Who needs a DQ file?
All CDL drivers must have a DQ file.
Non-CDL drivers operating vehicles that meet the definition of a CMV also require a DQ file. This includes vehicles:
weighing over 10,000 lbs.
transporting 9-15 passengers (including the driver) for compensation.
transporting hazardous materials in a quantity requiring placarding.
Each employer must maintain a DQ file for multiple employer drivers, unless a shared employment arrangement is documented, according to FMCSA guidelines.
New hires and re-hired drivers require a new or updated DQ file.