UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 13F Form 13F COVER PAGE Report for the Calendar Year or Quarter Ended: September 30, 2006 Check here if Amendment [ ]; Amendment Number: This Amendment (Check only one.): [ ] is a restatement. [ ] adds new holdings entries. Institutional Investment Manager Filing this Report: Name: The Bank of Nova Scotia Address: 40 King St. West Scotia Plaza 9th Floor Toronto, Ontario, M5H 1H1 13F File Number: 28-11475 The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables, are considered integral parts of this form. Person Signing this Report on Behalf of Reporting Manager: Name: Maria Theofilaktidis Title: Vice President, Financial Accounting and Controls Phone: 416-866-4269 Signature, Place, and Date of Signing: /s/ Maria Theofilaktidis Toronto, Ontario, Canada November 01, 2006 Report Type (Check only one.): [ ] 13F HOLDINGS REPORT. [ ] 13F NOTICE. [ X] 13F COMBINATION REPORT. List of Other Managers Reporting for this Manager: Form 13F File Number Name 28-11461 Scotia Capital Inc. 28-11460 Scotia Cassels Investment Counsel Ltd. 28-11459 Bank of Nova Scotia Trust Co. FORM 13F SUMMARY PAGE Report Summary: Number of Other Included Managers: 1 Form13F Information Table Entry Total: 154 Form13F Information Table Value Total: $16,946,123 (thousands) List of Other Included Managers: Provide a numbered list of the name(s) and Form 13F file number(s) of all institutional managers with respect to which this report is filed, other than the manager filing this report. No. 13F File Number Name 1 28-11472 BNS Investments Inc. FORM 13F INFORMATION TABLE VALUE SHARES/ SH/ PUT/ INVSTMT OTHER VOTING AUTHORITY NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DSCRETN MANAGERS SOLE SHARED NONE ------------------------------ ---------------- --------- -------- -------- --- ---- ------- ------------ -------- -------- -------- 3M CO COM 88579Y101 1105 14845 SH DEFINED 14845 0 0 ABITIBI-CONSOLIDATED INC COM 003924107 16699 6735632 SH SOLE 6735632 0 0 AGNICO EAGLE MINES LTD COM 008474108 5763 186100 SH SOLE 186100 0 0 AGRIUM INC COM 008916108 6413 237355 SH SOLE 237355 0 0 ALCAN INC COM 013716105 97392 2443423 SH SOLE 2443423 0 0 ALCOA INC COM 013817101 409 14595 SH DEFINED 14595 0 0 ALTRIA GROUP INC COM 02209S103 1060 13845 SH DEFINED 13845 0 0 AMERICAN EXPRESS CO COM 025816109 818 14595 SH DEFINED 14595 0 0 AMERICAN INTL GROUP INC COM 026874107 920 13895 SH DEFINED 13895 0 0 ANHEUSER BUSCH COS INC COM 035229103 3563 75000 SH SOLE 75000 0 0 APPLIED MATLS INC COM 038222105 1628 100000 SH SOLE 100000 0 0 AT&T INC COM 00206R102 475 14595 SH DEFINED 14595 0 0 AT&T INC COM 00206R102 3902 119855 SH SOLE 119855 0 0 ATI TECHNOLOGIES INC COM 001941103 11163 521033 SH SOLE 521033 0 0 AVAYA INC COM 053499109 1144 100000 SH SOLE 100000 0 0 BANK MONTREAL QUE COM 063671101 1337823 22119595 SH SOLE 22119595 0 0 BANK OF AMERICA CORPORATION