top of page

DOT Drug Testing Services

DOT-compliant urine and oral fluid specimen collection services for regulated employers and safety-sensitive positions.

What Is DOT Drug Testing?

Department of Transportation (DOT) drug testing is required for employees in safety-sensitive positions regulated by federal agencies. These tests follow strict procedures and must be conducted by trained professionals.

DOT Services We Provide

  • DOT Urine Drug Testing - 5 Panel

  • DOT Oral Fluid Collection - 5 Panel

  • Pre-Employment Testing

  • Random Testing

  • Post-Accident Testing

  • Reasonable Suspicion Testing

  • Return-to-Duty

  • Follow-Up Testing

Ready to schedule your DOT drug test?

IMG_5825_edited.jpg
Fleet Of Trucks

  • Keep your business moving

  • Built around your schedule

  • Professional

  • Compliant

  • Stress-free

​

Let Us Come To You - Book A Mobile Visit

Please complete the form and we will contact you shortly

WHAT DATE & TIME WOULD YOU PREFER TESTING TO BE COMPLETED?

© 2026 ZeeHelix Diagnostics LLC

3350 Shelby St. Suite 200 Ontario, CA 91764

Tel: 714-859-3266

bottom of page