Return-to-Duty Drug Test for CDL Drivers
Finished your SAP program? We help CDL drivers complete their Return-to-Duty process correctly so they can get back to work fast — with full DOT compliance and Clearinghouse support.
An RTD Test Is Not a Regular Drug Test
Many CDL drivers lose precious time — or lose their jobs entirely — by walking into a random clinic and thinking any drug test will do. A DOT Return-to-Duty test is a strictly regulated process with specific requirements.
Must Be Observed
RTD tests require direct observation by a trained collector — standard collections are not accepted.
Must Be Program-Linked
The test must be tied to a DOT drug testing program or consortium — it cannot be a standalone test.
Clearinghouse Reporting Required
Results must be properly reported to the FMCSA Drug & Alcohol Clearinghouse or your violation won't be cleared.
We Handle the Entire Process
TAF Diagnostic Services is your single point of contact for everything RTD — from verifying your eligibility to completing the observed test and reporting to the Clearinghouse.
- Eligibility Verification
- Observed Collection
- MRO Review & Processing
- Clearinghouse Reporting
- Follow-Up Testing Support
Everything You Need to Return to Work
We offer end-to-end DOT compliance services so CDL drivers can complete the Return-to-Duty process without delays, errors, or rejected tests.
Clearinghouse Verification
We verify your status in the FMCSA Drug & Alcohol Clearinghouse to confirm RTD eligibility before testing.
Consortium Enrollment
Owner-operators and self-employed drivers can enroll in our DOT consortium to satisfy FMCSA random testing requirements.
Observed RTD Testing
Our certified collectors perform the required direct-observation collection in full compliance with 49 CFR Part 40.
MRO Processing
A licensed Medical Review Officer reviews and certifies your results, ensuring full regulatory compliance.
Follow-Up Testing Support
We manage your FMCSA-mandated follow-up testing schedule so you never miss a test and stay on the road.
Compliance Management
From documentation to Clearinghouse reporting, we handle the paperwork so you can focus on driving.
How the RTD Process Works
We've streamlined the Return-to-Duty process to get you back on the road as quickly as possible — without the guesswork.
Submit Your Information
Fill out our quick intake form or give us a call. We'll collect the info needed to start your RTD process right away.
Verify RTD Eligibility
We check the FMCSA Clearinghouse to confirm you've completed your SAP program and are eligible for Return-to-Duty testing.
Complete Observed Test
Our certified collector performs the required observed urine specimen collection in a DOT-compliant, secure environment.
Return to Work
Once your MRO confirms a negative result and the Clearinghouse is updated, you're cleared to get back behind the wheel.
Not sure what you need to bring? Download our Free RTD Checklist.
We Help All CDL Drivers Get Back on the Road
No matter your situation, if you need a DOT Return-to-Duty drug test in West Texas, TAF Diagnostic Services is here for you.
Owner-Operators
Running your own rig? We handle consortium enrollment and RTD testing so you stay compliant and keep your authority.
Unemployed CDL Drivers
You don't need a current employer to get your RTD test. We work directly with drivers to clear their Clearinghouse violations.
Drivers Completing SAP
Just finished your Substance Abuse Professional program? We're the next step — getting your observed RTD test done right.
Drivers After DOT Violations
Whether it's a positive test, refusal, or other DOT drug/alcohol violation, we help you navigate the Return-to-Duty process correctly.
Serving Midland & Odessa, Texas
Conveniently located to serve CDL drivers throughout the Permian Basin and surrounding areas.
Trusted by Texas CDL Drivers
Hear from drivers who successfully completed their Return-to-Duty process and got back to work.
"After finishing my SAP program, I was stressed about the RTD process. TAF Diagnostic Services got me in the same day, explained everything, and had my results in the Clearinghouse fast. I'm back on the road because of them."
Mike T.
Owner Operator
"Very professional and discreet. The observed test process can be uncomfortable, but the staff here handled it strictly by the book while treating me with respect. Highly recommend if you need to get your DOT compliance sorted in Midland."
David R.
Company Driver
"I didn't know how to navigate the Clearinghouse to show I was eligible. They helped me verify my status and got my Return-to-Duty test done quickly. Don't go anywhere else, these guys actually know the FMCSA rules."
Sarah L.
CDL Driver
Am I Ready for My RTD Test?
Answer 4 quick questions to find out if you're eligible to complete your Return-to-Duty drug test today.
Quick 4-Question Eligibility Check
This free tool helps you understand where you are in the RTD process and what your next step should be. Takes less than a minute.
RTD & Compliance Blog
Helpful articles and updates for CDL drivers navigating the Return-to-Duty process and FMCSA regulations.
June 10, 2026
How to Navigate the FMCSA Clearinghouse Return-to-Duty Process
A step-by-step guide for CDL drivers on what to expect when checking your status and completing the required documentation.
May 28, 2026
What Happens During an Observed DOT Drug Test?
Everything you need to know about the mandatory observed collection process for DOT Return-to-Duty testing.
May 15, 2026
SAP Completion: The Next Steps for CDL Drivers
You finished your SAP evaluation and education. Here is how to find a testing center and get back behind the wheel quickly.
Frequently Asked Questions
Have questions about the RTD process? We've answered the most common ones below.
Yes. You do not need to be currently employed to complete your Return-to-Duty test. Many drivers come to us between jobs. We work with you directly and enroll you in a consortium if needed so the process is fully DOT-compliant regardless of your employment status.
Start Your Return-to-Duty Process Today
Fill out the form and a member of our team will contact you within one business day to discuss your RTD process, verify eligibility, and schedule your observed test.
Prefer to call directly?
Mon–Sat · Fast Response
Ready to Get Back on the Road?
Don't wait. Every day off the road costs you money. Call or submit your info now and let TAF Diagnostic Services get you back behind the wheel — fast, compliant, and done right.