DOT Audit Document Checklist: The Files You Better Have Ready

When the auditor walks in — or more likely, sends that email requesting documents — you don't want to be scrambling through filing cabinets. We've built this checklist from hundreds of audits we've seen carriers go through. Print it. Use it. Keep everything on this list within arm's reach.

Company-Level Documents

• USDOT registration confirmation
• MC authority grant letter
• BOC-3 proof of filing
• Current insurance certificate and BMC-91 confirmation
• UCR receipt (current year)
• MCS-150 filing confirmation
• Accident register (past 3 years — every DOT recordable accident)
• Written drug & alcohol policy with driver acknowledgments
• Reasonable suspicion training certificates for supervisors
• FMCSA Clearinghouse employer registration confirmation

Per-Driver Documents (DQF)

• Employment application with 10-year history
• CDL copy (front and back, current)
• Medical examiner's certificate (current, not expired)
• Annual MVR for each year of employment
• Road test certificate or CDL equivalent documentation
• Previous employer inquiries (3 years, or Clearinghouse full query)
• Annual certificate of violations
• Pre-employment drug test result
• Annual Clearinghouse limited query record
• Random/post-accident/reasonable suspicion test results (if any)

HOS Records

• ELD data for the past 6 months (must be exportable in standard format)
• Supporting documents: toll receipts, fuel receipts, delivery receipts (6 months)
• Evidence of daily log review by carrier
• Corrective action documentation for any HOS violations found

Vehicle Records

• Annual DOT inspection reports (current, plus 14 months of history)
• DVIRs (past 3 months)
• Preventive maintenance schedule per vehicle
• Maintenance and repair records (1 year while active, 6 months after disposal)
• Vehicle registration for each unit

Drug & Alcohol Program Records

• Random selection records with dates (2 years)
• All drug test results: negatives (1 year), positives (5 years)
• MRO name and contact information
• Collection site information
• Consortium/TPA agreement (if using one)

Organization Tips

Keep everything in a logical structure — either physical or digital. We recommend digital with backups. Name files consistently: DriverLastName_DocumentType_Date. If an auditor asks for John Smith's 2025 MVR, you should be able to produce it in under 60 seconds. That kind of organization makes a strong first impression on an auditor.