The Clearinghouse exists so that a failed drug test, a refusal or a 0.04 alcohol result at one carrier follows the driver to the next one. Medical review officers, employers and substance abuse professionals report violations and return-to-duty steps into one database, and every employer has to check it before putting a driver behind the wheel and again each year. Owner-operators sit on both sides: they are the employer and the driver, so the rule makes them designate a third-party administrator to do the reporting they cannot do on themselves. Since November 2024 the states are wired in too, and a prohibited driver has the commercial privilege removed from his license. Underwriters know all of this, which is why the drug and alcohol questions on a trucking application are not filler.
What it is and who has to register
The Clearinghouse is FMCSA’s online database of drug and alcohol program violations by CDL and CLP holders, open to employers, FMCSA, State Driver Licensing Agencies and state law enforcement. The rules are in 49 CFR Part 382, Subpart G. It holds only violations that occurred on or after January 6, 2020: verified positive, adulterated or substituted drug tests, alcohol tests at 0.04 or higher, refusals, an employer’s actual knowledge of use, and return-to-duty status.
- Employers and service agents register first: motor carriers, consortia/third-party administrators (C/TPAs), medical review officers (MROs) and substance abuse professionals (SAPs).
- Drivers are not required to register, but a driver needs an account to give the electronic consent a full query requires and to see his own record, at no cost.
- Owner-operators must designate a C/TPA to report their own violations; using a C/TPA only for random selections does not count. Under your own USDOT number you register as an employer; under another carrier’s, as a driver.
Pre-employment and annual queries
Before a driver performs any safety-sensitive function for you, you run a pre-employment query, which must be a full query: it releases the driver’s record and needs his electronic consent through the Clearinghouse. After that you query every driver subject to testing at least once a year. The annual check can be a limited query, which only says whether anything is on file; consent for limited queries can last more than a year. A hit on a limited query gives you 24 hours to run the full query.
A driver who refuses consent may not perform safety-sensitive functions for you. Keep each query and result for three years. FMCSA notifies you of anything entered about that driver in the 30 days after your query. It charges a fee per query, never a driver to see his own record.
What gets reported, by whom, and how fast
49 CFR 382.705 sets the clocks. MROs report verified positive, adulterated or substituted results and the refusals they determine within two business days. Employers report by the close of the third business day: alcohol confirmation tests at 0.04 or higher, refusals, negative return-to-duty tests, completed follow-up testing, and actual knowledge of use. SAPs report the initial assessment and the completion determination by the close of the next business day. A C/TPA can report for you, but the employer keeps ultimate responsibility, and the rule prohibits reporting anything you know or should know is false.
If a query shows a violation, you may not let that driver perform a safety-sensitive function unless it also shows he completed the SAP process and passed a return-to-duty test. If follow-up tests remain, you can use him only by taking over that testing yourself.
Return-to-duty and how long a violation stays
A violation puts the driver in prohibited status: he cannot perform safety-sensitive duties, driving included, for any DOT employer until he finishes the return-to-duty process in 49 CFR Part 40, Subpart O. That means an SAP evaluation, the education or treatment it prescribes, a negative return-to-duty test, and at least six unannounced follow-up tests in the first 12 months, which the SAP can extend across the following 48 months. The plan follows the driver to a new employer, and he is not told the schedule. Finishing it does not entitle him to his old job; that decision stays with the employer.
A violation stays visible to employers until the SAP has reported, the negative return-to-duty test is in, the follow-up tests are done and five years have passed since the violation determination: five years or the end of follow-up, whichever is later. A driver can ask FMCSA to fix an administrative error, such as a duplicate report, but cannot challenge the result or refusal itself.
CDL downgrades for prohibited drivers
FMCSA’s second Clearinghouse rule, Clearinghouse II (86 FR 55718, October 7, 2021), ties prohibited status to the license itself as of November 18, 2024. Since then a State Driver Licensing Agency must check the Clearinghouse before it issues, renews, upgrades or transfers a CLP or CDL, and must refuse if the driver is prohibited. When FMCSA notifies the state that a licensed driver has gone prohibited, the state removes the commercial privilege and records the downgrade on the CDLIS driver record within 60 days. Under 49 CFR 382.503, that driver cannot drive a commercial motor vehicle until the state reinstates the privilege.
