|Exhibit 31.1
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|CERTIFICATION OF PERIODIC FINANCIAL REPORT(Section 302 Certification)
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|   |  | I, Dann H. Bowman, certify that:                                                                            
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|1. |  | I have reviewed this quarterly report on Form 10-Q of Chino Commercial Bancorp;                             
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|2. |  | Based on my knowledge, this 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 report;                     
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|3. |  | Based on my knowledge, the financial statements, and other financial information included in this 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 report;                                            
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|4. |  | The registrants other certifying officer 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)) and internal control     
|   |  | over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and  
|   |  | have:                                                                                                       
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|   |  | a)                                                                                                          
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|   |  | b)                                                                                                          
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|   |  | external purposes in accordance with generally accepted accounting principles;                              
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|   |  | c)                                                                                                          
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|   |  | d)                                                                                                          
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|5. |  | The registrants other certifying officer and I have disclosed, based on our most recent evaluation of      
|   |  | internal control over financial reporting, to the registrants auditors and the audit committee of the      
|   |  | registrants board of directors (or persons performing the equivalent functions):                           
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|   |  | a)                                                                                                          
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|   |  |                                                                                                             
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|   |  | b)                                                                                                          
|   |  |                                                                                                             



| | Date: August 11, 2008
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| | By:/s/ Dann H. BowmanDann H. BowmanPresident and Chief Executive Officer
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