FMCSA Compliance · Updated August 2026
The Drug and Alcohol Clearinghouse is the FMCSA’s national database of CDL drug and alcohol violations, and six years in, it has logged violations against more than 328,000 drivers.
Key Takeaways
- 328,431 CDL and CLP holders had at least one violation on record as of January 2026, up from about 48,000 a year into the program in 2021. Source: FreightWaves.
- 202,345 drivers are currently in prohibited status, and 78.7% of them have not started the return to duty process. Source: FreightWaves.
- The Clearinghouse has logged 38 million queries and covers 3.8 million commercial drivers since it opened in January 2020. Source: FreightWaves.
- 2026 random testing rates hold at 50% for drugs and 10% for alcohol, the sixth straight year at those levels. Source: Trucksafe.
- One fraudulent Substance Abuse Professional cleared an estimated 600 to 1,000 drivers before his August 2025 arrest, roughly 1 in every 85 CDL drivers nationally. Source: FreightWaves.
- FMCSA began requiring biometric identity verification for new Clearinghouse accounts on April 27, 2026, but the 6,305 accounts already in the system have not been retroactively checked. Source: FreightWaves.
- Carriers that missed a required pre employment query paid an average penalty of 7,736 dollars in 2025, and missed annual queries averaged 10,278 dollars. Source: FleetCollect.
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What is the Drug and Alcohol Clearinghouse?
The FMCSA Drug and Alcohol Clearinghouse is a national electronic database that records positive drug and alcohol tests, test refusals, and return to duty progress for every CDL and CLP holder in the country. It went live on January 6, 2020, replacing a paper trail that let a driver fired for a positive test in one state quietly get hired by a carrier in another state that never knew to ask.
Employers now run two kinds of queries. A full pre employment query is mandatory before letting a new driver operate a commercial vehicle, and it costs a fixed fee per driver checked. A limited annual query is mandatory for every driver already on the payroll. If the Clearinghouse shows a violation, the driver goes into prohibited status immediately, and no waiting period or grace window applies. We first covered the rule itself in our original explainer on the Department of Transportation’s Clearinghouse rule, and background on the underlying testing requirements is in our two part series on what you need to know about alcohol and drug testing.
How many drivers are in the Clearinghouse after six years?
By January 2, 2026, 328,431 CDL and CLP holders had at least one violation on record, and 202,345 of them were sitting in prohibited status, unable to legally operate a commercial vehicle. That is a fivefold jump from where the program stood a year in, when we published our first look at the data.
Marijuana still drives the numbers. It accounts for roughly 59 to 60% of all positive drug violations recorded since 2020, more than 184,000 positive tests, well ahead of cocaine, methamphetamine, and amphetamines combined. That single fact explains a lot of the tension carriers feel between hiring in a tight driver market and holding the line on a federal testing standard that has not moved even as state marijuana law has changed around it.
| Metric | Early 2021 (year one) | Early 2026 (year six) |
|---|---|---|
| Cumulative queries run since January 2020 | 5.4 million | 38 million |
| Drivers with a violation on record | ~63,300 | 328,431 |
| Drivers removed or in prohibited status | ~48,000 | 202,345 |
| Random drug testing rate | 50% | 50% |
| Random alcohol testing rate | 10% | 10% |
| Typical penalty per violation | up to ~5,900 dollars | 7,736 dollars average |
What changed when Clearinghouse II took effect?
Clearinghouse II took effect on November 18, 2024, and it closed the biggest loophole in the original rule. Before that date, a driver could be listed as prohibited in the federal database while still holding a valid, unrestricted CDL at the state level, because state driver licensing agencies had no automatic feed from FMCSA. Clearinghouse II gives state DMVs real time access, so a prohibited driver’s CDL now gets automatically downgraded to a regular license until return to duty is complete. That single change is a big part of why the prohibited driver count climbed so sharply through 2025, since it closed a gap that previously let some drivers keep working despite a federal violation.
What is the SAP fraud scandal, and why does it matter for carriers?
In August 2025, a 34 year old driver named Brandon Blackburn was arrested in Prentiss County, Mississippi, with cocaine in his possession while operating a commercial vehicle. The arrest exposed something bigger. Blackburn had spent months registering himself in the Clearinghouse system as a Substance Abuse Professional, or SAP, without the credentials the role requires, then charging drivers 100 to 350 dollars over Facebook and Zelle to falsely log their return to duty completion. Investigators estimate he fraudulently cleared somewhere between 600 and 1,000 drivers, roughly 1 in every 85 CDL drivers nationally who went through a legitimate SAP clearance in that window.
The case was only caught because a licensed counselor named Paul Collette, a real SAP, noticed the pattern and alerted authorities, facing pushback from parts of the trucking community for doing so. At the time of the fraud, FMCSA required zero credential verification to register as a SAP: 6,305 accounts existed in the system with nothing but a self reported claim behind them.
FMCSA’s fix arrived on April 27, 2026. New registrants for SAP, Medical Review Officer, consortium, and employer accounts must now pass biometric identity verification through Login.gov and the FMCSA Identity Verification app before they can touch the database. It is a real improvement, but it only applies going forward. The 6,305 accounts that predate the rule, including whatever accounts Blackburn’s operation and copycats created, have not been retroactively audited. If your company has used a SAP found through a driver referral or a Facebook group rather than a name you verified independently, this is the year to double check that credential. Our post on truck driver disqualification walks through what a legitimate return to duty file should contain.
