Reference
Use these pages when you need definitions, retention periods, safety rating basics, or applicability notes.
Record Retention Periods for DOT Audit Prep
A source-backed quick reference for common trucking audit record retention periods and what to keep in the packet.
Trucking Compliance Glossary
A plain-language glossary for DOT audit prep terms such as DQ, HOS, ELD, MVR, DVIR, CSA, BASICs, UCR, IRP, and IFTA.
Safety Ratings and CSA Basics
A plain explanation of FMCSA safety ratings, CSA BASICs, and why audit findings can matter after the document review.
ELD, HOS, and Drug Testing Applicability Notes
A cautious checklist for when ELD, HOS, and Part 382 drug and alcohol testing rules may or may not apply.
Sources
Official and agency source registry used by DOT Audit Prep.