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Who must comply?
['CMV Parts and Maintenance']

- The FMCSRs, including equipment specifications, apply to all employers, employees, and CMVs that transport property or passengers in interstate commerce.
The Federal Motor Carrier Safety Regulations (FMCSRs), including the equipment specifications, apply to all commercial motor vehicles (CMVs) and the employers and employees operating them.
A “commercial motor vehicle” is any self-propelled or towed motor vehicle used on a public roadway in interstate commerce to transport passengers or property when the vehicle:
- Has a gross vehicle weight rating (GVWR), gross combination weight rating (GCWR), gross vehicle weight (GVW), or gross combination weight (GCW) of 10,001 pounds or more, whichever is greater; or
- Is designed or used to transport 9 or more passengers (including the driver) for compensation, or 16 or more passengers (including the driver) not for compensation; or
- Is used to transport hazardous materials in a quantity requiring placarding.
Refer to 390.3 for details on how the rules apply and any exemptions.
Note:Part 399 prescribes the step, handhold, and deck requirements for trucks and truck-tractors that have a high-profile cab-over-engine configuration, for entrance, egress, and back of cab access, manufactured on or before September 1, 1982.