COM 060505104 10714 200000 SH SOLE 200000 0 0 BARRICK GOLD CORP COM 067901108 132143 4302264 SH SOLE 4302264 0 0 BCE INC COM NEW 05534B760 994422 36657814 SH SOLE 36657814 0 0 BCE INC COM NEW 05534B760 17375 640500 SH SOLE 1 640500 0 0 BIOVAIL CORP COM 09067J109 3236 212769 SH SOLE 212769 0 0 BOEING CO COM 097023105 1151 14595 SH DEFINED 14595 0 0 BRISTOL MYERS SQUIBB CO COM 110122108 2492 100000 SH SOLE 100000 0 0 BROOKFIELD ASSET MGMT INC CL A LTD VT SH 112585104 724159 16377836 SH SOLE 16377836 0 0 BROOKFIELD PPTYS CORP COM 112900105 87714 2492690 SH SOLE 2492690 0 0 CAE INC COM 124765108 18655 2187857 SH SOLE 2187857 0 0 CAMECO CORP COM 13321L108 37819 1037816 SH SOLE 1037816 0 0 CANADIAN NAT RES LTD COM 136385101 162111 3556961 SH SOLE 3556961 0 0 CANADIAN NATL RY CO COM 136375102 329684 7882098 SH SOLE 7882098 0 0 CANADIAN PAC RY LTD COM 13645T100 41315 831137 SH SOLE 831137 0 0 CATERPILLAR INC DEL COM 149123101 960 14590 SH DEFINED 14590 0 0 CDN IMPERIAL BK OF COMMERCE COM 136069101 1113264 14769081 SH SOLE 14769081 0 0 CELESTICA INC SUB VTG SHS 15101Q108 3282 306175 SH SOLE 306175 0 0 CHC HELICOPTER CORP CL A SUB VTG 12541C203 23029 1170000 SH SOLE 1170000 0 0 CHESAPEAKE ENERGY CORP COM 165167107 7245 250000 SH SOLE 250000 0 0 CHEVRON CORP NEW COM 166764100 4865 75000 SH SOLE 75000 0 0 CITIGROUP INC COM 172967101 14901 300000 SH SOLE 300000 0 0 CITIGROUP INC COM 172967101 737 14830 SH DEFINED 14830 0 0 CNX GAS CORP COM 12618H309 2317 100000 SH SOLE 100000 0 0 COCA COLA CO COM 191216100 652 14595 SH DEFINED 14595 0 0 COCA COLA CO COM 191216100 12510 280000 SH SOLE 280000 0 0 COGNOS INC COM 19244C109 5061 139322 SH SOLE 139322 0 0 COMCAST CORP NEW CL A 20030N101 4942 133927 SH SOLE 133927 0 0 CONCUR TECHNOLOGIES INC COM 206708109 214 14709 SH SOLE 14709 0 0 CORUS ENTERTAINMENT INC COM CL B NON VTG 220874101 10427 273433 SH SOLE 273433 0 0 COTT CORP QUE COM 22163N106 1903 111339 SH SOLE 111339 0 0 CVS CORP COM 126650100 6424 200000 SH SOLE 200000 0 0 DISNEY WALT CO COM DISNEY 254687106 451 14595 SH DEFINED 14595 0 0 DOLLAR TREE STORES INC COM 256747106 6192 200000 SH SOLE 200000 0 0 DOMTAR INC COM 257561100 3322 565532 SH SOLE 565532 0 0 DORAL FINL CORP COM 25811P100 1648 250000 SH SOLE 250000 0 0 DU PONT E I DE NEMOURS & CO COM 263534109 629 14695 SH DEFINED 14695 0 0 ELECTRONIC ARTS INC COM 285512109 10804 193480 SH SOLE 193480 0 0 ENBRIDGE INC COM 29250N105 494560 15324915 SH SOLE 15324915 0 0 ENCANA CORP COM 292505104 286803 6163415 SH SOLE 6163415 0 0 ENTERRA ENERGY TR TR UNIT 29381P102 2146 225000 SH SOLE 225000 0 0 EXXON MOBIL CORP COM 30231G102 976 14545 SH DEFINED 14545 0 0 EXXON MOBIL CORP COM 30231G102 11743 175000 SH SOLE 175000 0 0 FAIRFAX FINL HLDGS LTD SUB VTG 303901102 24165 186234 SH SOLE 186234 0 0 GENERAL ELECTRIC CO COM 369604103 515 14595 SH DEFINED 14595 0 0 GENERAL MTRS CORP COM 370442105 489 14695 SH DEFINED 14695 0 0 GLAMIS