<SUBMISSION>
<ACCESSION-NUMBER>0000950117-02-001834
<TYPE>8-K
<PUBLIC-DOCUMENT-COUNT>5
<PERIOD>20020812
<ITEMS>9
<FILING-DATE>20020813
<FILER>
<COMPANY-DATA>
<CONFORMED-NAME>QUEST DIAGNOSTICS INC
<CIK>0001022079
<ASSIGNED-SIC>8071
<IRS-NUMBER>161387862
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>8-K
<ACT>34
<FILE-NUMBER>001-12215
<FILM-NUMBER>02727804
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>ONE MALCOLM AVE
<CITY>TETERBORO
<STATE>NJ
<ZIP>07608
<PHONE>2013935000
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>ONE MALCOLM AVE
<CITY>TETERBORO
<STATE>NJ
<ZIP>07601
</MAIL-ADDRESS>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>CORNING CLINICAL LABORATORIES INC
<DATE-CHANGED>19960903
</FORMER-COMPANY>
</FILER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>a33176.txt
<DESCRIPTION>QUEST DIAGNOSTICS, INC.
<TEXT>

<Page>
                       SECURITIES AND EXCHANGE COMMISSION
                              Washington, DC 20549

                          -----------------------------

                                    Form 8-K

                                 CURRENT REPORT
                     Pursuant to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934
                          -----------------------------

        Date of Report (Date of earliest event reported): August 12, 2002

                         Quest Diagnostics Incorporated
             (Exact name of Registrant as specified in its charter)
<TABLE>
                        <S>                                     <C>                                    <C>


                   Delaware                                     1-12215                               16-1387862
         (State or other jurisdiction                   Commission File Number             (I.R.S. Employer Identification
              of incorporation)                                                                        Number)

</TABLE>

                         -----------------------------
                               One Malcolm Avenue
                           Teterboro, New Jersey 07608
                                 (201) 393-5000
         (Address of principal executive offices and telephone number,
                              including area code)
                          -----------------------------



Item 9.           Regulation FD Disclosure.
                  ------------------------

On August 12, 2002, Kenneth W. Freeman, the Chief Executive Officer of Quest
Diagnostics Incorporated, and Robert A. Hagemann, the Chief Financial Officer of
Quest Diagnostics Incorporated, submitted to the Securities and Exchange
Commission sworn statements pursuant to Securities and Exchange Commission Order
4-460 and Section 906 of the Sarbanes-Oxley Act of 2002.






<PAGE>


                                    Signature



                  Pursuant to the requirements of the Securities Exchange Act of
1934, as amended, the registrant has duly caused this report to be signed on its
behalf by the undersigned hereunto duly authorized.

Dated:   August 12, 2002

                         QUEST DIAGNOSTICS INCORPORATED

                         By:    /s/ Leo C. Farrenkopf, Jr.
                         -----------------------------------------
                         Name:  Leo C. Farrenkopf, Jr.
                         Title:  Vice President and Secretary






     Exhibit Index

     Exhibit 99.1: Statement under Oath of Chief Executive Officer dated
     August 12, 2002

     Exhibit 99.2: Statement under Oath of Chief Financial Officer dated
     August 12, 2002

     Exhibit 99.3  Statement Pursuant to 18. U.S.C.'SS'1350 of Chief Executive
     Officer dated August 12, 2002

     Exhibit 99.4  Statement Pursuant to 18. U.S.C.'SS'1350 of Chief Financial
     Officer dated August 12, 2002

                             STATEMENT OF DIFFERENCES
                             ------------------------

The section symbol shall be expressed as....................................'SS'


</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99
<SEQUENCE>3
<FILENAME>ex99-1.txt
<DESCRIPTION>EXHIBIT 99.1
<TEXT>

<PAGE>




                                                  Exhibit 99.1

                  STATEMENT UNDER OATH OF PRINCIPAL EXECUTIVE OFFICER AND
PRINCIPAL FINANCIAL OFFICER REGARDING FACTS AND CIRCUMSTANCES RELATING TO
EXCHANGE ACT FILINGS

     I, Kenneth W. Freeman, state and attest that:

(1)               To the best of my knowledge, based upon a review of the
                  covered reports of Quest Diagnostics Incorporated, and, except
                  as corrected or supplemented in a subsequent covered report:

          o           no covered report contained an untrue statement of a
                      material fact as of the end of the period covered by such
                      report (or in the case of a report on Form 8-K or
                      definitive proxy materials, as of the date on which it was
                      filed); and

          o           no covered report omitted to state a material fact
                      necessary to make the statements in the covered report, in
                      light of the circumstances under which they were made, not
                      misleading as of the end of the period covered by such
                      report (or in the case of a report on Form 8-K or
                      definitive proxy materials, as of the date on which it was
                      filed).

(2)      I have reviewed the contents of this statement with the Audit and
         Finance Committee of Quest Diagnostics Incorporated.

