EXHIBIT 31


I, Robert E. Churchill, the Chairman and Chief Executive Officer of CNB
Corporation (the "registrant") certify that:

1) I have reviewed this quarterly report on Form 10-Q of the registrant;

2) Based on my knowledge, this quarterly report does not contain any untrue
statement of a material fact or omit to state a material fact necessary to make
the statements made, in light of the circumstances under which such statements
were made, not misleading with respect to the period covered by this quarterly
report;

3) Based on my knowledge, the financial statements, and other financial
information included in this quarterly report, fairly present in all material
respects the financial condition, results of operations and cash flows of the
registrant as of, and for, the periods presented in this quarterly report;

4) The registrant's other certifying officers and I are responsible for
establishing and maintaining disclosure controls and procedures (as defined in
Exchange Act Rules 13a-15(e) and 15d-15(e) for the registrant and we have:

     (i)   Designed such disclosure controls and procedures, or caused such
           disclosure controls and procedures to be designed under our
           supervision, to ensure that material information relating to the
           registrant is made known to us by others, particularly during the
           period in which this quarterly report is being prepared;

     (ii)  [Intentionally omitted];

     (iii) Evaluated the effectiveness of the registrant's disclosure controls
           and procedures and presented in this report our conclusions about the
           effectiveness of the disclosure controls and procedures, as of the
           end of the period covered by this report based on such evaluation;
           and

     (iv)  Disclosed in this report any change in the registrant's internal
           control over financial reporting that occurred during registrant's
           most recent fiscal quarter (registrant's fourth fiscal quarter in the
           case of an annual report) that has materially affected, or is
           reasonably likely to materially affect, registrant's internal control
           over financial reporting; and

5) The registrant's other certifying officers and I have disclosed, based on our
most recent evaluation, to the registrant's auditors and the audit committee of
the registrant's board of directors (or persons fulfilling the equivalent
function):

     (i)   All significant deficiencies and material weaknesses in the design or
           operation of internal control over financial reporting which are
           reasonably likely to affect the registrant's ability to record,
           process, summarize and report financial information; and

     (ii)  Any fraud, whether or not material, that involves management or other
           employees who have a significant role in the registrant's internal
           control over financial reporting.

Date: November 13, 2003


/s/ Robert E. Churchill
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Robert E. Churchill
Chairman and Chief Executive Officer