/14/02 17,575 1,450 27,300 156,825 58,500 8,900 6,070 6,500 14,890 3,660 0 301670 11/15/02 17,675 1,450 27,300 157,225 60,900 8,900 6,270 6,500 14,890 5,160 0 306270 11/16/02 17,675 1,450 27,300 157,225 60,900 8,900 6,270 6,500 14,890 5,160 0 306270 11/17/02 17,675 1,450 27,300 157,225 60,900 8,900 6,270 6,500 14,890 5,160 0 306270 11/18/02 17,675 1,450 27,300 157,225 61,500 8,900 6,270 6,500 14,890 5,160 0 306870 11/19/02 17,675 1,450 27,300 157,225 64,300 8,900 6,270 6,500 14,890 4,460 0 308970 11/20/02 18,175 1,550 27,600 158,825 66,400 9,000 9,570 6,500 14,890 4,560 0 317070 11/21/02 17,575 1,550 27,600 158,925 68,000 9,000 9,570 6,500 14,890 4,560 0 318170 11/22/02 25,775 1,550 27,600 158,925 70,600 9,000 9,570 6,500 14,890 4,560 0 328970 11/23/02 25,775 1,550 27,600 158,925 70,600 9,000 9,570 6,500 14,890 4,560 0 328970 11/24/02 25,775 1,550 27,600 158,925 70,600 9,000 9,570 6,500 14,890 4,560 0 328970 11/25/02 26,475 1,550 27,600 158,925 72,300 9,000 9,570 6,500 14,890 4,560 0 331370 11/26/02 26,075 1,550 27,600 158,925 73,200 9,000 9,570 6,500 14,890 4,560 0 331870 11/27/02 25,675 1,550 27,600 65,525 134,900 9,000 5,570 6,500 15,090 4,560 2,000 297970 11/28/02 25,675 1,550 27,600 65,525 134,900 9,000 5,570 6,500 15,090 4,560 2,000 297970 11/29/02 25,675 1,550 27,600 65,525 136,500 9,000 5,570 6,500 15,090 4,560 900 298470 11/30/02 25,675 1,550 27,600 65,525 136,500 9,000 5,570 6,500 15,090 4,560 900 298470 12/01/02 25,675 1,550 27,600 65,525 136,500 9,000 5,570 6,500 15,090 4,560 900 298470 12/02/02 25,675 1,550 27,600 67,825 151,900 9,000 5,570 6,600 15,090 4,560 900 316270 12/03/02 22,875 1,550 27,600 67,825 152,200 9,300 5,570 6,600 15,090 4,360 900 313870 12/04/02 22,475 1,550 27,600 67,825 155,400 9,300 5,570 6,600 15,090 4,560 1,000 316970 12/05/02 20,175 1,550 27,600 67,825 155,800 9,400 5,570 6,600 15,290 4,560 1,000 315370 12/06/02 20,175 1,550 27,600 67,825 156,300 9,400 5,570 6,600 15,290 4,560 1,000 315870 12/07/02 20,175 1,550 27,600 67,825 156,300 9,400 5,570 6,600 15,290 4,560 1,000 315870 12/08/02 20,175 1,550 27,600 67,825 156,300 9,400 5,570 6,600 15,290 4,560 1,000 315870 12/09/02 20,175 1,550 27,600 67,825 156,700 9,400 5,570 6,600 15,290 4,560 1,000 316270 12/10/02 19,975 1,550 27,600 67,825 157,500 9,400 5,570 6,600 15,290 4,560 400 316270 12/11/02 29,075 1,550 27,700 68,025 165,000 9,400 5,570 6,600 15,290 11,060 400 339670 12/12/02 15,375 1,550 27,700 68,025 168,200 9,400 5,570 6,600 15,290 11,060 400 329170 12/13/02 16,875 1,550 27,700 68,025 170,400 9,400 5,870 6,600 15,290 4,460 400 326570 12/14/02 16,875 1,550 27,700 68,025 170,400 9,400 5,870 6,600 15,290 4,460 400 326570 12/15/02 16,875 1,550 27,700 68,025 170,400 9,400 5,870 6,600 15,290 4,460 400 326570 12/16/02 16,575 1,550 27,700 68,025 165,000 9,000 5,870 6,600 15,290 4,460 400 320470 12/17/02 16,575 1,550 27,700 68,025 