**Exhibit31.1**

**CHIEFEXECUTIVE OFFICER CERTIFICATION**

I, Marc D.Grodman, Chief Executive Officer of Bio-Reference Laboratories, Inc. (the“Company”) do hereby certify that:

I have reviewedthis annual report on Form 10-K of the Company for the fiscal year endedOctober 31, 2006

Based on myknowledge, this annual report does not contain any untrue statement of amaterial fact or omit to state a material fact necessary to make the statementsmade, in light of the circumstances under which such statements were made, notmisleading with respect to the period covered by this annual report;

Based on myknowledge, the financial statements, and other financial information includedin this annual report, fairly present in all material respects the financialcondition, results of operations and cash flows of the Company as of, and for,the periods presented in this annual report;

The Company’sother certifying officer and I are responsible for establishing and maintainingdisclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e)and 15d-15(e)) and internal control over financial reporting (as defined inExchange Act Rules 13a-15(f) and 15d-15(f)) for the Company and have:

(a)                                  designedsuch disclosure controls and procedures, or caused such disclosure controls andprocedures to be designed under our supervision, to ensure that materialinformation relating to the Company, including its consolidated subsidiaries,is made known to us by others within those entities, particularly during theperiod in which this annual report was being prepared;

(b)                                 designedsuch internal control over financial reporting, or caused such internal controlover financial reporting to be designed under our supervision, to providereasonable assurance regarding the reliability of financial reporting and thepreparation of financial statements for external purpose in accordance withgenerally accepted accounting principles;

(c)                                  evaluatedthe effectiveness of the Company’s disclosure controls and procedures andpresented     in this annual report on Form 10-K for the fiscal year endedOctober 31, 2006, our conclusions about the effectiveness of the disclosurecontrols and procedures, as of the end of the period covered by this annualreport based on such evaluation; and

(d)                                 disclosedin this annual report on Form 10-K, any change in the Company’s internalcontrol over financial reporting that occurred during the Company’s most recentfiscal quarter (namely the fourth quarter of fiscal 2006) that has materiallyaffected, or is reasonably likely to materially affect, the Company’s internalcontrol over financial reporting; and

The Company’sother certifying officer and I have disclosed, based on our most recentevaluation of internal control over financial reporting, to the Company’s auditorsand the audit committee of the Company’s board of directors:

(a)                                  allsignificant deficiencies and material weaknesses in the design or operation ofinternal control over financial reporting which are reasonably likely toadversely affect the Company’s ability to record, process, summarize and reportfinancial information; and

(b)                                 anyfraud, whether or not material, that involves management or other employees whohave a significant role in the Company’s internal control over financialreporting.

Dated:    January 12, 2007
|   | /S/ Marc D. Grodman              |   |
|--------|----------------------------------|--------|
|   | Marc D. Grodman                  |
|   | Chief Executive  Officer         |
|   | Bio-Reference  Laboratories, Inc |

 

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