# DQ File Audit Prep Checklist: What an FMCSA Auditor Will Ask For

Canonical: https://www.fastdriverscreening.com/guides/dq-file-audit-prep-checklist
Category: DQ File
Published: 2026-05-02
Updated: 2026-05-02
Read time: 10 min

## TL;DR

> A pre-audit walkthrough of every §391.51(b) item — application, MVR, prior-employer investigation, road test, medical certificate, National Registry verification, annual review, §391.27 self-certification, disqualification documentation, §383.31 notifications. Add Clearinghouse and §382 records for CDL drivers.

## Key takeaways

- Auditors check both that documents exist and that they are dated within the §391.23/§391.25 windows in §391.51 sequence.
- The §391.51(d) retention rule is duration of employment plus three years — separated drivers from the prior 36 months count too.
- The most common audit finding is a missing MVR from a prior state of residence; run a CDLIS check before closing pre-employment.
- A documented, contextualized gap (e.g. "prior employer did not respond after good-faith effort under §391.23(d)(3)") is more forgivable than an undiscovered gap.
- Beyond the §391.51(b) eleven items, modern audits expect Clearinghouse query results and §382.301 pre-employment drug test records for CDL drivers.

## Cited entities

- Driver Qualification File
- 49 CFR §391.15 (https://www.ecfr.gov/current/title-49/section-391.15)
- 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 §391.51 (https://www.ecfr.gov/current/title-49/section-391.51)
- 49 CFR §382.701 (https://www.ecfr.gov/current/title-49/section-382.701)
- 49 CFR §383.51 (https://www.ecfr.gov/current/title-49/section-383.51)
- FMCSA Pre-Employment Screening Program (PSP) (https://www.psp.fmcsa.dot.gov)
- Commercial Driver's License Information System (CDLIS)
- FMCSA Drug & Alcohol Clearinghouse (https://clearinghouse.fmcsa.dot.gov)
- Federal Motor Carrier Safety Administration (https://www.fmcsa.dot.gov)

## Excerpt

The phone call from the [FMCSA](https://www.fmcsa.dot.gov) division office comes with seven days' notice on a New Entrant Safety Audit and as little as twenty-four hours' notice on a Compliance Review or a focused intervention. The auditor will arrive with a list of drivers selected from the carrier's most recent MCS-150 update, ask for the §391.51 Driver Qualification File on each of them, and start reading. By the time the auditor leaves, the carrier's CSA score and operating-authority status both ride on whether the file was complete, in §391.51 order, and signed by the right people on the right dates.

This guide is a pre-audit checklist for the §391.51 file. Use it the day the audit notice arrives — but ideally, use it quarterly so the file is in audit shape every day, not just on audit day.

## The federal foundation

> 49 CFR §391.51(a) — Each motor carrier shall maintain a driver qualification file for each driver it employs.

> 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) — Except as provided in paragraph (e) of this section, the motor carrier shall maintain in the driver qualification file the documents listed in paragraphs (b)(1) through (b)(11) for as long as the carrier employs the driver and for three years thereafter.

The retention rule is critical. An auditor selecting drivers from the carrier's roster may pull the file on someone who left the company eighteen months ago. If the file was destroyed at termination, the carrier has a §391.51(d) violation on top of any underlying issue.

## Step 1: Pull every required driver's file

The auditor's selection methodology pulls a sample of drivers — typically all CDL drivers with a recent crash, a recent inspection violation, or no inspection record at all (a flag for non-existent or under-the-radar drivers). For a small carrier, the auditor may pull every driver's file. For a large carrier, th

[...truncated — read full article at canonical link above.]

Full article: https://www.fastdriverscreening.com/guides/dq-file-audit-prep-checklist