The FMCSRs — Rebuilt for Safety Professionals

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eregs.app/regs/390.5
Part 390
§ 390.3 General applicability
§ 390.5 Definitions
§ 390.7 Rules of construction
Part 391
§ 391.11 Qualifications of drivers
§ 391.21 Application for employment
Part 395
§ 395.3 Maximum driving time
§ 395.8 Records of duty status
Current · Jan 15, 2026
§ 390.5
Definitions
(a)
Accident means an occurrence involving a commercial motor vehicle operating on a highway in interstate or intrastate commerce...
(b)
Commercial motor vehicle means any self-propelled or towed motor vehicle used on a highway in interstate commerce to transport passengers or property when the vehicle has a gross vehicle weight rating...
(d)
Driver means any person who operates any commercial motor vehicle.
FMCSA Guidance
FMCSA Interpretation
CMV Weight Threshold — GCWR vs. GVWR
When towing, use the higher of GCWR or GVWR to determine CMV status...
Trucksafe Video
Are You a CMV? Understanding the Thresholds
9 min · Trucksafe Consulting
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Driver Distribution · Fleet Pro LLC
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