---
title: Part 391 (driver qualification)
description: 49 CFR Part 391 — federal rules for qualifying and filing records on CMV drivers.
date: 2026-10-20
lastReviewed: 2026-10-23
canonical: /glossary/part-391
---
**Part 391** of the FMCSRs covers general driver qualifications, investigations at hire, medical standards, road tests, annual reviews, and driver qualification files. DQid workflows align to these record types; carriers decide compliance outcomes.