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When you fail a DOT drug or alcohol test, the violation goes into the federal Clearinghouse immediately. Here is how the Clearinghouse works, how prohibited status gets lifted, and exactly what the return-to-duty process requires.
If you are in prohibited status: You cannot drive a CMV or perform any safety-sensitive function until the Clearinghouse shows your RTD is complete. The prohibition does not lift automatically — you must complete the SAP process and pass a return-to-duty test.
The FMCSA Drug and Alcohol Clearinghouse is a secure federal database that went live on January 6, 2020. It records drug and alcohol program violations for CDL holders and tracks the return-to-duty process in real time. Every employer is required to query it before hiring a CDL driver and at least once per year for existing drivers.
Before the Clearinghouse existed, a driver with a positive test could simply move to a new employer and get behind the wheel again without disclosing the violation. The Clearinghouse closed that loophole — violations and prohibited status follow the driver's CDL number across every employer in the system.
| Event | Who Reports | Deadline |
|---|---|---|
| Verified positive drug test | MRO | 2 business days |
| Alcohol test ≥ 0.04 BAC | Employer / C/TPA | 3 business days |
| Refusal to test | MRO or employer | 2–3 business days |
| Actual knowledge violation | Employer | 3 business days |
| SAP initial evaluation complete | SAP | At completion |
| SAP follow-up testing plan | SAP | At completion |
| Return-to-duty test (negative) | MRO | 2 business days |
| Follow-up test completion | MRO | 2 business days |
Negative test results are not reported to the Clearinghouse. Only violations and RTD milestones appear.
When a violation is reported, the Clearinghouse automatically places you in prohibited status. Your status then updates at each stage of the return-to-duty process:
The MRO or employer reports the violation. The Clearinghouse immediately updates your status to "prohibited." Any employer querying the Clearinghouse will see this status and cannot put you to work in a safety-sensitive role.
When you complete your initial SAP evaluation, the SAP reports it to the Clearinghouse. Your status updates to show that the SAP process has begun, but you remain prohibited.
The SAP reports that you have completed the prescribed education or treatment program. You are still prohibited at this stage — you cannot drive until after the RTD test.
You take a directly observed return-to-duty drug or alcohol test. The MRO reports a negative result to the Clearinghouse within 2 business days. Your prohibited status is lifted. You may now return to safety-sensitive duties.
The SAP reports the follow-up testing plan — a minimum of 6 unannounced tests in the first 12 months, potentially extended up to 5 years. Follow-up tests are tracked in the Clearinghouse as they are completed.
There are two types of Clearinghouse queries employers can run:
If a limited query shows "prohibited," the employer must run a full query (with your consent) before making any employment decision based on that result.
You can see your own record at any time. Log in at clearinghouse.fmcsa.dot.gov with your FMCSA Portal account. You can view your full violation history, track where you are in the RTD process, and manage consent for employer queries.
No. A violation stays in the Clearinghouse permanently — there is no expiration or removal process for verified violations. However, what changes is your status:
Employers can see that you had a violation and that you completed the RTD process. Most carriers treat a resolved violation differently than an unresolved one. Completing the process promptly is in your interest both for employment and for compliance.
The FMCSA Drug and Alcohol Clearinghouse is a secure federal database that records drug and alcohol program violations for CDL holders. Employers, C/TPAs, MROs, and SAPs report violations and return-to-duty completions directly into the Clearinghouse. Employers are required to query it before hiring a CDL driver and annually for current drivers.
Verified positive drug test results, alcohol test results of 0.04 BAC or higher, refusals to test (including adulterated or substituted specimens), actual knowledge violations, and return-to-duty and follow-up testing completions. Negative results are not reported.
A violation is not removed — it stays in the record permanently. However, your prohibited status is lifted when the RTD process is completed: the SAP reports completion of education or treatment, you pass a return-to-duty drug or alcohol test, and the result is reported to the Clearinghouse. After that, employers can see that the violation was resolved.
Prohibited status remains active until you complete the full return-to-duty process: SAP evaluation, prescribed education or treatment, and a negative return-to-duty test. There is no time limit — the prohibition does not expire automatically.
No. Once a violation is reported to the Clearinghouse, you are in prohibited status and cannot perform any safety-sensitive function — including driving a CMV. You remain prohibited until the Clearinghouse shows RTD completion with a negative return-to-duty test.
A limited query tells the employer only whether the driver has a prohibited status — yes or no. A full query gives the employer access to the actual violation records, but requires the driver's electronic consent. Employers must run at least one full query before hiring a CDL driver.
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