|UNITED STATES 
SECURITIES AND EXCHANGE COMMISSION 
Washington, D.C. 20549
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|                                                                         
|FORM 10-K                                                                

(Mark One)

|[Ö
] | ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934    
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|     | For the fiscal year ended December 31, 2005                                             
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|    | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|     | For the transition period from _____ to ________                                        

|Commission File Number 2-94863                                                                                                                                                                                                                                                                                                                                     
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|CANANDAIGUA NATIONAL CORPORATION                                                                                                                                                                                                                                                                                                                                   
|(Exact name of Registrant as specified in its charter)                                                                                                                                                                                                                                                                                                             
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|(585) 394-4260                                                                                                                                                                                                                                                                                                                                                     
|(Registrant's telephone number, including area code)                                                                                                                                                                                                                                                                                                               
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|Securities registered pursuant to Section 12(b) of the Act:  NONE                                                                                                                                                                                                                                                                                                  
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|Securities registered pursuant to Section 12(g) of the Act:                                                                                                                                                                                                                                                                                                        
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|2,000,000 shares $20 par common                                                                                                                                                                                                                                                                                                                                    
|(Title of class)                                                                                                                                                                                                                                                                                                                                                   
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|Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act                                                                                                                                                                                                                                             
|Yes     No [Ö
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|Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Exchange Act.                                                                                                                                                                                                                              
|Yes     No [Ö
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|Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15 (d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.          
|Yes [Ö
]    No                                                                                                                                                                                                                                                                                                                                                    
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|Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of Registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.                              
|Yes     No [Ö
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|Indicate by check mark whether the registrant is a large accelerated filer, and accelerated filer, or a non-accelerated filer.                                                                                                                                                                                                                                     
|Large accelerated filer                               Accelerated filer [Ö
]                           Non-accelerated filer                                                                                                                                                                                                                                     
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|Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act.                                                                                                                                                                                                                                                    
|Yes     No [Ö
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|As of June 30, 2005, the aggregate estimated market value of the voting common stock held by non-affiliates, computed by reference to the most recent public stock sale up to that date of $371.88 per common share, was $178,283,000.                                                                                                                             
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|The Company's stock is not actively traded.  In addition, it is not listed with a national securities exchange.  Due to the limited number of transactions, the weighted average sales price disclosed on page 19 of the Annual Report, which is incorporated herein by reference thereto, may not be indicative of the actual market value of the Company's stock.
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|Number of shares outstanding of the Registrant's shares of common stock as of January 31, 2006: 479,934.                                                                                                                                                                                                                                                           
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|Documents Incorporated by Reference                                                                                                                                                                                                                                                                                                                                
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|Portions of the Company's Annual Report for the fiscal year ended December 31, 2005, and Proxy Statement for its 2006 Annual Meeting of Shareholders are incorporated by reference into Parts I, II and III.                                                                                                                                                       
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|1                                                                                                                                                                                                                                                                                                                                                                  



|CANANDAIGUA NATIONAL CORPORATION           
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|INDEX TO FORM 10-K                         
|For the fiscal year ended December 31, 2005
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|PART I   |                                                                                                | Page
|-------- | ---------------------------------------------------------------------------------------------- | ----
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|Item 1   | Business                                                                                       | 3   
|         |                                                                                                |     
|Item 1A  | Risk Factors                                                                                   | 9   
|         |                                                                                                |     
|Item 1B  | Unresolved Staff Comments                                                                      | 10  
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|Item 2   | Properties                                                                                     | 10  
|         |                                                                                                |     
|Item 3   | Legal Proceedings                                                                              | 10  
|         |                                                                                                |     
|Item 4   | Submission of Matters to a Vote of Security Holders                                            | 10  
|         |                                                                                                |     
|PART II  |                                                                                                |     
|         |                                                                                                |     
|Item 5   | Market for Registrant's Common Equity, Related Shareholder Matters and Issuer Purchases of     |     
|         | Equity Securities                                                                              | 10  
|         |                                                                                                |     
|Item 6   | Selected Financial Data                                                                        | 11  
|         |                                                                                                |     
|Item 7   | Management's Discussion and Analysis of Financial Condition and Results of Operations          | 11  
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|Item 7A  | Quantitative and Qualitative Disclosures about Market Risk                                     | 11  
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|Item 8   | Financial Statements and Supplementary Data                                                    | 11  
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|Item 9   | Changes in and Disagreements with Accountants on Accounting and Financial Disclosure           | 11  
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|Item 9A  | Controls and Procedures                                                                        | 11  
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|Item 9B  | Other Information                                                                              | 11  
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|PART III |                                                                                                |     
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|Item 10  | Directors and Executive Officers of the Registrant                                             | 11  
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|Item 11  | Executive Compensation                                                                         | 12  
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|Item 12  | Security Ownership of Certain Beneficial Owners and Management and Related Shareholder Matters | 12  
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|Item 13  | Certain Relationships and Related Transactions                                                 | 12  
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|Item 14  | Principal Accounting Fees and Services                                                         | 12  
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|PART IV  |                                                                                                |     
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|Item 15  | Exhibits, Financial Statement Schedules                                                        | 12  
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|         | Signatures                                                                                     | 14  
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|2       



