DOT Drug Testing

DOT Drug Testing

Silvur Lining Laboratories provides professional DOT drug testing specimen collection services for employers, owner-operators, transportation companies, municipalities, and other DOT-regulated organizations throughout North Carolina.



We support DOT testing programs including pre-employment, random, post-accident, reasonable suspicion, return-to-duty, and follow-up testing in accordance with applicable federal collection procedures.


Appointments are recommended to ensure prompt service. Please bring your employer authorization forms and a valid government-issued photo ID at the time of your appointment.

Need Reliable Testing? Let’s Talk

Send your questions or request an appointment—responses are quick, instructions are clear, and confidentiality is always a priority.