The Driver Qualification File, item by item
Updated September 3, 2026 · 8 min read
A driver qualification file — a DQ file — is the folder proving one driver was legally allowed to operate your commercial vehicle. FMCSA requires one for every driver who operates a CMV for you, including you, if you drive. 49 CFR 391.51 lists what must be in it. An auditor works down that list, and anything missing is a violation whether or not the driver was ever unsafe.
What has to be in the file
49 CFR 391.51 is the controlling list. These are the documents an auditor expects to find for each driver:
Employment application
The DOT-style application under 391.21, covering ten years of employment history — not three. This is one of the most common shortfalls, because generic job applications only ask for a few years.
Motor Vehicle Record at hire
Under 391.23, pulled from every state where the driver held a license during the previous three years, within 30 days of hire.
Annual MVR and annual review
391.25 requires a fresh MVR at least once every 12 months and a documented review of it. The review is a separate requirement from the pull — a note, signed and dated, saying you considered the record.
Road test certificate or accepted equivalent
391.31 requires a road test. 391.33 lets you accept a valid CDL in place of one for most drivers. Whichever route you take, the certificate goes in the file.
Current medical examiner's certificate
391.43. Issued by an examiner on the National Registry, valid for a maximum of 24 months and frequently less when a condition is being monitored.
Safety Performance History inquiries
391.23 requires you to ask every DOT-regulated employer from the past three years about the driver's accidents and drug and alcohol history. Keep proof you sent the request even if nobody replies — the request itself is the requirement.
Clearinghouse query results
A full pre-employment query before the driver's first dispatch, and a limited query once every 12 months thereafter.
What has to happen every year
Most of a DQ file is assembled once at hire and then sits still. Three things do not, and they are where files quietly fall out of compliance months after a driver was properly onboarded:
A fresh MVR and a documented annual review of it. A limited Clearinghouse query. And the medical certificate, which is not annual but expires on its own schedule — often on an awkward date nobody is watching.
None of these generate a reminder. A driver hired in good order in March is out of compliance the following March unless somebody remembers.
How long to keep the file
While the driver is employed, the file stays current and complete. After a driver leaves, 391.51 requires you to retain the file for three years from the date of termination.
Retention matters more than carriers expect: an audit can reach back over drivers who have already moved on, and 'we let them go' is not an answer to a records request.
What auditors find missing
In practice the gaps cluster in a few places. The employment application covering only three years instead of ten. The annual MVR review documented nowhere, because the MVR was pulled but nobody wrote down that it had been considered. Safety Performance History requests never sent, or sent with no record kept. And the annual Clearinghouse query, which is easy to miss because nothing about the driver changes on the day it comes due.
None of these are safety problems. They are calendar problems, which is why they are so common in fleets that are otherwise run well.
Common questions
What is a driver qualification file?
A driver qualification file is the set of documents FMCSA requires you to keep for each driver who operates a commercial motor vehicle for you, proving that driver was qualified to do so. The required contents are listed in 49 CFR 391.51.
What does a driver qualification file include?
At minimum: the DOT employment application covering ten years of history, a motor vehicle record from hire, an annual MVR plus a documented annual review, a road test certificate or accepted CDL equivalent, the current medical examiner's certificate, safety performance history inquiries to prior DOT-regulated employers, and Clearinghouse query results.
Who needs a driver qualification file?
Every driver who operates a commercial motor vehicle for your operation — employees, and owner-operators driving under your authority. If you own the company and also drive, you need a DQ file on yourself.
How long do you have to keep a driver qualification file?
For as long as the driver is employed, and for three years after they leave, under 49 CFR 391.51.
What has to be updated in a DQ file every year?
A fresh motor vehicle record and a documented review of it, and a limited Clearinghouse query. The medical examiner's certificate also has to stay current, though it expires on its own cycle of up to 24 months rather than annually.
Stop tracking this by hand
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This guide is general information, not legal advice. Regulations change; verify against the current text of 49 CFR and your state's rules before relying on any of it.