|PART I                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
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|Item 1. Business                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Canandaigua National Corporation                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Canandaigua National Corporation, referred to as "Company", is a one-bank holding company that builds lasting customer relationships by providing comprehensive financial solutions to individuals and small businesses. The Company is headquartered in Canandaigua, New York, which is approximately 25 miles southeast of Rochester, New York.  The Company was organized on October 31, 1984, and registered under the Bank Holding Company Act of 1956, for the purpose of becoming a one-bank holding company. The bank holding company structure serves as a means of increasing the scope of banking and financial services in the market area served by The Canandaigua National Bank and Trust Company (the "Bank"). The Company's principal operating subsidiaries are The Canandaigua National Bank and Trust Company and CNB Mortgage Company.  However, the Bank has been, and is expected to remain, the principal source of the Company's operating revenue and net income.  (See also "Selected Financial Data" under Part II, Item 6, "Management's Discussion and Analysis of Financial Condition and Results of Operations" under Part II, Item 7 and Note 1 of the Consolidated Financial Statements, which is incorporated herein by reference thereto for additional information relating to the Company's business.)  In June 2002, the Company formed Canandaigua National Statutory Trust I to accommodate the private placement of $20 million in capital securities, which is more fully described in Note 9 of the Consolidated Financial Statements, which is incorporated herein by reference thereto.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
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|CNB Mortgage Company                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
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|The Company acquired 100% of CNB Mortgage Company (formerly known as HomeTown Funding, Inc.) in October 1997.  CNB Mortgage Company, operating as the Company's mortgage department, offers a full line of mortgage products.  It is engaged in underwriting and funding mortgages primarily in western New York State.  It resells residential mortgages to the Bank and unaffiliated entities, which service the loans.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|The Canandaigua National Bank and Trust Company                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
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|The Canandaigua National Bank and Trust Company was incorporated as a national bank in 1887 under the laws of the United States of America.  Since that time, the Bank has operated as a national banking association doing business at its main office at 72 South Main Street, Canandaigua, New York, and several locations in Ontario County and Monroe County, New York. The Bank was granted Trust powers in 1919 and was licensed to sell insurance in 1996.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|The Bank provides a full range of financial services to its retail, commercial and municipal customers through a variety of deposit, lending, trust, investment, and insurance products.  These products are delivered by employees through a "lifestyle" marketing concept, whereby customers' needs are anticipated and evaluated based upon their stage in life (e.g., growing family, retirement, college student, etc.).  New products are developed around this concept.  These services are delivered through the Bank's network of community banking offices, which include drive-up facilities and automatic teller machines, other remote cash-dispensing machines, its customer call center, and the Internet.  A full description and analysis of the Bank's and Company's activities is set forth in Items 7 and 7a.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
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|Geographic Market Served                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
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|The Company's physical market area generally covers western Ontario County and Monroe County in New York State, where the Company operates its banking offices and ATMs.  Customers usually initiate their relationship with the Bank from this area. However, the Bank conducts business through the Internet and by telephone and with payment services such as credit cards and debit cards; thus, the Bank's customers are served world-wide.  Since the mid-1990s, the Bank has expanded into Monroe County by opening community banking offices in Pittsford (1995), Webster/Penfield (1998), Greece (1999), Chili (1999), Honeoye Falls (1999), Perinton (2000), Irondequoit (2000), Bushnell's Basin (2000), the City of Rochester (2000), Brighton (2002), and Penfield (2004).  There are no announced plans for additional offices; however management reviews opportunities as they arise.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
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|The Company's market area is a middle-class economically diversified region that includes urban, suburban and rural markets.  Rochester is one of the largest cities in New York State outside of New York City.  According to the U.S. Census Bureau's 2000 census, the Rochester MSA had a household population of 1.1 million - 545,000 (52 percent) females and 511,000 (48 percent) males. The median age was 36.6 years. Twenty-seven percent of the population was under 18 years and 13 percent was 65 years and older.  The median income of households in the Rochester, NY MSA was $44,695. Seventy-eight percent of the households received earnings, and 21 percent received retirement income other than Social Security.   In 2000, for the employed population 16 years and older, the leading industries were: educational, health, and social services, 24 percent; manufacturing, 21 percent; and retail trade, 14 percent.  In 2000, the Rochester, NY MSA had a total of 451,000 housing units, seven percent of which were vacant.  Of the total housing units, 69 percent were in single-unit structures, 27 percent were in multi-unit structures, and 4 percent were mobile homes.  In 2000, the Rochester, NY MSA had 420,000 occupied housing units - 286,000 (68 percent) owner occupied and 134,000 (32 percent) renter occupied. Ninety-seven percent of the households had telephone service, and 81 percent of the households had access to a car, truck, or van for                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|Private use. Multi-vehicle households were not rare. Forty-two percent had two vehicles and another 16 percent had three or more.  The median monthly housing costs for mortgaged owners was $1,069, non-mortgaged owners $369, and renters $623. Twenty-one percent of owners with mortgages, 9 percent of owners without mortgages, and 47 percent of renters in the Rochester, NY MSA spent 30 percent or more of household income on housing                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|3                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
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|Competition                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
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|The Company considers its business to be highly competitive in its market areas.  The Company competes with respect to its lending services, as well as in attracting deposits, with commercial banks, savings banks, savings and loan associations, insurance companies, regulated small loan companies, non-bank banks, credit unions, and investment managers.  The Company also competes with securities firms, brokerages, insurance companies, investment counseling firms, mutual funds and other business firms and individuals in corporate trust and investment management services.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
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|The Company is generally competitive with financial institutions in its service areas with respect to interest rates paid on time and savings deposits and interest rates charged on loans and charges for services.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
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|One measure of competitive strength is the percentage of deposits held by an institution in a geographic location.  Based upon the most recent data available from the Federal Financial Institutions Examination Council (FFIEC) as of June 30, 2005, the Company's share of deposits for all banks and credit unions (with share totals greater than $50 million) in the Company's physical market area was 6.87% ($883,233 million) in 2005, 6.37% ($837,027 million) in 2004, and 4.64% ($788.3 million) in  2003.  At June 30, 2005, this defined market area had total deposits of approximately $12.9 billion.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Employees                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
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|At December 31, 2005, the Company had 360 employees of whom 90 worked on a part-time basis.  None of the employees are covered by a collective bargaining agreement. The Company considers its relations with its employees to be excellent.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
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|Supervision and Regulation of Banking Activities                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
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|The supervision and regulation of bank holding companies and their subsidiaries is intended primarily for the protection of depositors, the deposit insurance funds regulated by the FDIC and the banking system as a whole, and not for the protection of shareholders or creditors of bank holding companies. Bank regulatory agencies have broad enforcement power over bank holding companies and banks, including the power to impose substantial fines, operational restrictions and other penalties for violations of laws and regulations. The following description summarizes some of the laws to which the Company and its subsidiaries are subject. References to applicable statutes and regulations are brief summaries and do not claim to be complete. Management believes the Company is in compliance in all material respects with these laws and regulations. Changes in the laws, regulations or policies that impact the Company cannot necessarily be predicted, but they may have a material effect on the business and earnings of the Company.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
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|THE COMPANY                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
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|Canandaigua National Corporation is incorporated under the laws of the State of New York. As a bank holding company, the Company is subject to the Bank Holding Company Act of 1956, as amended (the "BHC Act"), and is required to file annual reports and such additional information as may be required by the Federal Reserve Board (the "FRB") pursuant to the BHC Act. The FRB has the authority to examine the Company and its subsidiaries.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
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|The BHC Act and other federal laws subject bank holding companies to restrictions on the types of activities in which they may engage, and to a range of supervisory requirements and activities, including regulatory enforcement actions for violations of laws and regulations:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Regulatory Restrictions on Dividends -- It is the policy of the Federal Reserve Board that bank holding companies should pay cash dividends on common stock only out of income available over the past year, and only if prospective earnings retention is consistent with the holding company's expected future needs and financial condition. The policy provides that bank holding companies should not maintain a level of cash dividends that undermines the bank holding company's ability to serve as a source of strength to its banking subsidiary. Under Federal Reserve Board policy, a bank holding company is expected to act as a source of financial strength to its banking subsidiary and commit resources to their support.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
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|Safe and Sound Banking Practices -- Bank holding companies are not permitted to engage in unsafe and unsound banking practices. The Federal Reserve Board's Regulations for example, generally require a holding company to give the Federal Reserve Board prior notice of any redemption or repurchase of its own equity securities, if the consideration to be paid, together with the consideration paid for any repurchases or redemptions in the preceding year, is equal to 10% or more of the company's consolidated net worth. The Federal Reserve Board has broad authority to prohibit activities of bank holding companies and their non-banking subsidiaries which represent unsafe and unsound banking practices or which constitute violations of laws or regulations, and can assess civil money penalties for certain activities conducted on a knowing and reckless basis, if those activities caused a substantial loss to a depository institution.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
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|4                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
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|Anti-Tying Restrictions -- Bank holding companies and their affiliates are prohibited from tying the provision of certain services, such as extensions of credit, to other services offered by a holding company or its affiliates.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Capital Adequacy Requirements -- The Federal Reserve Board has adopted a system using risk-based capital guidelines to evaluate the capital adequacy of bank holding companies. Under the guidelines, specific categories of assets are assigned different risk weights, based generally on the perceived credit risk of the asset. These risk weights are multiplied by corresponding asset balances to determine a "risk-weighted" asset base. In addition to the risk-based capital guidelines, the Federal Reserve Board uses a leverage ratio as an additional tool to evaluate the capital adequacy of bank holding companies. Federal Reserve Board guidelines also provide that banking organizations experiencing internal growth or making acquisitions will be expected to maintain strong capital positions substantially above the minimum supervisory levels, without significant reliance on intangible assets. The leverage ratio is a company's Tier 1 capital divided by its three-month average consolidated assets. See Note 17 of the 2005 Annual Report, which is incorporated herein by reference for the Company's and Bank's capital ratios                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
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|Imposition of Liability for Undercapitalized Subsidiaries -- Bank regulators are required to take "prompt corrective action" to resolve problems associated with insured depository institutions whose capital declines below certain levels. In the event an institution becomes "undercapitalized," it must submit a capital restoration plan. The capital restoration plan will not be accepted by the regulators unless each company having control of the undercapitalized institution guarantees the subsidiary's compliance with the capital restoration plan up to a certain specified amount. Any such guarantee from a depository institution's holding company is entitled to a priority of payment in bankruptcy.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
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|Acquisitions by Bank Holding Companies-- The Bank Holding Company Act requires every bank holding company to obtain the prior approval of the Federal Reserve Board before it may acquire all or substantially all of the assets of any bank, or ownership or control of any voting shares of any bank, if after such acquisition it would own or control, directly or indirectly, more than 5% of the voting shares of such bank. In approving bank acquisitions by bank holding companies, the Federal Reserve Board is required to consider the financial and managerial resources and future prospects of the bank holding company and the banks concerned, the convenience and needs of the communities to be served, and various competitive factors.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
