Compliance

DOT Driver Qualification File Checklist: The Complete §391.51 Guide for Small Carriers

MyCarrierVault Team April 28, 2026 5 min read

If a DOT investigator walks into your office tomorrow and asks for a driver's qualification file, you have one job: hand it over, complete, in under five minutes. Anything missing is a violation. Anything stored on a personal laptop or in a Gmail thread is a violation waiting to happen.

This guide walks through every document the FMCSA requires in a Driver Qualification (DQ) file under 49 CFR §391.51, who has to file it, when it expires, and how long you must keep it after the driver leaves.

What is a DQ file, and who needs one?

A DQ file is a single, organized record proving a driver is legally qualified to operate a commercial motor vehicle (CMV) for your motor carrier. You must maintain one for every driver you employ, including yourself if you're an owner-operator with your own DOT number.

The file must be available for inspection by an authorized FMCSA representative on request. There is no grace period. There is no "I'll have it tomorrow." Missing a DQ file is a recordable violation that goes on your CSA score under the Driver Fitness BASIC.

The §391.51 checklist

Under §391.51(b), the DQ file must contain the following documents:

On hire (one-time, kept permanently in the file)

  • [ ] Driver's application for employment (§391.21) — three years of employment history, list of accidents, list of license suspensions, etc. Driver must sign certifying accuracy.
  • [ ] Inquiry to previous employers (§391.23(a)(1)) — written request to every DOT-regulated employer the driver had in the past three years. Keep both your inquiry AND any responses received.
  • [ ] Inquiry to state agencies for driving record (§391.23(a)(2)) — request the Motor Vehicle Record (MVR) from every state where the driver held a license in the past three years.
  • [ ] Road test certificate or equivalent (§391.31 or §391.33) — either a road test you administered, or a copy of a valid CDL (which under §391.33 satisfies this requirement for most drivers).
  • [ ] Pre-employment drug test result (§382.301) — kept separately in a confidential file, but the DQ file must reference it.
  • [ ] Safety Performance History records request and response — under §391.23(d), required for any DOT-regulated previous employer in the past three years.
  • [ ] PSP (Pre-Employment Screening Program) report — not technically required but considered industry standard; many insurers require it.

Annually (refreshed every 12 months)

  • [ ] Annual MVR (§391.25) — pull the driver's MVR from each state of license at least once every 12 months.
  • [ ] Annual review of driving record (§391.25(c)(2)) — a written, signed evaluation by the carrier (you) noting whether the driver is still qualified. Just having the MVR is not enough — there must be a separate signed review.
  • [ ] Driver's annual list of violations (§391.27) — driver-signed list of all moving violations in the past 12 months. Even if there are zero, the driver must sign a statement saying so.

Every two years (or less, if expiry is sooner)

  • [ ] Medical examiner's certificate (Med Card) (§391.43) — issued by a certified medical examiner from the National Registry. Maximum two-year validity; can be shorter for drivers with conditions requiring monitoring.
  • [ ] Medical Examiner's National Registry verification (§391.23(m)) — proof you verified the examiner was on the National Registry on the date of the exam.

Conditional (only if applicable)

  • [ ] Skills Performance Evaluation Certificate — for drivers operating under federal vision, hearing, or diabetes exemptions.
  • [ ] Entry-Level Driver Training (ELDT) certification — for any driver who got their CDL after February 7, 2022.
  • [ ] Hazmat endorsement TSA threat assessment — for drivers with H or X CDL endorsements.

How long to keep DQ records

Under §391.51(c) and §379 retention rules:

Document Retention period
Application, employment inquiries, road test, original MVR Duration of employment + 3 years after termination
Annual MVR, annual review, annual violation list 3 years from the date of generation
Medical certificate, National Registry verification 3 years from the date of issue
Pre-employment drug test result Confidential file, 5 years

After three years post-termination, you can dispose of the file — but if there's any active litigation, hold it until the matter resolves.

The most common DQ file violations (and how to avoid them)

Based on FMCSA enforcement data, these are the violations small carriers get hit with most often during a compliance review:

  1. Missing annual review of driving record (§391.25(c)) — Carriers pull the MVR but forget the separate signed review.
  2. Expired medical certificate (§391.41) — The Med Card lapsed and the carrier didn't catch it. The driver was operating "medically unqualified" the entire time.
  3. No Safety Performance History request (§391.23(d)) — Carriers send the basic previous-employer inquiry but skip the safety history piece.
  4. No National Registry verification (§391.23(m)) — Required since June 2018 but routinely missed.
  5. Annual violation list missing or unsigned (§391.27) — A blank "no violations" statement still has to be signed and dated by the driver every year.

Every one of these is preventable with a calendar reminder and a shared checklist. Every one of these triggers a CSA Driver Fitness BASIC point that pushes you closer to an intervention threshold.

Why this is hard to do in spreadsheets

The reason DQ files end up incomplete isn't that carriers don't care. It's that the requirements span multiple expiration timelines (annual, biennial, ad-hoc) for multiple documents per driver across multiple drivers — and there's no single deadline that aligns. A 10-driver fleet has roughly 120 separate compliance dates to track. A spreadsheet doesn't email you when one of them gets close. By the time you check, the Med Card expired six weeks ago and the driver has been operating illegally that whole time.

This is exactly why we built MyCarrierVault — to flip the model from "remember to check" to "be told before it expires." Every document you upload gets an expiry date. We email you 30, 14, and 7 days before anything lapses. The DQ file matrix view shows you, at a glance, every driver's status across every required document.

Start a free 30-day trial and import your fleet in under 15 minutes. No credit card.

  • 49 CFR §391.51 — Driver qualification files (general requirements)
  • 49 CFR §391.21 — Application for employment
  • 49 CFR §391.23 — Investigations and inquiries (including (d) safety performance history and (m) National Registry verification)
  • 49 CFR §391.25 — Annual inquiry and review of driving record
  • 49 CFR §391.27 — Driver's annual list of violations
  • 49 CFR §391.43 — Medical examination
  • 49 CFR §382.301 — Pre-employment drug testing
Tags: dq-file drivers fmcsa audit 391.51