# The Complete DQ File Checklist Under 49 CFR §391.51

Canonical: https://www.fastdriverscreening.com/guides/dq-file-checklist
Category: DQ File
Published: 2026-04-15
Updated: 2026-05-01
Read time: 8 min

## TL;DR

> A 49 CFR §391.51 Driver Qualification File contains eleven required documents — application, MVR, prior-employer investigation, road test, medical certificate, National Registry verification, annual review, and more. Retain the file for the duration of employment plus three years.

## Key takeaways

- Every commercial driver — CDL or non-CDL — needs a §391.51 file with the eleven items listed in §391.51(b).
- The §391.51(d) retention rule is duration of employment plus three years, even after termination.
- Filing order matters: auditors check both whether documents exist and whether they appear in §391.51 sequence with valid dates.
- The pre-employment MVR (§391.23) and CDLIS check happen before the driver's first day; the road test, medical certificate, and prior-employer investigation must be complete within 30 days of placement.
- A reusable DQ File template eliminates the most common §391.51 audit findings — incomplete sections and missing reviewer signatures.

## Cited entities

- Driver Qualification File
- 49 CFR §391.51 (https://www.ecfr.gov/current/title-49/section-391.51)
- 49 CFR §391.21 (https://www.ecfr.gov/current/title-49/section-391.21)
- 49 CFR §391.23 (https://www.ecfr.gov/current/title-49/section-391.23)
- 49 CFR §391.25 (https://www.ecfr.gov/current/title-49/section-391.25)
- 49 CFR §391.27 (https://www.ecfr.gov/current/title-49/section-391.27)
- 49 CFR §382.701 (https://www.ecfr.gov/current/title-49/section-382.701)
- Federal Motor Carrier Safety Administration (https://www.fmcsa.dot.gov)

## Excerpt

The [Driver Qualification (DQ) file](/glossary/dq-file) is the federal paperwork trail that proves every commercial driver you employ is legally fit to operate the vehicle they have been assigned to. It is required for every CDL driver and most non-CDL commercial drivers, and it is the very first thing an [FMCSA](https://www.fmcsa.dot.gov) auditor asks to see during a compliance review. A missing document — or even a complete document filed in the wrong place — can trigger a violation on the audit report and roll directly into your CSA score.

The contents are not optional and they are not negotiable. Every requirement is spelled out in 49 CFR §391.51, and the regulation lists each document by name. This guide walks through every required item, in the order it typically arrives during the hiring process, with a one-line summary of why FMCSA wants to see it.

## The legal foundation

The §391.51 contents requirement reads, in summary form:

> 49 CFR §391.51(a) — Each motor carrier shall maintain a driver qualification file for each driver it employs. The driver qualification file may be combined with the driver's personnel file.

> 49 CFR §391.51(b) — The driver qualification file shall include the documents listed in paragraphs (b)(1) through (b)(11) of this section.

> 49 CFR §391.51(d) — The motor carrier shall maintain the documents listed for as long as the carrier employs the driver and for three years thereafter.

The retention rule is important: even after termination, you keep the entire DQ file for three years. Auditors routinely ask to see files for drivers who left the company eighteen months earlier.

## The complete checklist, in filing order

Here is every document required by §391.51, in the order you collect them during the hiring process. For each item we have noted the regulation citation and the practical reason FMCSA wants it on file.

### 1. Application for Employment

The application is the first piece of paper in the file and the foundation fo

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