GOLD LTD COM 376775102 10155 258300 SH SOLE 258300 0 0 GOLDCORP INC NEW COM 380956409 15301 648788 SH SOLE 648788 0 0 HEWLETT PACKARD CO COM 428236103 546 14895 SH DEFINED 14895 0 0 HOME DEPOT INC COM 437076102 529 14595 SH DEFINED 14595 0 0 HONEYWELL INTL INC COM 438516106 597 14595 SH DEFINED 14595 0 0 IMPERIAL OIL LTD COM NEW 453038408 288869 8616723 SH SOLE 8616723 0 0 INCO LTD COM 453258402 24106 316200 SH SOLE 316200 0 0 INTEL CORP COM 458140100 6171 300000 SH SOLE 300000 0 0 INTEL CORP COM 458140100 300 14595 SH DEFINED 14595 0 0 INTERNATIONAL BUSINESS MACHS COM 459200101 1216 14845 SH DEFINED 14845 0 0 INTERNATIONAL BUSINESS MACHS COM 459200101 8194 100000 SH SOLE 100000 0 0 INTERNATIONAL RECTIFIER CORP COM 460254105 3484 100000 SH SOLE 100000 0 0 INTEROIL CORP COM 460951106 4738 254470 SH SOLE 254470 0 0 INTRAWEST CORPORATION COM NEW 460915200 8307 240844 SH SOLE 240844 0 0 IPSCO INC COM 462622101 13289 153300 SH SOLE 153300 0 0 ISHARES INC MSCI TAIWAN 464286731 2914 225000 SH SOLE 225000 0 0 ISHARES INC MSCI JAPAN 464286848 678 50000 SH SOLE 50000 0 0 ISHARES TR DJ US REAL EST 464287739 2201 28530 SH SOLE 28530 0 0 ISHARES TR MSCI EAFE IDX 464287465 324 4780 SH SOLE 4780 0 0 ISHARES TR MSCI EMERG MKT 464287234 699 7220 SH SOLE 7220 0 0 ISHARES TR S&P 100 IDX FD 464287101 200 6600 SH SOLE 6600 0 0 IVANHOE MINES LTD COM 46579N103 1294 206313 SH SOLE 206313 0 0 JOHNSON & JOHNSON COM 478160104 944 14545 SH DEFINED 14545 0 0 JP MORGAN CHASE & CO COM 46625H100 685 14595 SH DEFINED 14595 0 0 KINROSS GOLD CORP COM NO PAR 496902404 7035 562079 SH SOLE 562079 0 0 MAGNA INTL INC CL A 559222401 259435 3573267 SH SOLE 3573267 0 0 MANULIFE FINL CORP COM 56501R106 1624859 50447351 SH SOLE 50447351 0 0 MASTERCARD INC COM 57636Q104 72 108713 SH SOLE 108713 0 0 MCDONALDS CORP COM 580135101 571 14595 SH DEFINED 14595 0 0 MDS INC COM 55269P302 7324 427474 SH SOLE 427474 0 0 MEMC ELECTR MATLS INC COM 552715104 3663 100000 SH SOLE 100000 0 0 MERCK & CO INC COM 589331107 624 14895 SH DEFINED 14895 0 0 MERCK & CO INC COM 589331107 4584 109400 SH SOLE 109400 0 0 METHANEX CORP COM 59151K108 33932 1399998 SH SOLE 1399998 0 0 MI DEVS INC CL A SUB VTG 55304X104 35164 968062 SH SOLE 968062 0 0 MICROSOFT CORP COM 594918104 8205 300000 SH SOLE 300000 0 0 MICROSOFT CORP COM 594918104 406 14845 SH DEFINED 14845 0 0 MOLSON COORS BREWING CO CL B 60871R209 5268 76667 SH SOLE 76667 0 0 NEUROCHEM INC COM 64125K101 2561 139516 SH SOLE 139516 0 0 NEXEN INC COM 65334H102 79140 1480424 SH SOLE 1480424 0 0 NISOURCE INC COM 65473P105 6522 300000 SH SOLE 300000 0 0 NORTEL NETWORKS CORP NEW COM 656568102 15350 6728146 SH SOLE 6728146 0 0 NORTH AMERN PALLADIUM LTD COM 656912102 1683 232179 SH SOLE 232179 0 0 NORTHGATE MINERALS CORP COM 666416102 12190 3795200 SH SOLE 3795200 0 0 NOVA CHEMICALS CORP COM 66977W109 54844 1789743 SH SOLE 1789743 0 0 NOVELIS INC COM 67000X106 13316 520738 SH