DOT Authority#

Random Testing Instructions


Random Testing FAQs

Get quick answers to common questions about Random Selections, Collection Sites, QPassports and Re-Selections.


Drivers must Get Tested Immediately when Notified

  • Order the Drug or Alcohol Test and confirm the Collection Site is open
  • Notify the Driver to Get Tested Immediately
  • Failure to Get Tested Immediately is a Refusal-to-Test
  • Delaying Testing may increase legal liability if an accident occurs before Testing is completed

Order Random Drug Tests

Order DOT Drug Tests online through your Express Labs Account or use the Quest Paper Forms we provide.  Once enrolled, only DOT Drug Tests ordered through Express Labs or completed using Express Labs Quest Paper Forms are accepted.

  1. Log in to your Express Labs Account and click Order Drug Tests
  2. Select Random for the Reason for Testing
  3. Select a Collection Site then click Complete Order
  4. Your QPassport is available immediately in Tests Ordered & QPassports on the left side of your Account and is also emailed within about 15 minutes
  5. Bring QPassport (printed or on phone) with photo ID to the Collection Site listed on the QPassport
  6. Call the Collection Site to confirm they are open and accepting walk-ins

Order Random Alcohol Tests

Order DOT Breath Alcohol Tests online through your Express Labs Account or use any Collection Site and email the results to Express Labs.

  1. Log in to your Express Labs Account and click Order Alcohol Tests
  2. Select Random for the Reason for Testing
  3. Select a Collection Site then click Complete Order
  4. Your QPassport is available immediately in Tests Ordered & QPassports on the left side of your Account and is also emailed within about 15 minutes
  5. Bring QPassport (printed or on phone) with photo ID to the Collection Site listed on the QPassport
  6. Call the Collection Site to confirm they are open and accepting walk-ins

Deactivating Drivers

DOT requires Employers to Deactivate Drivers Immediately who are Terminated or Unavailable for Random Testing.

  1. Log in to your Express Labs account
  2. Click Manage Drivers
  3. Locate the Driver
  4. Select Deactivate Driver
  5. Click Save Changes
  6. Click Continue to confirm

Re-Selections

If a Selected Driver is Deactivated, another Driver is automatically Re-Selected during the current Selection Period.  This may result in a Driver being selected more than once in the same quarter. 

  • DOT only allows Re-Selections during the Selection Period.
  • Drivers who were Selected and then Deactivated can only be Reactivated after completing a new Pre-Employment DOT Drug Test.

Random Testing Program


Notification Process

Random Selections are emailed and posted in your Express Labs account in January, April, July and October.  If no email is received, check your account at the beginning of February, May, August, and November.

  • Your Express Labs account is the Official Notification for Random Selections
  • Email Notifications and Reminders do not change the original Random Selection Date

Random Testing Pool

DOT requires Drivers to be added to the Random Pool immediately when our MRO reports negative Pre-Employment DOT Drug Test results and are immediately eligible to be selected for random testing.

  • Drivers may be selected immediately after a negative Pre-Employment DOT Drug Test is reported

Random Selections

Every Active Driver in the Random Pool has an equal chance of being selected for Drug or Alcohol Testing each quarter.

  • Drivers may be selected 0–4 times per year
  • Previous selections do not affect future selections
  • Annual Testing Rates: Minimum 50% Drug • 10% Alcohol

Random Selection Frequency

Every Active Driver has an equal chance of being selected each quarter.

  • Random Selections are computer-generated
  • Some Drivers may be selected more often than others, while others may not be selected every year

Refusal-to-Test

  • Drivers who do not Get Tested Immediately when Notified are considered a Refusal-to-Test, which has the same consequences as a Positive Result

Incomplete Random Selections

Failure to comply with DOT Regulation 49 CFR §382.305 may result in Civil Penalties and removal from the Express Labs Consortium.

  • Employers must ensure required Random Testing is completed within the Selection Period
  • Owner-Operators must Get Tested Immediately after notification
  • 2025 MIS Report

Express Labs FMCSA Random Drug & Alcohol Consortium
Random Testing | Updated 2026