Why official reports miss a drug mention

A clean Clearinghouse query does not mean the last start happened. A reported positive can show. A pre-employment test that never happened usually will not. The packet comes back quiet because a lot of what carriers later write about drugs or alcohol was never a filing in the first place.

Among the reviews carriers left on CDLScan, 11.7% mention drugs or alcohol. That figure describes those reviews, not drivers in general: carriers write after a bad run, so the share tells you what shows up once someone bothers to report it. Some of that slice belongs in the Clearinghouse. A lot of it does not. Treating a quiet query as a character reference is how you buy a ticket and then read the review.

A recruiter who has already pulled PSP, an MVR, and a Clearinghouse query can still be looking at a dull file. That is not a failure of those reports. It is what they were designed to do.

What those reports actually hold

The Clearinghouse holds drug and alcohol program events: positives, refusals, actual knowledge, return-to-duty status. If someone sat a test that was filed, you may see it. If they refused a test that was reported, you may see that too. Confirming orientation, taking a flight, and vanishing before the cup is not a program event. It is an empty chair.

PSP is a crash-and-inspection product. It gives you about five years of crash data and about three years of roadside inspections. A missed clinic is not a roadside inspection. A drug mention in a review is not a crash unless someone also filed one.

An MVR is a state driving record. Tickets, suspensions, license actions. It is useful for the thing it is. A DUI that hit the license may show. A pre-employment test that never happened will not.

Previous-employer history — the DAC-style employment check, the safety-performance request — is the closest official place this should appear. Sometimes it does. Often it does not. The last carrier answers what they are required to answer, or they answer slowly, or they never onboarded the person at all. There is no rehire box for someone who never got a truck. How we treat these shares is on the methodology page.

So a clean packet is not a lie. It is an incomplete sentence. The missing clause is what previous carriers bothered to write when they were no longer being polite.

Why the write-up stays off the page

The language in those reviews is a week, not a code. Drug test. Never showed. Flight ticket. Plane ticket. Pre-employment. Stopped answering. Test never. None of that maps onto a violation you can buy unless someone also filed a program event.

The companions in the same write-ups tell you why the official systems stay quiet so often. In 16.0% of drugs-or-alcohol reviews the carrier also mentions paid travel with no arrival. In 14.5% they also mention a no-show. In 12.2% they also mention going unreachable. In 10.3% they also mention an abandoned truck. In 7.5% they also mention aggression. In 7.0% they also mention theft or money games. In 6.4% they also mention a crash or damage. Those are operational facts. They live in a recruiter’s notes and in the next desk’s phone call. They become a Clearinghouse item only if someone also recorded a program event.

Stay away and waste your time are a different register. In 39.3% of these reviews the carrier also writes a verdict. That is heat at the end of the write-up, not a filing. Read whether a test was taken.

The share of reviews mentioning drugs or alcohol moved from 13.6% in 2018 to 11.2% in 2025. I stop that line at 2025. It eased. It did not disappear. A problem that common in what carriers write down, and that often never becomes a filing, is exactly the gap a clean packet hides.

I would not drop the query because of this. I would stop treating a quiet query as proof they will walk into the clinic on Monday.

What was visible before you spent

The pattern I’d watch for is not a code on a report. It is urgency around a ticket, a last job that lasted days, and a previous desk that already used the same words: never showed, flight ticket, drug test, stopped answering. Those words show up in carrier write-ups. They do not show up as “drugs” on an MVR.

Ask the candidate to walk the last start without help. Did they make orientation. Was a test taken. Who bought the flight. What will the previous carrier say if you call. People who sat a test they already disclosed can usually name a clinic and a day. People who never sat one often skip the last start and jump to the next job.

Typical sequence, built from how these reviews cluster, not from one person’s file: the application is thin. They want the flight this week. Official reports are dull. You book the seat. The test is on the calendar. Then the next write-up is never showed, flight ticket, drug test. That sequence does not generate a Clearinghouse hit.

The words carriers actually reach for are in how they write about drugs or alcohol. The form that pulls a last start out of a candidate is in what to ask before a drug mention. The longer read on the missed test is in screen the name before you pay for the test. Why the packet is a floor, not a character reference, is in truck driving background checks.

What to do with a clean packet

Keep running the reports. They catch the class of problem they were built for. Then add the check they cannot do: what previous carriers already wrote about this name.

If the last carrier will only confirm that they never showed, that is not a pass. It is a reason to read what other carriers put on the record when they were not filling out a form. Check the name on CDLScan before you buy a ticket. It takes less than a minute.

A clean query means the filed program events are clean. A test that never happened is usually not filed. Those are different claims. Only one of them is in the packet you already buy.

I am not going to pretend this is an independent study. CDLScan is the source, and I write from the data they share. A drugs-or-alcohol mention is common enough in what carriers bother to write down, and a quiet packet is not a substitute for reading that sentence.

Frequently asked questions

If PSP, MVR, and Clearinghouse are clean, is the driver safe to hire?

They are clean on the items those systems store. Drugs-or-alcohol mentions are in 11.7% of the reviews carriers left on CDLScan, and a lot of that language never becomes a filing. A quiet packet is necessary. It is not sufficient.

Is a DAC or previous-employer check enough?

It is the right official place to look, and it still misses a lot. Carriers answer slowly, narrowly, or not at all. The last desk may never have onboarded the person. There is no rehire box for an empty chair.

Does a clean Clearinghouse query mean no drug mention ever happened?

No. Clearinghouse holds reported program events. A pre-employment test that never happened is usually an employment event. It becomes a query item only if someone also recorded a positive, a refusal, or another filing.

Should I skip official reports and only read carrier reviews?

No. Reviews do not replace a license check, a crash history, or a Clearinghouse query. They cover the class of problem those reports were never built to hold.

What should I ask the previous carrier if they will not give a story?

Ask whether they made orientation and whether a test was taken. If they will only confirm dates, go read what other carriers already wrote about the name.

Why do so many drug write-ups never become a record?

Because nobody is required to file “they never showed for the clinic” the way they file a positive or a refusal. The next employer only sees it if the last one bothers to say it.

Where do I look first if the packet is already clean?

The name, in what previous carriers wrote. Start on CDLScan, then call. Do not buy the ticket first and look later.