FMCSA Clearinghouse
A federal online database that stores records of drug and alcohol violations for CDL drivers, required for employers to query before hiring and annually for all current CDL drivers.
Written by Rajat GuptaRajat GuptaEditor
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Last reviewed Aug 20, 2026Evaluating software in this category?
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Compare ELD Compliance software →What the Clearinghouse Records and Who Can Access It
The FMCSA Drug & Alcohol Clearinghouse launched on January 6, 2020, under 49 CFR Part 382, Subpart G. It is a secure, real-time online database maintained by FMCSA that contains records of violations of the DOT drug and alcohol testing program for CDL drivers. Violations recorded include: positive drug or alcohol test results (BAC 0.04 or greater), refusals to test (including adulterations and substitutions), actual knowledge violations (a driver operating while under the influence), and failed return-to-duty tests after a prior violation. Employers, Medical Review Officers (MROs), Substance Abuse Professionals (SAPs), consortia and third-party administrators (C/TPAs), and law enforcement can access the Clearinghouse, each with different query and reporting obligations.
Employer Query Requirements: Pre-Hire and Annual
Clearinghouse Query Requirements by Employer Type
| Query Type | When Required | Query Type Allowed | Driver Consent Required? |
|---|---|---|---|
| Pre-employment query | Before a CDL driver first performs safety-sensitive functions | Full query | Yes — electronic consent through Clearinghouse |
| Annual query | At least once per year for all currently employed CDL drivers | Limited query (full query if limited returns a hit) | Consent granted at hire covers annual limited queries |
| Post-violation follow-up | After a driver completes RTD process and returns to safety-sensitive duties | Full query — confirm RTD completion | Consent already on file |
| Owner-operators using a C/TPA | Same pre-employment and annual requirements apply | Full or limited as appropriate | Owner-operators consent to their own records |
The Return-to-Duty Process
A CDL driver with a Clearinghouse violation cannot simply wait out the violation — they must complete a mandatory return-to-duty (RTD) process before performing safety-sensitive functions again. The process requires: evaluation by a DOT-qualified Substance Abuse Professional (SAP), completion of any treatment or education program the SAP prescribes, a negative return-to-duty drug or alcohol test, and a follow-up testing plan administered by the SAP (minimum 6 unannounced tests in the first 12 months following return to duty, with testing continuing for up to 5 years). Until the RTD process is complete and recorded in the Clearinghouse, the driver's record shows as a 'prohibited' status and no employer can legally place them in a safety-sensitive position.
Operational Scenario: The Pre-Hire Query Miss
What happens when a carrier skips the pre-hire query
A small carrier in the Pacific Northwest hired a CDL driver without running a Clearinghouse query, relying instead on a verbal reference from a prior employer and a clean MVR. The driver had a positive cocaine test at a previous carrier 14 months earlier and had never initiated the return-to-duty process. The Clearinghouse showed him as 'prohibited.' Six weeks into employment, the carrier was selected for a compliance review. The investigator pulled driver qualification files and ran Clearinghouse queries on all current drivers. The prohibited driver was flagged immediately. FMCSA cited the carrier for employing a driver in a prohibited status and for failing to conduct the required pre-employment Clearinghouse query. The carrier received civil penalties of $9,000 and a Conditional safety rating. The driver was placed out of service on the spot.
- Register your company in the Clearinghouse at clearinghouse.fmcsa.dot.gov before hiring your first CDL driver — the system requires employer registration before queries can be run
- Obtain electronic consent from every CDL driver at hire — without consent, you cannot run a full pre-employment query
- Run full Clearinghouse queries on every CDL driver before their first safety-sensitive function, with no exceptions for drivers with long tenure at prior employers
- Document annual limited query results in each driver's qualification file, including the date of the query and whether it returned a hit requiring a full query
- If a driver's Clearinghouse record shows 'prohibited,' remove them from safety-sensitive functions immediately and do not reinstate until you receive written confirmation from the SAP that the RTD process is complete
- When using a C/TPA to manage your drug and alcohol testing program, confirm they have Clearinghouse reporting access and are submitting violation records — you remain the responsible employer if they fail to report
FMCSA Clearinghouse FAQ
Quick answers to the questions buyers usually ask once the category, software, or rollout details start getting more specific.
A
Violation records remain in the Clearinghouse for 5 years from the date of the violation determination, or 3 years after the driver completes the full return-to-duty process — whichever is later. A driver who completes RTD and the follow-up testing program will have their record updated to show 'not prohibited,' but the underlying violation record remains accessible to authorized queriers for the full retention period.
A
A refusal to provide consent for a pre-employment Clearinghouse query is treated as a refusal to test under 49 CFR 382.501 and is itself a Clearinghouse violation. The employer cannot hire the driver for a safety-sensitive position. For annual queries, drivers who granted consent at hire cannot later revoke that consent to block the annual limited query.
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