**EXHIBIT 31.1**

 

**CERTIFICATIONPURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002**

 

I, Kevin W. Quinlan, President,Chief Operating Officer and Treasurer of Boston Biomedica, Inc., certify that:

 

1. I have reviewed this reporton Form 10-Q of Boston Biomedica, Inc.;

 

2. Based on my knowledge, thisreport does not contain any untrue statement of a material fact or omit tostate a material fact necessary to make the statements made, in light of thecircumstances under which such statements were made, not misleading withrespect to the period covered by this report;

 

3. Based on my knowledge, thefinancial statements, and other financial information included in this  report, fairly present in all materialrespects the financial condition, results of operations and cash flows of theregistrant as of, and for, the periods presented in this report;

 

4. I am responsible forestablishing and maintaining disclosure controls and procedures (as defined inExchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and I have:

 

a) Designed such disclosurecontrols and procedures, or caused such disclosure controls and procedures tobe designed under our supervision, to ensure that material information relatingto the registrant, including its consolidated subsidiaries, is made known to usby others within those entities, particularly during the period in which thisreport is being prepared;

 

b) (Omitted)

 

c) Evaluated the effectivenessof the registrant’s disclosure controls and procedures and presented in thisreport our conclusions about the effectiveness of the disclosure controls andprocedures, as of the end of the period covered by this report based on suchevaluation; and

 

d) Disclosed in this report anychange in the registrant’s internal control over financial reporting thatoccurred during the registrant’s most recent fiscal quarter (the registrant’sfourth fiscal quarter in the case of an annual report) that has materiallyaffected, or is reasonably likely to materially affect, the registrant’sinternal control over financial reporting; and

 

5. I have disclosed, based onour most recent evaluation of internal control over financial reporting, to theregistrant’s auditors and the audit committee of registrant’s board ofdirectors (or persons performing the equivalent functions):

 

a) All significant deficienciesand material weaknesses in the design or operation of internal control overfinancial reporting which are reasonably likely to adversely affect theregistrant’s ability to record, process, summarize and report financial data;and

 

b) Any fraud, whether or notmaterial, that involves management or other employees who have a significantrole in the registrant’s internal controls.

 
| Date: August  14, 2003                                         |
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|                                                           |
| /s/ Kevin W.  Quinlan                                          |   |
| Kevin W.  Quinlan                                              |
| President, Chief  Operating Officer and Treasurer              |
| (Principal  Executive Officer and Principal Financial Officer) |

 

 

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