Contact us
We make every attempt to answer online inquiries as soon as possible. USDTL is an objective, third-party forensic toxicology laboratory and is not involved in the details of forensic cases; therefore, we are unable to verify any information related to cases. Due to obligations of confidentiality for the donor and forensic protocol, we are unable to answer questions or release information to parties not explicitly authorized.
If this request is time-sensitive, please call Client Services at 800.235.2367.
Find A Collection Site
Use our interactive map to quickly find a collection site near you. Simply enter your location or allow location access to see the nearest options. Click on a site marker for hours, directions, and contact details.

Ready to Partner with USDTL?
For over 25 years, USDTL has delivered accurate, reliable laboratory testing services across 200 locations nationwide. From hospitals to government agencies to employers, we partner with organizations that demand precision.

























