Return to Duty Testing
RTD & DOT Services for Truckers | Drug & Alcohol Testing
Ensuring you’re compliant, prepared, and supported at every step of your return to driving journey.

About Us
At CoviLab, we’re committed to helping truckers and CDL holders get back on the road with confidence. Our Return to Duty (RTD) program is designed to guide drivers through every step of the DOT compliance process after a drug or alcohol violation.
We’re fast, professional, and thorough, making sure your SAP evaluations, follow-ups, and testing are handled with the urgency and care you deserve.
Drug and Alcohol Testing Services for Truckdrivers

SAP Evaluation
Connect with a qualified Substance Abuse Professional (SAP) to begin your return-to-duty process.

Treatment Recommendations
Get guidance and resources tailored to your evaluation to ensure you meet DOT expectations.

Follow-Up Testing
Once your treatment is complete, we provide required testing to finalize your eligibility to return to duty.

Clearinghouse Compliance
We handle the digital paperwork and uploads to the FMCSA Clearinghouse to clear your record and get you rolling again.
Why Choose us
Certified SAP Guidance
DOT Compliant Process
Fast, Accurate Testing
No Unnecessary Delays - Quick Turnaround Time
Personalized Support
End-to-End RTD Coverage
What Our Clients Say
FAQs
Where is CoviLab located?
We’re conveniently located at 325 E 9th St, Charlotte, North Carolina 28202.
How do I begin the RTD process?
Simply visit covilabcharlotte.com or call us to schedule your SAP evaluation. We’ll guide you through every step.
What does the RTD process involve?
The Return to Duty process includes an SAP evaluation, treatment (if required), and follow-up testing. Once all steps are complete, your return to duty status will be cleared with the FMCSA.
How long does the RTD process take?
The length depends on your treatment plan and testing results, but we work to help you finish quickly and efficiently.