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|Control Acquisitions --The Change in Bank Control Act prohibits a person or group of persons from acquiring "control" of a bank holding company unless the Federal Reserve Board has been notified and has not objected to the transaction. Under a rebuttable presumption established by the Federal Reserve Board, the acquisition of 10% or more of a class of voting stock of a bank holding company with a class of securities registered under Section 12 of the Exchange Act, would, under the circumstances set forth in the presumption, constitute acquisition of control of the Company. In addition, any entity is required to obtain the approval of the Federal Reserve Board under the Bank Holding Company Act before acquiring 25% (5% in the case of an acquirer that is a bank holding company) or more of the Company's outstanding common stock, or otherwise obtaining control or a "controlling influence" over the Company.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
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|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|THE BANK                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
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|The Canandaigua National Bank and Trust Company is a national bank chartered by the Office of the Comptroller of Currency. Its deposits are insured by the FDIC through the Bank Insurance Fund. The Bank is also a member of the Federal Reserve System. The Bank is subject to supervision and regulation that subject it to special restrictions, requirements, potential enforcement actions and periodic examination by the FDIC, the Federal Reserve Board and the Office of the Comptroller of Currency. Because the Federal Reserve Board regulates the Company, the Bank's parent, the Federal Reserve Board also has supervisory authority which impacts the Bank.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
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|Restrictions on Transactions with Affiliates and Insiders -- Transactions between the holding company and its subsidiaries, including the Bank, are subject to Section 23A of the Federal Reserve Act. In general, Section 23A imposes limits on the amount of such transactions, and also requires certain levels of collateral for loans to affiliated parties. It also limits the amount of advances to third parties which are collateralized by the securities or obligations of the Company or its subsidiaries. Affiliate transactions are also subject to Section 23B of the Federal Reserve Act which generally requires that certain transactions between the holding company and its affiliates be on terms substantially the same, or at least as favorable to the bank, as those prevailing at the time for comparable transactions with or involving other nonaffiliated persons.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
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|Insider loans --Restrictions on loans to directors, executive officers, principal shareholders and their related interests ("insiders") contained in the Federal Reserve Act and Regulation O apply to the Bank, its subsidiaries and the Company. These restrictions include limits on loans to one borrower and conditions that must be met before such a loan can be made. There is also an aggregate limitation on all loans to insiders and their related interests. These loans cannot exceed the institution's total unimpaired capital and surplus, and the FDIC may determine that a lesser amount is appropriate. Insiders are subject to enforcement actions for knowingly accepting loans in violation of applicable restrictions.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
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|Restrictions on Distribution of Subsidiary Bank Dividends and Assets-- Dividends paid by the Bank have been the Company's primary source of operating funds and are expected to be for the foreseeable future. Capital adequacy requirements serve to limit the amount of dividends that may be paid by the Bank. Under federal law, the Bank cannot pay a dividend if, after paying the dividend, it will be "undercapitalized." The FDIC may declare a dividend payment to be unsafe and unsound even though the Bank would continue to meet its capital requirements after the dividend. Because the Company is a legal entity separate and distinct from the Bank, the Company's right to participate in the distribution of assets of the Bank in the event of the Bank's liquidation or reorganization would be subject to the prior claims of the Bank's creditors. In the event of a liquidation or other resolution of an insured depository institution, the claims of depositors and other general or subordinated creditors are entitled to a priority of payment over the claims of holders of any obligation of the institution to its shareholders, including any depository bank holding company (such as the Company) or any shareholder or creditor thereof.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
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|Examinations and Audits-- The Federal Reserve Board and the OCC periodically examine and evaluate the Bank. Based upon such examinations, the appropriate regulator may revalue the assets of the institution and require that it establish specific reserves to compensate for the difference between what the regulator determines the value to be and the book value of such assets.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
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|The FDIC Improvement Act of 1991 (FDICIA)- The Bank must submit annual audit reports to federal regulators prepared by independent auditors. As allowed by regulations, the audit report of the Company is used to satisfy this requirement. Auditors must receive examination reports, supervisory agreements and reports of enforcement actions. In addition, financial statements prepared in accordance with generally accepted accounting principles, management's certifications concerning responsibility for the financial statements, internal controls and compliance with legal requirements designated by the FDIC, and an attestation by the auditor regarding the statements of management relating to the internal controls must be submitted. FDICIA also requires that independent audit committees be formed, consisting of outside directors only. The committees of institutions with assets of more than $3 billion must include members with experience in banking or financial management, must have access to outside counsel and must not include representatives of large customers.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
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|Capital Adequacy Requirements - Refer to Capital Adequacy Requirements under The Company, above.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
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|Community Reinvestment Act -- The Community Reinvestment Act of 1977 ("CRA") and attendant regulations are intended to encourage banks to help meet the credit needs of their service area, including low-and moderate-income neighborhoods, consistent with the safe and sound operations of the banks. These regulations also provide for regulatory assessment of a bank's record in meeting the needs of its service area when considering applications regarding establishing branches, mergers or other bank or branch acquisitions. Federal banking agencies make public a bank's performance rating under the CRA. In the case of a bank holding company, the CRA performance record of the bank(s) involved in the transaction are reviewed in connection with the filing of an application to acquire ownership or control of shares or assets of a bank or to merge with any other bank holding company. An unsatisfactory record can substantially delay or block the transaction.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
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|CNB MORTGAGE COMPANY                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
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|CNB Mortgage Company is a New York State licensed mortgage banker. It is subject to both New York State banking laws and regulations as well as the following significant federal laws and regulations: the Truth in Lending Act, the Equal Credit Opportunity Act, the Fair Housing Act, the Home Mortgage Disclosure Act and the Real Estate Settlement Procedures Act.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Other Laws and Regulations                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
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|The Currency and Foreign Transactions Reporting Act, also known as the Bank Secrecy Act (BSA), and its implementing regulation, 31 CFR 103, is a tool the U.S. government uses to fight drug trafficking, money laundering, and other crimes. Congress enacted the BSA to prevent banks and other financial service providers from being used as intermediaries for, or to hide the transfer or deposit of money derived from, criminal activity. The Office of the Comptroller of the Currency (OCC) monitors national bank compliance with the BSA and 31 CFR 103.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
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|Since its passage, Congress has amended the BSA a number of times to enhance law enforcement effectiveness. The Anti-Drug Abuse Act of 1986, which included the Money Laundering Control Act of 1986 (MLCA), strengthened the government's ability to fight money laundering by making it a criminal activity. The Money Laundering Suppression Act of 1994 (Title IV of the Riegle-Neal Community Development and Regulatory Improvement Act of 1994) required regulators to develop enhanced examination procedures and increase examiner training to improve the identification of money laundering schemes in financial institutions.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
|Today more than 170 crimes are listed in the federal money laundering statutes. They range from drug trafficking, gunrunning, murder for hire, fraud, acts of terrorism, and the illegal use of a wetlands. The list also includes certain foreign crimes. Therefore, a financial institution must educate its employees, understand its customers and their businesses, and have systems and procedures in place to distinguish routine transactions from ones that rise to the level of suspicious activity. The reporting and record keeping requirements of the BSA regulations create a paper trail for law enforcement to investigate money laundering schemes and other illegal activities. This paper trail operates to deter illegal activity and provides a means to trace movements of money through the financial system                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
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|The Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism (USA PATRIOT Act) of 2001 was enacted in response to the terrorist attacks, which occurred on September 11, 2001. The USA PATRIOT Act is intended to strengthen U.S. law enforcement's and the intelligence communities' abilities to work cohesively to combat terrorism on a variety of fronts. The impact of the PATRIOT Act on financial institutions of all kinds is significant and wide ranging. The PATRIOT Act contains sweeping anti-money laundering and financial transparency laws and requires various regulations, including standards for verifying customer identification at account opening, and rules to promote cooperation among financial institutions, regulators and law enforcement entities in identifying parties that may be involved in terrorism or money laundering.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
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|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Financial Services Modernization Legislation. In November 1999, the Gramm-Leach-Bliley (GLB) Act of 1999 was enacted. The GLB Act repealed provisions of the Glass-Steagall Act which restricted the affiliation of Federal Reserve member banks with firms "engaged principally" in specified securities activities, and which restricted officer, director, or employee interlocks between a member bank and any company or person "primarily engaged" in specified securities activities.  In addition, the GLB Act contained provisions that expressly preempt any state law restricting the establishment of financial affiliations, primarily related to insurance. The general effect of the law was to establish a comprehensive framework to permit affiliations among commercial banks, insurance companies, securities firms, and other financial service providers by revising and expanding the Bank Holding Company Act framework to permit a holding company to engage in a full range of financial activities through a new entity known as a "financial holding company." "Financial activities" was broadly defined to include not only banking, insurance and securities activities, but also merchant banking and additional activities that the Federal Reserve Board, in consultation with the Secretary of the Treasury, determines to be financial in nature, incidental to such financial activities, or complementary activities that do not pose a substantial risk to the safety and soundness of depository institutions or the financial system.  The GLB Act also permitted national banks to engage in expanded activities through the formation of financial subsidiaries. A national bank may have a subsidiary engaged in any activity authorized for national banks directly or any financial activity, except for insurance underwriting, insurance investments, real estate investment or development, or merchant banking, which may only be conducted through a subsidiary of a financial holding company. Financial activities include all activities permitted under new sections of the Bank Holding Company Act or permitted by regulation.
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|Fair and Accurate Credit Transactions Act ("FACT Act")The FACT Act includes many provisions concerning national credit reporting standards, and permits consumers, including the customers of the Company, to opt out of information sharing among affiliated companies for marketing purposes. The FACT Act also requires financial institutions, including banks, to notify their customers if they report negative information about them to credit bureaus or if the credit that is granted to them is on less favorable terms than are generally available. Banks also must comply with guidelines to be established by their federal banking regulators to help detect identity theft.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
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|Sarbanes-Oxley Act (SOA) The stated goals of the SOA are to increase corporate responsibility, to provide for enhanced penalties for accounting and auditing improprieties at publicly traded companies and to protect investors by improving the accuracy and reliability of corporate disclosures pursuant to the securities laws. The SOA includes very specific additional disclosure requirements and new corporate governance rules, requires the SEC and securities exchanges to adopt extensive additional disclosure, corporate governance and other related rules and mandates further studies of certain issues by the SEC and the Comptroller General. The SOA represents significant federal involvement in matters traditionally left to state regulatory systems, such as the regulation of the accounting profession, and to state corporate law, such as the relationship between a board of directors and management and between a board of directors and its committees. The SOA addresses, among other matters: audit committees; certification of financial statements by the chief executive officer and chief financial officer; the forfeiture of bonuses or other incentive-based compensation and profits from the sale of an issuer's securities by directors and senior officers in the twelve month period following initial publication of any financial statements that later require restatement; a prohibition on insider trading during pension plan black out periods; disclosure of off-balance sheet transactions; a prohibition on certain loans to directors and officers; expedited filing requirements for Forms 4; disclosure of a code of ethics and filing a Form 8-K for a change or waiver of such code; "real time" filing of periodic reports; the formation of a public accounting oversight board; auditor independence; and various increased criminal penalties for violations of securities laws. The SEC has enacted rules to implement various provisions of SOA. The federal banking regulators have adopted generally similar requirements concerning the certification of financial statements.                              
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|The Check Clearing for the 21st Century Act ("Check 21 Act"), became effective in October, 2004. The Check 21 Act creates a new negotiable instrument, called a "substitute check," which banks are required to accept as the legal equivalent of a paper check if it meets the requirements of the Check 21 Act. The Check 21 Act is designed to facilitate check truncation, to foster innovation in the check payment systems and to improve the payment system by shortening processing times and reducing the volume of paper                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
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|Consumer Laws and Regulations. In addition to the laws and regulations discussed herein, the Bank is also subject to certain consumer laws and regulations that are designed to protect consumers in transactions with banks. These laws and regulations include, but are not limited to, the Truth in Landing Act, the Truth in Savings Act, the Electronic Funds Transfer Act, the Expedited Funds Availability Act, the Equal Credit Opportunity Act, the Fair Housing Act, the Home Mortgage Disclosure Act and the Real Estate Settlement Procedures Act. These laws and regulations regulate the manner in which financial institutions must deal with customers when taking deposits or making loans to such customers. checks.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
