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): February 28, 2003 Quest Diagnostics Incorporated (Exact name of Registrant as specified in its charter) Delaware 1-12215 16-1387862 (State or other jurisdiction Commission File Number (I.R.S. Employer of incorporation) Identification Number) ----------------------------- 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 February 27, 2003, 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 Section 906 of the Sarbanes-Oxley Act of 2002. 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: February 28, 2003 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 Pursuant to 18. U.S.C. 'SS' 1350 of Chief Executive Officer dated February 27, 2003 Exhibit 99.2 Statement Pursuant to 18. U.S.C. 'SS' 1350 of Chief Financial Officer dated February 27, 2003 STATEMENT OF DIFFERENCES ------------------------ The section symbol shall be expressed as..................................'SS'