What are the 2026 random testing rates?
FMCSA announced on January 8, 2026, that random testing rates hold steady for a sixth consecutive year: 50% of the average driver workforce for drugs and 10% for alcohol. Carriers using a consortium should already be enrolled at these rates, and if you are managing your own random pool, this is the number your selection software needs to match. For the mechanics of how a testing program should be structured, see our breakdown of alcohol and drug testing requirements, part two.
How much can a Clearinghouse violation cost your company?
In 2025, FMCSA issued 2,696 violations to carriers for failing to run a required pre employment Clearinghouse query, and the average penalty was 7,736 dollars per violation. Missing a required annual query averaged 10,278 dollars. Neither figure is a ceiling. Individual settlements for carriers with multiple violations discovered during a single investigation have run as high as 125,000 dollars.
The return to duty process shown above is also where a lot of exposure hides. A driver cannot legally operate until every step is logged correctly in the Clearinghouse, and a carrier that lets a prohibited driver behind the wheel because a paper file said “cleared” is exposed even if the fault sits with a fraudulent SAP. Building your own carrier vetting habit matters here too. Our DOT number carrier search tool and CSA score primer are good starting points before you dispatch a load to a carrier you have not worked with before, and our piece on making CSA work for you covers how a clean Clearinghouse record and a clean CSA score reinforce each other in front of brokers and insurers.
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Does state marijuana legalization change your testing obligations?
No, and this remains the single most common compliance question we hear from carriers and owner operators. As of 2026, 24 states and Washington DC allow recreational marijuana, and 40 states plus DC allow some form of medical marijuana. Only Idaho and Kansas prohibit it outright. None of that changes federal DOT testing rules. Marijuana is still a Schedule I substance under federal law, and a positive test triggers the same Clearinghouse violation and the same return to duty process whether the driver lives in a legal state or not. If you are building or updating a company drug and alcohol policy, our guide on truck driver qualifications covers where testing policy fits alongside licensing and medical certification requirements.
What should carriers do about drivers stuck in prohibited status?
With 159,226 prohibited drivers who have not even started return to duty, and the industry still short on qualified drivers, there is a real opportunity for carriers willing to do the paperwork right. A driver who has completed the full return to duty process, all six follow up tests included, is not a risk hire. They are a fully cleared, currently underutilized part of the driver pool, and 126,086 of them are sitting in exactly that position right now. Rehiring or hiring a return to duty graduate, with a verified SAP clearance on file, is one of the more overlooked ways to fill seats in a market that has otherwise been tight. Our reporting on the owner operator comeback and FMCSA compliance review trends both touch on why compliant, well documented drivers are worth the extra look.
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Frequently asked questions
What is the FMCSA Drug and Alcohol Clearinghouse?
It is a national electronic database that gives FMCSA, employers, and safety officials real time access to CDL driver drug and alcohol program violations, including positive tests, test refusals, and return to duty status.
How do I check if a driver is in the Clearinghouse?
Employers run a query through the official Clearinghouse portal at clearinghouse.fmcsa.dot.gov using the driver’s consent and CDL information. A full pre employment query is required before a new driver operates, and a limited annual query is required for every current driver.
What is Clearinghouse II?
Clearinghouse II is the rule that took effect November 18, 2024, giving state driver licensing agencies real time access to Clearinghouse records so they can automatically downgrade a prohibited driver’s CDL until return to duty is complete.
How long does the return to duty process take?
There is no fixed timeline. A driver needs a Substance Abuse Professional evaluation, any required treatment or education, and then six unannounced follow up tests over the next 12 months, so the realistic minimum is close to a year.
Can a driver with a positive marijuana test still get a CDL job?
Yes, but only after completing the full return to duty process. Marijuana remains a Schedule I substance under federal law, so DOT testing rules apply the same way regardless of state legalization.
What happens if my company does not run required Clearinghouse queries?
It is a reportable violation. In 2025 the average penalty for a missed pre employment query was 7,736 dollars, and missed annual queries averaged 10,278 dollars, with total settlements running into six figures for carriers with multiple violations.
How do I know if my Substance Abuse Professional is legitimate?
Ask for the SAP’s credential number and verify it independently rather than trusting a name found through social media or a driver referral. New SAP accounts registered after April 27, 2026 must pass biometric identity verification, but accounts registered earlier have not been retroactively checked.
Does legal marijuana in my state change federal testing rules?
No. As of 2026, 24 states and Washington DC allow recreational marijuana and 40 states plus DC allow medical marijuana, but commercial driving remains governed by federal DOT rules regardless of state law.
Methodology and sourcing: Figures in this update come from FMCSA’s public Clearinghouse monthly reports, FreightWaves’ January and March 2026 reporting on Clearinghouse enrollment and the SAP fraud case, the Federal Register’s 2026 civil penalty filings, and FleetCollect’s analysis of 2025 FMCSA enforcement actions. Reddit and forum discussion were deliberately left out of this update. Clearinghouse compliance is a regulatory and financial liability topic, and anonymous driver anecdotes do not carry the same weight as agency data and named reporting here.