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|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|TAXATION                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
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|Federal Taxation                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
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|The Company and its subsidiaries are subject to federal income taxation in the same general manner as other corporations, with some exceptions discussed below. The following discussion of federal taxation is intended only to summarize certain pertinent federal income tax matters and is not a comprehensive description of the tax rules applicable to the Company.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
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|Method of Accounting. For federal income tax purposes, the Company currently reports its income and expenses on the accrual method of accounting and uses a tax year ending December 31 for filing its consolidated federal income tax returns.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
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|7                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
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|Minimum Tax.The Internal Revenue Code of 1986 imposes an alternative minimum tax ("AMT") at a rate of 20% on a base of regular taxable income plus certain tax preferences ("alternative minimum taxable income" or "AMTI"). The AMT is payable to the extent such AMTI is in excess of an exemption amount. Net operating losses can offset no more than 90% of AMTI. Certain payments of alternative minimum tax may be used as credits against regular tax liabilities in future years. The Company is subject to the AMT but has no such amounts available as credits for carryover.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
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|Net Operating Loss Carryovers. A financial institution may carry back net operating losses to the preceding two taxable years and forward to the succeeding 20 taxable years, subject to certain limitations. The Company has no net operating loss carryforwards.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Corporate Dividends. The Company may exclude from its income 100% of dividends received from the Bank and CNB Mortgage as members of the same affiliated group of corporations.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Internal Revenue Service Audits. The Company is subject to periodic audits of its federal income tax returns. The Company's returns have not been audited by the Internal Revenue Service during the last five years.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
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|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|State Taxation                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|State of New York. The Company reports income on a consolidated calendar year basis to New York State. New York State franchise tax Article 32 on corporations is imposed in an amount equal to the greater of (a) 7.5% of "entire net income" allocable to New York State, (b) 3% of "alternative entire net income" allocable to New York State, (c) 0.01% of the average value of assets allocable to New York State, or (d) nominal minimum tax. Entire net income is based on Federal taxable income, subject to certain modifications. Alternative entire net income is based on entire net income with certain modifications.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Corporate Dividends. Sixty percent of dividends from qualifying real estate investment trusts (REIT) are excluded from state taxation.  The Governor has proposed to eliminate this exclusion in his fiscal 2006 budget.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
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|Article 32 which sets forth the taxation of financial institutions, expired on December 31, 2005, with no provision for its reenactment.  If the New York State Legislature does not reenact Article 32, the Company's future tax expense and value of deferred tax assets may change substantially.  The Company would be subject to Article 9 taxation, in general, but the taxation of certain transactions unique to the financial services industry are unknown under this Article.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
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|In his fiscal 2007 budget, the governor of New York State has proposed to make Article 32 permanent.  This would end the uncertainty discussed above.  However, governor Pataki has also proposed a change in the tax treatment for REIT's, which if implemented would add approximately $0.3 million to the Company's annual tax expense.  If passed by the New York State Legislature, the Company would, in order to retain current profit margins, have to increase the cost of residential loans to borrowers by between one-eighth and one-quarter of a percentage point.  Management does not believe this proposed hidden tax on New York State residents is sound fiscal policy and believes this ultimately will lead more financial institutions to move investments out of New York State into jurisdictions with lower tax rates.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
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|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|CRITICAL ACCOUNTING POLICY                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
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|The SEC defines "critical accounting policy" as, "most important to the portrayal of the company's financial condition and results, and it requires management's most difficult, subjective, or complex judgments, often as a result of the need to make estimates about the effect of matters that are inherently uncertain."  Management considers the "Allowance for Loan Losses" as the Company's critical accounting policy.  See Part II, Item 7 for a complete discussion.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
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|AVAILABLE INFORMATION                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|The Company electronically files quarterly (10-Q) and annual (10-K) and Proxy reports with the Securities and Exchange Commission on a regular basis.  Other reports are filed when necessary in accordance with the Act.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
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|The public may read and copy any materials the Company files with the SEC at the SEC's Public Reference Room at 450 Fifth Street, N.W., Washington, D.C. 20549. The public may obtain information on the operation of the Public Reference Room by calling the SEC at 1-800-SEC-0330. The SEC maintains an Internet site that contains electronic versions of reports, proxy and information statements, and other information regarding the Company, which are filed electronically with the SEC at http://www.sec.gov. In addition, we will provide, at no cost to shareholders, paper (or electronic, if available) copies of the foregoing documents upon written request to our Corporate Secretary, Robert G. Sheridan, 72 South Main Street, Canandaigua, New York 14424.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
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|A link to the Company's filings on the SEC web site is available at the Bank's web site http://www.cnbank.com.  Reference to our internet site is not intended to incorporate any of the information contained on our site into this document.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
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|Item 1A. Risk Factors                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|The Company's business model is subject to many risks and uncertainties.  Although the Company seeks ways to manage these risks and develop programs to control those that management can, the Company ultimately cannot predict the future. Actual results may differ materially from management's expectations.  Some of these significant risks and uncertainties are discussed below.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
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|Asset Quality. A significant source of risk for the Company arises from the possibility that losses will be sustained because borrowers, guarantors and related parties may fail to perform in accordance with the terms of their loan agreements. Most loans originated by the Company are secured, but some loans are unsecured depending on the nature of the loan. With respect to secured loans, the collateral securing the repayment of these loans includes a wide variety of real and personal property that may be insufficient to cover the obligations owed under such loans. Collateral values may be adversely affected by changes in prevailing economic, environmental and other conditions, including declines in the value of real estate, changes in interest rates, changes in monetary and fiscal policies of the federal government, wide-spread disease, terrorist activity, environmental contamination and other external events. In addition, collateral appraisals that are out of date or that do not meet industry recognized standards may create the impression that a loan is adequately collateralized when in fact it is not. The Company has adopted underwriting and credit monitoring procedures and policies, including the establishment and review of the allowance for loan losses and regular review of appraisals and borrower financial statements, that management believes are appropriate to mitigate the risk of loss by assessing the likelihood of nonperformance and the value of available collateral, monitoring loan performance and diversifying the Company's credit portfolio. Such policies and procedures, however, may not prevent unexpected losses that could have a material adverse effect on the Company's business, financial condition, results of operations or liquidity. See Part II, Item 7, "Loans" for a complete discussion.                                                                                                                                                                                                                                                                                 
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|Interest Rate Risk. The Company's earnings depend largely on the relationship between the yield on earning assets, primarily loans and investments, and the cost of funds, primarily deposits and borrowings. This relationship, known as the interest rate spread, is subject to fluctuation and is affected by economic and competitive factors which influence interest rates, the volume and mix of interest-earning assets and interest-bearing liabilities and the level of non-performing assets. Fluctuations in interest rates affect the demand of customers for the Company's products and services. The Company is subject to interest rate risk to the degree that its interest-bearing liabilities reprice or mature more slowly or more rapidly or on a different basis than its interest-earning assets. Significant fluctuations in interest rates could have a material adverse effect on the Company's business, financial condition, results of operations or liquidity. For additional information regarding interest rate risk, see Part II, Item 7A, "Quantitative and Qualitative Disclosures About Market Risk."                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
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|Breach of Information Security and Technology Dependence. The Company depends upon data processing, software, communication, and information exchange on a variety of computing platforms and networks and over the Internet. Despite instituted safeguards, the Company cannot be certain that all of its systems are entirely free from vulnerability to attack or other technological difficulties or failures. The Company relies on the services of a variety of vendors to meet its data processing and communication needs. If information security is breached or other technology difficulties or failures occur, information may be lost or misappropriated, services and operations may be interrupted and the Company could be exposed to claims from customers. Any of these results could have a material adverse effect on the Company's business, financial condition, results of operations or liquidity.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
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|Economic Conditions, Limited Geographic Diversification. The Company's operations are located in Western New York State. Because of the geographic concentration of its operations, the Company's results depend largely upon economic conditions in this area, which include losses of manufacturing jobs in Rochester and minimal population growth throughout the region. Further deterioration in economic conditions could adversely affect the quality of the Company's loan portfolio and the demand for its products and services, and accordingly, could have a material adverse effect on the Company's business, financial condition, results of operations or liquidity. See also "Geographic Market Served" and "Competition."                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
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|Ability of the Company to Execute Its Business Strategy. The financial performance and profitability of the Company will depend on its ability to execute its strategic plan and manage its future growth. Failure to execute these plans could have a material adverse effect on the Company's business, financial condition, results of operations or liquidity.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Competition. Regional, national and international competitors are much larger in total assets and capitalization than the Company and have greater access to capital markets and can offer a broader array of financial services than the Company. There can be no assurance that the Company will be able to compete effectively in its markets. Furthermore, developments increasing the nature or level of competition could have a material adverse effect on the Company's business, financial condition, results of operations or liquidity. See also See also "Geographic Market Served", "Competition," and "Supervision and Regulation of Banking Activities."                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Government Regulation and Monetary Policy.The Company and the banking industry are subject to extensive regulation and supervision under federal and state laws and regulations. The restrictions imposed by such laws and regulations limit the manner in which the Company conducts its business, undertakes new investments and activities and obtains financing. These regulations are designed primarily for the protection of the deposit insurance funds and consumers and not to benefit the Company's shareholders. Financial institution regulation has been the subject of significant legislation in recent years and may be the subject of further significant legislation in the future, none of which is in the control of the Company. Significant new laws or changes in, or repeals of, existing laws could have a material adverse effect on the Company's business, financial condition, results of operations or liquidity. Further, federal monetary policy, particularly as implemented through the Federal Reserve System, significantly affects credit conditions for the Company, and any unfavorable change in these conditions could have a material adverse effect on the Company's business, financial condition, results of operations or liquidity. See also "Supervision and Regulation of Banking Activities."                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|9                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Compliance with Bank Secrecy Act and Related Laws and Regulations These specific laws and regulations have significant implications for all financial institutions including any entity involved in the transfer of money.  They increase due diligence requirements and reporting obligations for financial institutions, create new crimes and penalties, and require the federal banking agencies, in reviewing merger and other acquisition transactions, to consider the effectiveness of the parties to such transactions in combating money laundering activities. Even innocent noncompliance and inconsequential failure to follow the regulations may result in significant fines or other penalties, which could have a material adverse impact on the Company's business, financial condition, results of operations or liquidity.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Item 1B. Unresolved Staff Comments                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Not applicable.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        

