UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 May 16, 2007 ------------------- (Date of earliest event reported) LABORATORY CORPORATION OF AMERICA HOLDINGS ------------------------------------------ (Exact name of registrant as specified in its charter) DELAWARE 1-11353 13-3757370 -------------- ----------- -------------- (State or Other (Commission (IRS Employer Jurisdiction of File Number) Identification Incorporation) Number) 358 SOUTH MAIN STREET BURLINGTON, NORTH CAROLINA 27215 --------------------------------------- ------- (Address of principal executive offices) (Zip Code) 336-229-1127 ------------ (Registrant's telephone number, including area code) N/A --------------------------------------- (Former name or former address, if changed since last report.) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: [ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) [ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) [ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) [ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) ITEM 7.01. Regulation FD Disclosure On May 16, 2007 - Laboratory Corporation of America(R) Holdings (LabCorp(R)) announced today that it has entered into an agreement with U.K. based Intema Ltd. to license its technology for combining first- and second-trimester Down syndrome screening test results to assess the risk of Down syndrome. The press release dated May 16, 2007 is attached herewith as Exhibit 99.1. Exhibits 99.1 Press Release dated May 16, 2007 SIGNATURES Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. LABORATORY CORPORATION OF AMERICA HOLDINGS ------------------------------------------ (Registrant) By:/s/ BRADFORD T. SMITH -------------------------------------- Bradford T. Smith Executive Vice President and Secretary Date: May 17, 2007