Urine Drug Testing

Labcorp is an industry-leading provider of urine drug testing services.

Our Substance Abuse and Mental health Services Administration (SAMHSA)1-certified laboratories conduct urine drug analyses in accordance with Department of Health and Human Services2 and Department of Transportation3 requirements. Testing of nonregulated specimens is conducted using comparable stringent protocols.

Our strategically located laboratories offer a full range of testing services and provide prompt turnaround times nationwide. Uniform laboratory processes and a single computer platform provide standardized reporting regardless of testing location. 

Standard urine drug testing panels range from five to 10 drugs. Specimen validity testing is available to detect adulterants or specimen substitution resulting from a donor’s attempts to mask drug use. Expanded profiles for medical professional monitoring are also available.

Testing Lab Locations

SAMHSA-Certified Laboratories

The Labcorp occupational testing services laboratory network consists of the following SAMHSA-certified laboratories.

Laboratory Corporation of America Holdings
7207 N. Gessner Road
Houston, TX 77040
713-856-8288 / 800-800-2387

Laboratory Corporation of America Holdings
69 First Avenue
Raritan, NJ 08869
908-526-2400 / 800-437-4986

Laboratory Corporation of America Holdings
1904 TW Alexander Drive
Research Triangle Park, NC 27709
919-572-6900 / 800-833-3984

Laboratory Corporation of America Holdings
1120 Stateline Road West
Southaven, MS 38671
866-827-8042 / 800-233-6339

Labcorp Occupational Testing Services Administrative Headquarters 

Laboratory Corporation of America Holdings
500 Perimeter Park Drive, Suite C
PO Box 1280
Morrisville, NC 27560
919-481-5200 / 800-833-3984

SAMHSA-Certified Laboratory Addresses

The Drugs of Abuse Reference Guide provides common drugs of abuse that may be included in a urine drug screening panel. Labcorp encourages the use of an independent medical review officer (MRO) to review all non-negative test results. Information contained in the Drugs of Abuse Reference Guide is to be used as general guidelines only. Many variables may affect duration of detectability, such as drug metabolism and half-life, subject's physical condition, fluid balance and state of hydration, and route and frequency of ingestion.

To set up a urine drug testing program, contact Labcorp sales.


  1. Substance Abuse and Mental Health Services Administration (certified lab list)
  2. Substance Abuse and Mental Health Services Administration (drug-free workplace programs)
  3. Department of Transportation (drug and alcohol testing)