|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Item 2.  Properties                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Canandaigua National Corporation operates from the main office of the Bank at 72 South Main Street, Canandaigua, New York.  The Company owns a building in Pittsford, New York, that is occupied by CNB Mortgage Company.                                                                                                                                                                                                                                                                                                                                                                                                                           
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|As of December 31, 2005, the Bank's operations were conducted from eight offices (including the main office) located in Ontario County, New York, and eleven offices located in Monroe County, New York. Nine are owned by the Bank with the others leased from unrelated third parties over terms ranging from one month to 25 years.  The main office of the Bank is located at 72 South Main Street, Canandaigua, New York.  The administrative, operational and electronic data processing offices of the Bank are located in this facility. There are drive-up facilities located at all permanent offices except for the Eastview Mall office.
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|The Bank, a member of the NYCE network, also provides, free to its customers, 24-hour banking services through 44 automatic teller facilities located at each office and through remote automatic teller machines and cash dispenser machines.   Management anticipates that in order to expand its service to its Monroe and Ontario County customers, the Bank will increase the number of remote cash-dispenser machines in operation from time to time.                                                                                                                                                                                         
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|The carrying value of the Company's properties as of December 31, 2005, is included in Note 5 set forth of the 2005 Consolidated Financial Statement, which is incorporated herein by reference thereto.                                                                                                                                                                                                                                                                                                                                                                                                                                            
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Item 3.  Legal Proceedings                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|The Company and its subsidiaries are, from time to time, parties to or otherwise involved in legal proceedings arising in the normal course of business as either plaintiffs or defendants. Management does not believe that there is any pending or threatened proceeding against the Company or its subsidiaries which, if determined adversely, would have a material effect on the Company's business, results of operations, or financial condition.                                                                                                                                                                                           
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Item 4.  Submission of Matters to a Vote of Security Holders                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Not applicable.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     



