Abbreviation: DQ File

Driver Qualification File

A file that carriers must maintain for each CDL driver, containing required documents such as the driver application, MVR inquiries, annual reviews, medical certificate, and pre-employment test results.

DQ file requirements are specified in 49 CFR Part 391. Most records must be retained for 3 years after the driver leaves employment.

Related: mvr , annual review , medical examiner certificate

Last updated: June 4, 2026