SOLE 520738 0 0 OPPENHEIMER HLDGS INC CL A NON VTG 683797104 236 8336 SH SOLE 8336 0 0 ORBITAL SCIENCES CORP COM 685564106 272 14500 SH DEFINED 1 0 0 14500 PATTERSON UTI ENERGY INC COM 703481101 4752 200000 SH SOLE 200000 0 0 PETRO-CDA COM 71644E102 122605 3044555 SH SOLE 3044555 0 0 PFIZER INC COM 717081103 394 13895 SH DEFINED 13895 0 0 PFIZER INC COM 717081103 24815 875000 SH SOLE 875000 0 0 PHARMACEUTICAL HLDRS TR DEPOSITRY RCPT 71712A206 7803 100000 SH SOLE 100000 0 0 PITNEY BOWES INC COM 724479100 8901 200600 SH SOLE 200600 0 0 POTASH CORP SASK INC COM 73755L107 38383 369773 SH SOLE 369773 0 0 PRIMEWEST ENERGY TR TR UNIT NEW 741930309 12985 530655 SH SOLE 530655 0 0 PROCTER & GAMBLE CO COM 742718109 923 14895 SH DEFINED 14895 0 0 PROGRESS ENERGY INC COM 743263105 9484 209000 SH SOLE 209000 0 0 PROVIDENT ENERGY TR TR UNIT 74386K104 5824 500000 SH SOLE 500000 0 0 QUALCOMM INC COM 747525103 3154 78700 SH SOLE 78700 0 0 QUEBECOR WORLD INC COM NON-VTG 748203106 31071 2980943 SH SOLE 2980943 0 0 QWEST COMMUNICATIONS INTL IN COM 749121109 872 100000 SH SOLE 100000 0 0 RESEARCH IN MOTION LTD COM 760975102 25079 244616 SH SOLE 244616 0 0 ROGERS COMMUNICATIONS INC CL B 775109200 14282 260833 SH SOLE 260833 0 0 ROYAL BK CDA MONTREAL QUE COM 780087102 2525705 57018384 SH SOLE 57018384 0 0 ROYAL GROUP TECHNOLOGIES LTD COM 779915107 6963 600973 SH SOLE 600973 0 0 SCHERING PLOUGH CORP COM 806605101 15467 700200 SH SOLE 700200 0 0 SHAW COMMUNICATIONS INC CL B CONV 82028K200 9085 303378 SH SOLE 303378 0 0 SILVER WHEATON CORP COM 828336107 716 76294 SH SOLE 76294 0 0 SLM CORP COM 78442P106 204292 3930200 SH SOLE 3930200 0 0 SMTC CORP COM NEW 832682207 1252 469082 SH SOLE 469082 0 0 SOURCE INTERLINK COS INC COM NEW 836151209 650 60035 SH SOLE 60035 0 0 SPDR TR UNIT SER 1 78462F103 33657 251660 SH SOLE 251660 0 0 SUN LIFE FINL INC COM 866796105 798144 19456598 SH SOLE 19456598 0 0 SUNCOR ENERGY INC COM 867229106 156784 2185274 SH SOLE 2185274 0 0 TAIWAN SEMICONDUCTOR MFG LTD SPONSORED ADR 874039100 960 100000 SH SOLE 100000 0 0 TALISMAN ENERGY INC COM 87425E103 385358 23613765 SH SOLE 23613765 0 0 TECK COMINCO LTD CL B 878742204 265564 4240303 SH SOLE 4240303 0 0 TELUS CORP NON-VTG SHS 87971M202 366551 6544634 SH SOLE 6544634 0 0 THOMSON CORP COM 884903105 400651 9951282 SH SOLE 9951282 0 0 TIM HORTONS INC COM 88706M103 23427 895200 SH SOLE 895200 0 0 TORONTO DOMINION BK ONT COM NEW 891160509 1884607 31713720 SH SOLE 31713720 0 0 TRANSALTA CORP COM 89346D107 131265 6185237 SH SOLE 6185237 0 0 TRANSALTA CORP COM 89346D107 49872 2350000 SH SOLE 1 2350000 0 0 TRANSCANADA CORP COM 89353D107 33807 1075000 SH SOLE 1 1075000 0 0 TRANSCANADA CORP COM 89353D107 628273 19977827 SH SOLE 19977827 0 0 UNITED TECHNOLOGIES CORP COM 913017109 943 14890 SH DEFINED 14890 0 0 VERIZON COMMUNICATIONS COM 92343V104 542 14595 SH DEFINED 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