|                                                                                                                                                             
|-------------------------------------------------------------------------------------------------------------------------------------------------------------
|PART II                                                                                                                                                      
|                                                                                                                                                             
|Item 5. Market for Registrant's Common Equity; Related Shareholder Matters and Issuer Purchasesof Equity Securities                                          
|The information required by this item is included in the section entitled Our Common Stock in the 2005 Annual Report and is incorporated herein by reference.
|                                                                                                                                                             
|10                                                                                                                                                           



|                                                                                                                                                                                                                                 
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Item 6. Selected Financial Data                                                                                                                                                                                                  
|                                                                                                                                                                                                                                 
|The information required by this item is included in the section entitled Financial Highlights in the 2005 Annual Report and is incorporated herein by reference.                                                                
|                                                                                                                                                                                                                                 
|Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations                                                                                                                                    
|The information required by this item is included in the section entitled Management's Discussion and Analysis of Financial Condition and Results of Operationsin the 2005 Annual Report and is incorporated herein by reference.
|                                                                                                                                                                                                                                 
|Item 7A. Quantitative and Qualitative Disclosures about Market Risk                                                                                                                                                              
|                                                                                                                                                                                                                                 
|The information required by this item is included in the section entitledInterest Rate Risk Managementin the 2005 Annual Report and is incorporated herein by reference.                                                         
|                                                                                                                                                                                                                                 
|Item 8. Financial Statements and Supplementary Data                                                                                                                                                                              
|The information required by this item is included in the section entitledConsolidated Financial Statements in the 2005 Annual Report and is incorporated herein by reference.                                                    
|                                                                                                                                                                                                                                 
|Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure                                                                                                                                     
|Not applicable.                                                                                                                                                                                                                  