(3)      In this statement under oath, each of the following, if filed on or
         before the date of this statement, is a "covered report":

         o            the Annual Report on Form 10-K for the year ended
                      December 31, 2001 of Quest Diagnostics Incorporated;

         o            all reports on Form 10-Q, all reports on Form 8-K and all
                      definitive proxy materials of Quest Diagnostics
                      Incorporated filed with the Commission subsequent to the
                      filing of the Form 10-K identified above; and

         o            any amendments to any of the foregoing.


/s/ Kenneth W. Freeman
-----------------------------
    Kenneth W. Freeman                      Subscribed and sworn to
    Chairman of the Board and               Before me this 12th day of
    Chief Executive Officer                 August 2002.
    August 12, 2002
                                            /s/ Brenda Pereira
                                            -----------------------------------
                                           Notary Public

                                             My Commission Expires: July 6, 2003




</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99
<SEQUENCE>4
<FILENAME>ex99-2.txt
<DESCRIPTION>EXHIBIT 99.2
<TEXT>



<PAGE>

                                                                    Exhibit 99.2
                 STATEMENT UNDER OATH OF PRINCIPAL EXECUTIVE OFFICER AND
PRINCIPAL FINANCIAL OFFICER REGARDING FACTS AND CIRCUMSTANCES RELATING TO
EXCHANGE ACT FILINGS

     I, Robert A. Hagemann, state and attest that:

(1)           To the best of my knowledge, based upon a review of the covered
              reports of Quest Diagnostics Incorporated, and, except as
              corrected or supplemented in a subsequent covered report:

                   o  no covered report contained an untrue statement of a
                      material fact as of the end of the period covered by such
                      report (or in the case of a report on Form 8-K or
                      definitive proxy materials, as of the date on which it was
                      filed); and

                   o  no covered report omitted to state a material fact
                      necessary to make the statements in the covered report, in
                      light of the circumstances under which they were made, not
                      misleading as of the end of the period covered by such
                      report (or in the case of a report on Form 8-K or
                      definitive proxy materials, as of the date on which it was
                      filed).

(2)      I have reviewed the contents of this statement with the Audit and
         Finance Committee of Quest Diagnostics Incorporated.

(3)      In this statement under oath, each of the following, if filed on or
         before the date of this statement, is a "covered report":

                   o  the Annual Report on Form 10-K for the year ended
                      December 31, 2001 of Quest Diagnostics Incorporated;

                   o  all reports on Form 10-Q, all reports on Form 8-K and all
                      definitive proxy materials of Quest Diagnostics
                      Incorporated filed with the Commission subsequent to the
                      filing of the Form 10-K identified above; and

                   o  any amendments to any of the foregoing.

/s/ Robert A. Hagemann
----------------------
  Robert A. Hagemann                        Subscribed and sworn to
  Chief Financial Officer                   Before me this 12th day of
  August 12, 2002                           August 2002.
                                            /s/ Brenda Pereira
                                            ----------------------------------
                                            Notary Public

                                             My Commission Expires: July 6, 2003



</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99
<SEQUENCE>5
<FILENAME>ex99-3.txt
<DESCRIPTION>EXHIBIT 99.3
<TEXT>
<Page>

                                                             Exhibit 99.3



                    STATEMENT PURSUANT TO 18 U.S.C.'SS' 1350



         Pursuant to 18 U.S.C. 'SS' 1350, the undersigned certifies that, to
the best of my knowledge, the Quarterly Report on Form 10-Q for the period ended
June 30, 2002 of Quest Diagnostics Incorporated, as being filed with the
Securities and Exchange Commission concurrently herewith, fully complies with
the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of
1934 (15 U.S.C. 'SS' 78m or 78o(d)) and that the information contained in the
Quarterly Report fairly presents, in all material respects, the financial
condition and results of operations of Quest Diagnostics Incorporated.


Dated:   August 12, 2002                    /s/ Kenneth W. Freeman
                                            ------------------------------------
                                               Kenneth W. Freeman
                                               Chief Executive Officer


















</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99
<SEQUENCE>6
<FILENAME>ex99-4.txt
<DESCRIPTION>EXHIBIT 99.4
<TEXT>
<PAGE>


                                                             Exhibit 99.4






                    STATEMENT PURSUANT TO 18 U.S.C.'SS' 1350



         Pursuant to 18 U.S.C. 'SS' 1350, the undersigned certifies that, to
the best of my knowledge, the Quarterly Report on Form 10-Q for the period ended
June 30, 2002 of Quest Diagnostics Incorporated, as being filed with the
Securities and Exchange Commission concurrently herewith, fully complies with
the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of
1934 (15 U.S.C. 'SS' 78m or 78o(d)) and that the information contained in the
Quarterly Report fairly presents, in all material respects, the financial
condition and results of operations of Quest Diagnostics Incorporated.



Date:    August 12, 2002                    /s/ Robert A. Hagemann
                                            -----------------------------------
                                               Robert A. Hagemann
                                               Chief Financial Officer
























</TEXT>
</DOCUMENT>
</SUBMISSION>
