United States Drug Testing Laboratory

Introductory Video

Established in 1991 as a specialty drug testing facility, USDTL is a leader in the drug testing industry. Our laboratory has an aggressive research and development program and has made significant breakthroughs in the field of analytical toxicology by developing procedures to provide workplace and rehabilitation drug testing using hair and nail specimens. USDTL’s research activities are funded largely by agencies within the National Institutes of Health (NIH). We offer customized drug testing for a variety of clinical and research clients, including treatment centers, hospitals, reference laboratories, universities and court systems.

Our services go beyond providing alcohol and drug testing results. Businesses, physician health programs, and government agencies depend upon us for drug and alcohol monitoring. University research groups look to us to help meet their research needs. In all these areas, we provide complete analytical testing solutions.

Douglas Lewis, President and Scientific Director, and Joseph Jones, Vice President of Laboratory Operations, have over 40 years of combined experience in forensic toxicology and are available to answer questions regarding reported results. Sharing forensic toxicology knowledge is considered an essential part of USDTL client services.

USDTL is continually developing new methods to improve test panels.


Enriching and protecting lives.


We use the best science available to provide cutting edge tools for the analysis and

evaluation of exposure to alcohol, substances of abuse, and toxins.


USDTL advances the Gold Standard in Forensic Toxicology through the following:

Leadership: Radical innovation that enlightens people to re-think what is possible.

Integrity: Results that you can trust, based on solid science.

Innovation: Trailblazers in technology.

Quality: Valid, Accurate, and Dependable.

Collaboration: Strategic alliances optimizing each participant's strengths.