Reinstatement is not automatic: once FMCSA tells the state the driver is no longer prohibited, the state must make him eligible for reinstatement if its law permits, and the steps vary by state. Texas sends a downgrade letter, then a reinstatement notice with further requirements; Iowa tells drivers to check their CDL status online before driving again. Put the annual query on the compliance calendar.
What this means for your insurance
Trucking applications ask whether you have a drug and alcohol testing program, who runs your random pool and whether you run Clearinghouse queries. For a new carrier, 49 CFR 385.321 makes no testing program, no random testing, or using a driver with a known positive, refusal or 0.04 result an automatic failure of the new entrant safety audit on a single occurrence, which brings a notice that your new entrant registration will be revoked.
A prohibited driver cannot legally drive, so leave him off the driver list you send me. Before I shop a trucking policy I ask for the last annual query and your C/TPA’s name, because those two answer most questions. What a new trucking company needs and the authority sequence cover the rest.
Common questions
Do I have to register in the Clearinghouse if I’m a company driver?
No. Registration is not mandatory for drivers, but you need an account to give the electronic consent a full query requires, which includes every pre-employment query, and to see your own record, which costs you nothing.
What is the difference between a limited query and a full query?
A limited query only tells the employer whether there is information on file. A full query releases the record and needs your electronic consent through the Clearinghouse. Pre-employment must be a full query; the annual query can be limited, and a hit has to be followed by a full query within 24 hours.
I’m an owner-operator with my own authority. Can I just register as a driver?
No. Under your own USDOT number you register as an employer and designate a C/TPA to report any violations you incur, as 49 CFR 382.705(b)(6) requires. Using a C/TPA only for random selections does not satisfy that.
How long does a violation stay in the Clearinghouse?
Until four things have happened: the SAP has reported, your negative return-to-duty test is reported, your follow-up tests are done and five years have passed since the violation determination. FMCSA puts it as five years or the completion of return-to-duty and follow-up testing, whichever is later. The Clearinghouse only contains violations that occurred on or after January 6, 2020.
What happens to my CDL if I’m in prohibited status?
Beginning November 18, 2024, your state must complete the downgrade within 60 days of FMCSA’s notice and will not issue, renew, upgrade or transfer a CDL or CLP while you are prohibited, and you cannot drive a commercial motor vehicle until the privilege is reinstated. After you complete return-to-duty and FMCSA tells the state you are no longer prohibited, the state must make you eligible for reinstatement if its law permits; the steps vary by state.
Sources
- 49 CFR Part 382, Subpart G (govinfo, CFR revised as of October 1, 2025): Clearinghouse queries and consent, reporting deadlines, registration, corrections, five-year availability and query fees
- 49 CFR Part 40, Subpart O (govinfo, CFR revised as of October 1, 2025): return-to-duty process, follow-up testing, no obligation to return a driver to duty
- 49 CFR 382.503 (LII): no driving until the state reinstates the commercial privilege
- 49 CFR 383.73 (LII): state CDL procedures, Clearinghouse query, 60-day downgrade and reinstatement
- 49 CFR 385.321 (LII): automatic failure of the new entrant safety audit
- 86 FR 55718 (govinfo): CDL downgrade final rule, October 7, 2021, compliance November 18, 2024; reinstatement processes vary among the states
- FMCSA Clearinghouse: owner-operator reminders
- FMCSA Clearinghouse FAQ: drivers (definition, January 6, 2020 cutoff, registration, query fee, Clearinghouse II, corrections)
- Texas DPS CDL FAQ: Clearinghouse downgrade letter and reinstatement notice
- Iowa DOT: Drug and Alcohol Clearinghouse downgrade and checking CDL status before driving
General information about the FMCSA Drug and Alcohol Clearinghouse as of October 2026, not legal or tax advice; 49 CFR Parts 40, 382, 383 and 385 and FMCSA’s current procedures control. Coverage depends on underwriting and the terms, conditions and exclusions of the policy actually issued.