A failed DOT drug or alcohol test is stressful, but what you do in the next two days can save you weeks. Here’s a clear checklist for the first 48 hours.
1. Stop all safety-sensitive work
You can’t perform any DOT safety-sensitive duty until you finish the return-to-duty process. Driving, flying, dispatching or maintaining covered equipment in the meantime is a serious violation that can cost you far more than the original test.
2. Get your paperwork together
- Any notice from your employer or Medical Review Officer (MRO)
- The date and type of test (random, pre-employment, post-accident, reasonable suspicion)
- Your employer’s Designated Employer Representative (DER) or C/TPA contact
- The list of qualified SAPs your employer gave you
3. Ask for your SAP list
Your employer must give you a list of qualified SAPs at no cost. If you’re still employed, check whether your employer will accept a SAP who isn’t on the list before you book.
4. Verify and contact a qualified SAP
Confirm the SAP has completed DOT qualification training and the exam, not just a professional license. Ask what the fee includes and how soon you can be seen. Here’s how to verify a SAP.
5. CDL drivers: log in to the Clearinghouse
If you hold a CDL or CLP, register in the FMCSA Clearinghouse and designate your SAP. Your state must downgrade your CDL within 60 days of FMCSA’s notice while your status is prohibited, so don’t wait. See the FMCSA steps.
6. Know your agency’s extra rules
- Pilots and medical certificate holders may also need FAA medical clearance.
- Credentialed mariners need a Medical Review Officer’s clearance and may face credential review.
- Engineers and conductors may face certification action.
What not to do
- Don’t pay anyone who promises to clear you in a day
- Don’t try to get a second SAP opinion to change a recommendation
- Don’t assume a state-legal marijuana prescription changes a DOT result
- Don’t ignore your employer or the Clearinghouse while you decide what to do
If you think the result is wrong
The Medical Review Officer reviews positive results before they’re reported, and you can ask the MRO about having your split specimen tested at a different lab within the required time frame. Talk to the MRO quickly if you want to pursue that.
Frequently asked questions
Will I lose my job?
That’s your employer’s decision. DOT rules require removal from safety-sensitive duty, not termination.
How soon can I see a SAP?
Our appointments may be available within 24–48 hours after intake review and payment.
Does a refusal count as a failed test?
Yes. A refusal is treated as a violation and requires the SAP process.
Take the first step within 48 hours.
Your first inquiry is free. Virtual DOT SAP evaluations throughout New York State, plus New Jersey, Georgia and Massachusetts, often within 24–48 hours after intake and payment.

