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
                        JUNE 20, 2000
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              (Date of earliest event reported)


         LABORATORY CORPORATION OF AMERICA HOLDINGS
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   (Exact name of registrant as specified in its charter)


   DELAWARE                1-11353             13-3757370
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(State or other         (Commission         (IRS Employer
jurisdiction of         File Number)         Identification
incorporation)                                    Number)


   358 SOUTH MAIN STREET, BURLINGTON, NORTH CAROLINA 27215
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          (Address of principal executive offices)

                        336-229-1127
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    (Registrant's telephone number, including area code)


ITEM 5. OTHER EVENTS On June 20, 2000, Laboratory Corporation of America- Registered Trademark- Holdings (LabCorp-Registered Trademark- ) announced that it has entered into a definitive agreement with privately-held National Genetics Institute, Inc. (NGI) to acquire all of the stock of NGI. Established in 1991, Los Angeles-based NGI is a leading national provider of hepatitis C (HCV) testing using innovative molecular diagnostic technology. Its customers include physicians, drug companies performing clinical trials, and plasma product companies. Terms of the definitive agreement were not disclosed. The transaction, which is expected to be completed in July, is subject to certain, normal closing conditions. ITEM 7. FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS (c) Exhibit 20 Press release of the Company dated June 20, 2000.

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, General Counsel, Secretary and Compliance Officer Date: June 21, 2000


Laboratory Corporation of America-Registered Trademark- Holdings
358 South Main Street
Burlington, NC   27215
Telephone:  336-584-5171

FOR IMMEDIATE RELEASE
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Contact:  336-436-4855                  Shareholder Direct: 800-LAB-0401
          Pamela Sherry                                     www.labcorp.com



LABORATORY CORPORATION OF AMERICA-REGISTERED TRADEMARK- ANNOUNCES
  DEFINITIVE AGREEMENT TO ACQUIRE NATIONAL GENETICS INSTITUTE

Burlington, NC, June 20, 2000 - Laboratory Corporation of
America-Registered Trademark- Holdings (LabCorp-Registered
Trademark-) (NYSE: LH) today announced that it has entered into
a definitive agreement with privately-held National Genetics
Institute, Inc. (NGI) to acquire all of the stock of NGI.
Established in 1991, Los Angeles-based NGI is a leading national
provider of hepatitis C (HCV) testing using innovative molecular
diagnostic technology.   Its customers include physicians, drug
companies performing clinical trials, and plasma product
companies.  Terms of the definitive agreement were not disclosed.
The transaction, which is expected to be completed in July, is
subject to certain, normal closing conditions.

The acquisition of NGI gives LabCorp access to NGI's ultra-
sensitive tools to assess HCV disease progress at levels
previously undetectable, and furthers LabCorp's leadership
position in infectious disease and HCV testing.  It also creates
a LabCorp esoteric facility on the West Coast, enhancing
LabCorp's standing as the most comprehensive molecular diagnostic
and specialty testing network in the United States, offering
patients and physicians more rapid test turnaround and
unparalleled access to the latest diagnostic tools.

HCV is one of the most common, chronic viral infections in the
US, and is considered the cause of approximately 25 percent of
all US liver transplants.  Historically, HCV has been
underdiagnosed, and few therapies for treatment have been
available. With more than four million persons in the US
infected, and more than 30,000 new cases each year, identifying
and treating HCV has significant health care cost and quality-of-life
implications.  With the advent of new therapies and treatment
options, testing to diagnose and monitor the disease is a
critical step in the management of HCV.

"The acquisition of NGI is an important step in the continued implementation of our strategy to differentiate LabCorp by offering critical, state-of-the-art laboratory testing services," said Thomas P. Mac Mahon, chairman and chief executive officer of LabCorp. "We believe infectious disease testing, and specifically hepatitis C testing employing molecular diagnostics, will continue to be one of the fastest growing areas of laboratory testing. NGI's superior management team, which has recognized scientific expertise in this segment, will be an excellent addition to LabCorp's established leadership position in infectious disease. Additionally, the acquisition provides us with the opportunity to establish a West Coast esoteric facility and expand LabCorp's current innovative testing methods, particularly HIV viral load testing through NGI." The Company noted that each of the above forward-looking statements is subject to change based on various important factors, including without limitation, competitive actions in the marketplace and adverse actions of governmental and other third- party payors. Further information on potential factors that could affect the Company's financial results is included in the Company's Form 10-K for the year ended December 31, 1999 and subsequent SEC filings. Laboratory Corporation of America-Registered Trademark- Holdings (LabCorp-Registered Trademark-) is a national clinical laboratory with annual revenues of $1.7 billion in 1999. With 18,000 employees and over 100,000 clients nationwide, the company offers more than 2,000 clinical tests ranging from simple blood analyses to sophisticated molecular diagnostics. LabCorp leverages its expertise in innovative clinical testing technology with three Centers of Excellence. The Center for Molecular Biology and Pathology, in Research Triangle Park (RTP), North Carolina, develops applications for polymerase chain reaction (PCR) technology. Its Center for Occupational Testing in RTP is the world's largest substance abuse testing facility, and the Center for Esoteric Testing in Burlington, North Carolina, performs the largest volume of specialty testing in the network. LabCorp's clients include physicians, state and federal government, managed care organizations, hospitals, clinics, pharmaceutical and Fortune 1000 companies, and other clinical laboratories. ###