Donor Instructions

DOT urine drug testing

Welcome. Please read the following instructions carefully. Our staff will guide you through the collection process.

1. Check in

  • Present a valid form of identification when requested.
  • Provide any required paperwork or testing authorization.
  • Follow the collector’s instructions throughout the process.

2. Prepare for collection

  • Wash and dry your hands when instructed by the collector.
  • Do not wash your hands again until you have provided and handed over your specimen.
  • Do not bring personal belongings, bags, coats, or unnecessary items into the restroom. Follow the collector’s directions regarding permitted items.

3. Provide your urine specimen

  • You will receive a collection cup from the collector.
  • Proceed to the designated restroom and provide your urine specimen.
  • A DOT urine collection generally requires at least 45 mL (approximately 1.5 ounces).
  • Do not flush the toilet.
  • Do not add water or any other substance to the specimen.
  • Return the specimen directly to the collector as soon as you finish.

4. Specimen processing

  • The collector will check the specimen and complete the required documentation.
  • DOT collections require a split specimen, which means the collector will divide the urine into two specimen bottles.
  • You may be asked to initial the specimen bottle seals and complete the required paperwork.
  • Do not open, handle, or seal the specimen bottles unless specifically instructed by the collector.

Important reminders

  • Follow all instructions given by the collector.
  • Do not attempt to alter, substitute, dilute, or contaminate the specimen.
  • If you are unable to provide enough urine, inform the collector immediately. The collector will explain the applicable procedure.

DOT urine collections are conducted under U.S. DOT regulations — 49 CFR Part 40.

Thank you for your cooperation.

Ready to Get Tested?

Book a time that works for you — all testing is by appointment.

Appointments



Required for all services — call or request a time.

Address

15885 Main Street, Suite 150
Hesperia, CA 92345

Hours

Tue–Fri 9–5
Sat & Sun by appointment

Schedule a Test