|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Item 9A.  Controls and Procedures                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|The Company's Chief Executive Officer and Chief Financial Officer have concluded, based on their evaluation as of December 31, 2005, that the Company's disclosure controls and procedures (as defined in Securities Exchange Act Rules 13a-14(c) and 15d-14(c)) are effective to ensure that information required to be disclosed in the reports that the Company files or submits under the Securities Exchange Act of 1934 is recorded, processed, summarized and reported, within the time periods specified in the Securities and Exchange Commission's rules and forms. There have been no changes in the Company's internal control over financial reporting that occurred during the fourth quarter of 2005, that have materially affected, or are reasonably likely to materially affect, the Company's internal control over financial reporting.
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|Management's annual report on internal control over financial reporting and the attestation report of KPMG LLP are included on pages 20 and 21 of the 2005 Annual Report, which is incorporated herein by reference thereto.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|Item 9B.  Other Information                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|Not applicable.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|PART III                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|Item 10.  Directors and Executive Officers of the Registrant                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|The information required by this item is included in the sections entitledInformation on Directors and Nominees, Transactions with Certain Related Persons, and Section 16(a) Beneficial Ownership Reporting Compliance in the Proxy Statement for the 2006 Annual Meeting of Shareholders and is incorporated herein by reference, except for items required under Regulation S-K 229.401(b) and 229.406, which follows:                                                                                                                                                                                                                                                                                                                                                                                                                                  
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|All executive officers listed below are employed by the Bank, have been employed by the Bank for at least five years and in the business of banking for more than five years.  All executive officers serve at the pleasure of the Board of Directors.  No executive officer has any arrangement or understanding between them and any other person pursuant to which he or she was selected as and officer. Ages and titles are as of January 1, 2006.                                                                                                                                                                                                                                                                                                                                                                                                    
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|11                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           



