What is Part 390?
The foundation section explaining how FMCSA safety rules apply to motor carriers.
Dispatch • Back Office • Carrier Resources • Compliance Support
A plain-English guide to the foundation section of the Federal Motor Carrier Safety Regulations, including who the rules apply to, key definitions, USDOT marking, accident registers, coercion, emergency relief, intermodal equipment, and carrier compliance responsibilities.
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The foundation section explaining how FMCSA safety rules apply to motor carriers.
Explains which carriers, drivers, employers, and CMVs may be covered by FMCSA rules.
Key FMCSA definitions like CMV, motor carrier, employer, employee, and interstate commerce.
Truck identity rules for legal name, trade name, and USDOT number display.
Carriers cannot knowingly allow, require, or authorize FMCSA violations.
General expectations for safety records, electronic records, and business information.
A required record for qualifying DOT-recordable accidents.
Pressure to make a driver violate safety rules is prohibited.
Emergency exemptions must be verified, documented, and limited to covered operations.
Rules for chassis, containers, inspections, repairs, and defect reporting.
A practical review list for small carriers trying to avoid common Part 390 problems.
How Part 390 connects to audits, insurance reviews, brokers, and roadside inspections.
DispatchHQ helps small carriers organize dispatch, compliance, paperwork, safety documentation, carrier packets, broker communication, and back-office workflows with a carrier-first approach.
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