Understand Clearinghouse records, employer queries, prohibited status, CDL downgrades, return-to-duty steps, consent, record corrections, and common fraud risks.
What the FMCSA Clearinghouse is
The Drug and Alcohol Clearinghouse is a secure federal database that gives authorized employers, FMCSA, State Driver Licensing Agencies, and enforcement personnel real-time information about drug and alcohol program violations involving CDL and commercial learner's permit holders. It contains covered violations under 49 CFR Part 382, including certain positive test results, alcohol results, refusals, and actual-knowledge reports, along with required return-to-duty milestones.
Who is affected
The Clearinghouse applies to CDL drivers operating commercial motor vehicles on public roads and to employers subject to FMCSA drug and alcohol testing requirements. This includes interstate and intrastate motor carriers, passenger and school-bus operations, municipal fleets, construction operations, and other covered employers. Owner-operators have both driver and employer responsibilities and generally must designate a consortium or third-party administrator for required testing-program functions.
Do CDL drivers need an account?
A driver is not required to register merely for a record to exist. Registration is needed to view the driver's own record, provide electronic consent for a full employer query, and designate a Substance Abuse Professional during the return-to-duty process. Because every pre-employment query is a full query, setting up the account and current contact information before a job change can prevent an avoidable hiring delay.
Full queries, limited queries, and consent
Employers must conduct a full Clearinghouse query as part of the pre-employment investigation and at least an annual query for each covered current driver. A full query reveals detailed information and requires the driver's specific electronic consent in the Clearinghouse. A limited query only indicates whether information exists and uses general consent obtained outside the system. If a limited query indicates new information, the employer must complete a full query within the required timeframe.
What a prohibited status means
A prohibited status means the driver may not perform DOT safety-sensitive functions, including operating a covered commercial motor vehicle, until the applicable return-to-duty requirements are completed. An employer must not dispatch or permit the driver to operate based on a promise that the issue will be fixed later. The driver should review the record, follow legitimate instructions, and avoid anyone offering to remove a violation without the required process.
How Clearinghouse II affects the CDL itself
Since November 18, 2024, State Driver Licensing Agencies must use Clearinghouse status when issuing, renewing, upgrading, or transferring a CDL or CLP and must remove commercial driving privileges from a driver in prohibited status. The result is a CDL or CLP downgrade until the driver changes to not prohibited through the return-to-duty process. The exact reinstatement transaction, documents, and fees are handled by the state licensing agency.
Return-to-duty step 1: choose a qualified SAP
A driver with a violation begins the return-to-duty process by selecting a qualified Substance Abuse Professional. The driver designates the SAP through the Clearinghouse, and the SAP records the date of the initial assessment. Verify the professional's credentials and identity before sharing personal information or paying. The SAP evaluates the driver and determines the education or treatment required; neither an employer nor an online advertiser can replace that professional judgment.
Return-to-duty step 2: complete the SAP requirements
The driver must successfully comply with the education and treatment plan prescribed by the SAP and return for the required follow-up evaluation. When the SAP determines the driver is eligible for return-to-duty testing, the SAP reports that date in the Clearinghouse. Eligibility for the test is not the same as being cleared to drive. The driver remains prohibited until the required negative return-to-duty test result is reported.
Return-to-duty step 3: obtain and record a negative test
A current or prospective employer subject to Part 382 normally directs the driver to take the return-to-duty test and reports the negative result. FMCSA also describes a limited process for a driver without such an employer to register as an owner-operator and designate a consortium or third-party administrator for the purpose of completing the test and reporting the negative result. A driver should follow the official instructions carefully and should not apply for a USDOT number solely to use that option.
Return-to-duty step 4: follow-up testing
After a negative return-to-duty result changes the status to not prohibited, the driver may return to covered safety-sensitive work when otherwise qualified. The employer must then carry out the unannounced follow-up testing plan prescribed by the SAP. The detailed plan is not stored in the Clearinghouse, but employers have responsibilities for obtaining and administering an unfinished plan and for reporting its successful completion.
How long records remain available
FMCSA states that violation records remain available for release to employers for five years from the violation determination or until the return-to-duty process and follow-up testing plan are successfully completed, whichever is later. A status change does not necessarily erase the history immediately. Drivers should understand the difference between becoming not prohibited, completing the follow-up plan, and the period during which a record remains available.
How to review or challenge incorrect information
A registered driver can view the Clearinghouse record electronically at no cost. FMCSA provides a Privacy Act process for requesting correction of inaccurate information, and specific documentation may be required. Do not ignore an entry because it appears mistaken, and do not create duplicate accounts to work around it. Preserve notices, test documentation, employer communications, and proof supporting a correction request.
Protect your CDL information from scams
FMCSA warned in January 2026 that scammers were soliciting CDL numbers, dates of birth, names, and payments while claiming they could fix Clearinghouse records or report negative return-to-duty tests. Do not share personally identifiable information unless the recipient's identity and legitimate role are verified. A real return-to-duty case requires the prescribed SAP, testing, and reporting steps. Capture suspicious messages and report them to the FMCSA Clearinghouse Team.
A practical Clearinghouse checklist
Create or update the account before applying for work, use an email and phone number you control, respond promptly to legitimate full-query consent requests, and review your record periodically. If prohibited, stop safety-sensitive work, verify the violation, select a qualified SAP, complete every requirement, confirm the negative return-to-duty result, and coordinate CDL reinstatement with the state. Keep records securely and use only official Clearinghouse resources for account or compliance instructions.
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Official sources
FMCSA Drug and Alcohol Clearinghouse overviewFMCSA Clearinghouse FAQs for CDL driversFMCSA warning: protect CDL information from fraudCDL Truck Pro provides educational information. Confirm licensing, safety, tax, and regulatory requirements through current official sources and qualified professionals.