DQ File Guides

The Driver Qualification (DQ) File is a core compliance obligation for FMCSA-regulated carriers. These guides cover every required document under 49 CFR Part 391.

CDL Driver Application Checklist

What a FMCSR-compliant CDL driver application must include under 49 CFR 391.21, and what to watch for when reviewing completed applications.

Updated 2026-06-04

Safety Performance Inquiry Checklist

How to conduct pre-employment safety performance history inquiries for new CDL driver hires, what to ask, and how to document responses (or non-responses).

Updated 2026-06-04

New CDL Driver Onboarding Checklist

Complete compliance onboarding checklist for new CDL driver hires: DQ file setup, pre-employment drug test, Clearinghouse query, and first-week steps.

Updated 2026-06-04

Medical Certificate in the DQ File

Specific requirements for maintaining the DOT medical certificate in the driver qualification file: format, currency, and what to do when it expires.

Updated 2026-06-04