What Happens When Your DOT Drug Test Takes Longer Than 3 to 5 Days? (And What to Do If It’s Positive)

For many CDL drivers, waiting for DOT drug test results can be stressful. Typically, the results come back within 3 to 5 business days, but what happens when they don’t?

At GetOutOfProhibited.com, we specialize in helping drivers navigate this uncertain process — especially if you’ve received a violation in the FMCSA Clearinghouse.

Below is a detailed breakdown of what delays might mean, your rights as a driver, and what steps to take if your test is flagged or comes back positive.

Why Your DOT Drug Test Might Be Delayed

If it's been longer than 5 business days, here are a few common reasons why your DOT drug test results haven’t returned:

• Specimen issues: Your sample may have been lost in transit, or there may be a fatal or correctable flaw with the test.

• Lab error: Mistakes made by the lab could result in your test being canceled, requiring you to provide a new specimen.

• Prescription verification: If you’re taking a prescription medication, labs may need additional time to verify with your doctor.

• Positive results: A positive test triggers multiple verification steps and can extend the process by several days.

What Happens If the Test Is Canceled?

If there’s an issue, the lab will cancel the test, and the company or medical review officer (MRO) will ask you to submit another specimen. It's crucial that you respond quickly. Failing to go back for retesting may result in a refusal, which is treated the same as a positive test.

⚠️ Important: Always follow directions exactly as given. Not complying may lead to a violation being reported in the Clearinghouse.

What If the Test Is Positive?

If the lab confirms a positive drug test, here’s what happens:

1. Your company and the Clearinghouse are notified.

2. You’ll receive a call from the MRO asking whether the test is accurate.

3. You have the right to request that your sample be tested at a different lab (at your own expense).

If it’s verified again as positive, you will officially receive a violation in the Clearinghouse.

What’s Next? The Return-to-Duty Process

Once a violation is reported, you must complete the FMCSA Return-to-Duty process. That includes:

• Seeing a Substance Abuse Professional (SAP)

• Completing education and/or treatment

• Taking and passing a Return-to-Duty drug test

• Following a prescribed follow-up testing plan

Depending on your state, you may have 30 to 60 days to complete these steps before your CDL is downgraded.

We Can Help

At GetOutOfProhibited.com, we help drivers through Step 5 of the Return-to-Duty process and beyond. We also provide SAP referrals and answer questions about violations, testing delays, and regaining your CDL.

Whether you’re looking for help navigating the DOT drug testing process or trying to clear a violation, we’re here to support you.

📞 Call us directly: 832-384-5689🌐 Visit: GetOutOfProhibited.com