|Name                    | Age | Title                                                                        
|----------------------- | --- | -----------------------------------------------------------------------------
|Gary L. Babbitt         | 48  | Senior Vice President, Commercial Services                                   
|Joseph L. Dugan         | 42  | Senior Vice President, Customer Value Management                             
|George W. Hamlin, IV    | 64  | President, Chief Executive Officer, Trust and CRA Officer                    
|Richard H. Hawks, Jr.   | 54  | Senior Vice President, Trust Officer                                         
|Lawrence A. Heilbronner | 40  | Senior Vice President, Chief Financial Officer, Finance and Operations       
|James C. Minges         | 64  | Senior Vice President, Commercial Services                                   
|Sandra U. Roberts       | 43  | Senior Vice President, Information Technology                                
|Robert G. Sheridan      | 57  | Senior Vice President, Cashier                                               
|Steven H. Swartout      | 47  | Senior Vice President, Corporate Risk Operations/Security and General Counsel
|Scott B. Trumbower      | 45  | Vice President, Manager Wealth Strategies Group                              
|                        |     |                                                                              

|The Company has adopted a Code of Conduct, which applies to all employees of the Company and its subsidiaries. The Code of Conduct is posted on the Company's website at http://www.cnbank.com/code_of_conduct.pdf.                                                                                                             
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|                                                                                                                                                                                                                                                                                                                                
|Item 11.  Executive Compensation                                                                                                                                                                                                                                                                                                
|                                                                                                                                                                                                                                                                                                                                
|The information required by this item is included in the sections entitledThe Officer's Compensation Committee, Board of Directors Compensation and Executive Compensation, and Performance Graphin the Proxy Statement for the 2006 Annual Meeting of Shareholders and is incorporated herein by reference.                    
|                                                                                                                                                                                                                                                                                                                                
|Item 12.  Security Ownership of Certain Beneficial Owners and Management and Related Shareholder Matters                                                                                                                                                                                                                        
|                                                                                                                                                                                                                                                                                                                                
|The information required by this item is included in Note 14 to the Consolidated Financial Statementsin the 2005 Annual Report  and the section entitled Stock Ownership of Certain Beneficial Owners and Management in the Proxy Statement for the 2006 Annual Meeting of Shareholders and is incorporated herein by reference.
|                                                                                                                                                                                                                                                                                                                                
|Item 13.  Certain Relationships and Related Transactions                                                                                                                                                                                                                                                                        
|                                                                                                                                                                                                                                                                                                                                
|The information required by this item is included in Note 4 to the Consolidated Financial Statementsin the 2005 Annual Report  and the section entitled Transactions with Certain Related Persons in the Proxy Statement for the 2006 Annual Meeting of Shareholders and is incorporated herein by reference.                   
|                                                                                                                                                                                                                                                                                                                                
|Item 14.  Principal Accounting Fees and Services                                                                                                                                                                                                                                                                                
|                                                                                                                                                                                                                                                                                                                                
|The information required by this item is included the section entitled Report of the Audit Committee in the Proxy Statement for the 2006 Annual Meeting of Shareholders and is incorporated herein by reference.                                                                                                                
|                                                                                                                                                                                                                                                                                                                                
|                                                                                                                                                                                                                                                                                                                                
|PART IV                                                                                                                                                                                                                                                                                                                         
|                                                                                                                                                                                                                                                                                                                                
|Item 15.  Exhibits, Financial Statement Schedules                                                                                                                                                                                                                                                                               
|                                                                                                                                                                                                                                                                                                                                
|The following documents are filed as part of this report:                                                                                                                                                                                                                                                                       
|                                                                                                                                                                                                                                                                                                                                
|(1)  Financial statements are filed as part of this Annual Report on Form 10-K.  See Part II, Item 8. "Financial Statements and Supplementary Data."                                                                                                                                                                            
|                                                                                                                                                                                                                                                                                                                                
|                                                                                                                                                                                                                                                                                                                                
|(2)  Schedules - All financial statement schedules are omitted, because the required information is not applicable or is included in the Consolidated Financial Statements.                                                                                                                                                     
|                                                                                                                                                                                                                                                                                                                                
|12                                                                                                                                                                                                                                                                                                                              



|(3) Exhibits
|------------
|            
|            
|            
|(3.i)       
|            
|(3.ii.)     
|            
|(10.1)      
|            
|(10.2)      
|            
|(11)        
|            
|(13)        
|            
|(20.1)      
|            
|(20.2)      
|            
|(21)        
|            
|(24)        
|            
|(31.1)      
|            
|(31.2)      
|            
|(32)        
|            
|13          



|                                                                                                                                
|--------------------------------------------------------------------------------------------------------------------------------
|SIGNATURES                                                                                                                      
|                                                                                                                                
|Pursuant  to the  requirements  of  Section  13 or 15(d) of the  Securities Exchange Act of 1934, the registrant has duly caused
|this report to be signed on its behalf by the undersigned, thereunto duly authorized                                            
|.                                                                                                                               
|                                                                                                                                
|CANANDAIGUA NATIONAL CORPORATION                                                                                                
|                                                                                                                                
|                                                                                                                                
|                                                                                                                                
|February 15, 2006                       By:/s/George W. Hamlin, IV                                                              
|George W. Hamlin, IV, President and                                                                                             
|Chief Executive Officer                                                                                                         
|                                                                                                                                



|Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the Registrant in the capacities and on the dates indicated.
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|Signature                  | Title                                     | Date             
|-------------------------- | ----------------------------------------- | -----------------
|                           |                                           |                  
|/s/George W. Hamlin, IV    | President and Chief Executive Officer     | February 15, 2006
|(George W. Hamlin, IV)     |                                           |                  
|                           |                                           |                  
|/s/Lawrence A. Heilbronner | Senior Vice President and Chief Financial | February 15, 2006
|(Lawrence A. Heilbronner)  | Officer                                   |                  
|                           |                                           |                  
|                           |                                           |                  
|/s/George W. Hamlin, IV    | For Directors as Attorney-In-Fact         | February 15, 2006
|(George W. Hamlin, IV)     |                                           |                  
|                           |                                           |                  
|George W. Hamlin, IV       |                                           |                  
|Robert G. Sheridan         |                                           |                  
|Patricia A. Boland         |                                           |                  
|James S. Fralick           |                                           |                  
|Daniel P. Fuller           |                                           |                  
|Frank H. Hamlin, III       |                                           |                  
|Stephen D. Hamlin          |                                           |                  
|Richard P. Miller, Jr.     |                                           |                  
|Thomas S. Richards         |                                           |                  
|Caroline C. Shipley        |                                           |                  
|Sue S. Stewart             |                                           |                  
|Alan J. Stone              |                                           |                  
|                           |                                           |                  
|                           |                                           |                  
|14                        



|INDEX OF EXHIBITS
|-----------------
|                 
|                 
|                 
|(3.i)            
|                 
|(3.ii.)          
|                 
|(10.1)           
|                 
|(10.2)           
|                 
|(11)             
|                 
|(13)             
|                 
|(20.1)           
|                 
|(20.2)           
|                 
|(21)             
|                 
|(24)             
|                 
|(31.1)           
|                 
|(31.2)           
|                 
|(32)             
|                 
|15