167,100 9,000 5,970 6,600 15,290 4,460 400 322670 12/18/02 16,575 1,550 27,900 69,725 167,500 9,200 8,970 6,600 15,290 4,460 0 327770 12/19/02 16,575 1,550 27,900 69,725 168,600 9,200 8,970 6,600 15,290 4,460 0 328870 12/20/02 25,175 1,550 27,900 69,725 174,000 9,200 8,970 6,600 15,290 4,460 0 342870 12/21/02 25,175 1,550 27,900 69,725 174,000 9,200 8,970 6,600 15,290 4,460 0 342870 12/22/02 25,175 1,550 27,900 69,725 174,000 9,200 8,970 6,600 15,290 4,460 0 342870 12/23/02 25,175 1,550 27,900 70,125 179,000 9,200 8,970 6,600 14,290 4,860 0 347670 12/24/02 25,175 1,550 27,900 70,125 179,000 9,200 8,970 6,600 14,290 4,860 0 347670 12/25/02 25,175 1,550 27,900 70,125 179,000 9,200 8,970 6,600 14,290 4,860 0 347670 12/26/02 25,975 1,550 27,900 70,125 178,000 9,200 8,970 5,700 14,290 4,860 0 346570 12/27/02 23,975 1,550 27,900 70,125 183,000 9,200 8,970 5,700 14,390 3,060 0 347870 12/28/02 23,975 1,550 27,900 70,125 183,000 9,200 8,970 5,700 14,390 3,060 0 347870 12/29/02 23,975 1,550 27,900 70,125 183,000 9,200 8,970 5,700 14,390 3,060 0 347870 12/30/02 23,975 1,550 27,900 26,925 187,400 12,900 5,970 5,700 14,390 4,360 2,200 313270 12/31/02 23,975 1,550 27,900 26,925 191,000 12,900 5,970 5,700 14,390 3,160 2,000 315470 Attachment C Calculates net interest on contributors and borrowers 10/01/02 8.8399% 10/02/02 8.8399% 10/03/02 8.8399% 10/04/02 8.8399% 10/05/02 8.8399% 10/06/02 8.8399% 10/07/02 8.8399% 10/08/02 8.8399% 10/09/02 8.8399% 10/10/02 8.8399% 10/11/02 8.8399% 10/12/02 8.8399% 10/13/02 8.8399% 10/14/02 8.8399% 10/15/02 8.8399% 10/16/02 8.8399% 10/17/02 8.8399% 10/18/02 8.8399% 10/19/02 8.8399% 10/20/02 8.8399% 10/21/02 8.8399% 10/22/02 8.8399% 10/23/02 8.8399% 10/24/02 8.8399% 10/25/02 8.8399% 10/26/02 8.8399% 10/27/02 8.8399% 10/28/02 8.8399% 10/29/02 8.8399% 10/30/02 8.8399% 10/31/02 8.8399% 11/01/02 8.8399% 11/02/02 8.8399% 11/03/02 8.8399% 11/04/02 8.8399% 11/05/02 8.8399% 11/06/02 8.8399% 11/07/02 8.8399% 11/08/02 8.8399% 11/09/02 8.8399% 11/10/02 8.8399% 11/11/02 8.8399% 11/12/02 8.8399% 11/13/02 8.8399% 11/14/02 8.8399% 11/15/02 8.8399% 11/16/02 8.8399% 11/17/02 8.8399% 11/18/02 8.8399% 11/19/02 8.8399% 11/20/02 8.8399% 11/21/02 8.8399% 11/22/02 8.8399% 11/23/02 8.8399% 11/24/02 8.8399% 11/25/02 8.8399% 11/26/02 8.8399% 11/27/02 8.8399% 11/28/02 8.8399% 11/29/02 8.8399% 11/30/02 8.8399% 12/01/02 8.8399% 12/02/02 8.8399% 12/03/02 8.8399% 12/04/02 8.8399% 12/05/02 8.8399% 12/06/02 8.8399% 12/07/02 8.8399% 12/08/02 8.8399% 12/09/02 8.8399% 12/10/02 8.8399% 12/11/02 8.8399% 12/12/02 8.8399% 12/13/02 8.8399% 12/14/02 8.8399% 12/15/02 8.8399% 12/16/02 8.8399% 12/17/02 8.8399% 12/18/02 8.8399% 12/19/02 8.8399% 12/20/02 8.8399% 12/21/02 8.8399% 12/22/02 8.8399% 12/23/02 8.8399% 12/24/02 8.8399% 12/25/02 8.8399% 12/26/02 8.8399% 12/27/02 8.8399% 12/28/02 8.8399% 12/29/02 8.8399% 12/30/02 8.8399% 12/31/02 8.8399%