What is Part 383?
The federal CDL rulebook covering CDL standards, CLPs, endorsements, restrictions, and penalties.
Dispatch • Back Office • Carrier Resources • Compliance Support
Part 383 is the CDL rulebook. It explains when a driver needs a CDL or CLP, the single-license rule, driver notification duties, employer responsibilities, CDL disqualifications, vehicle groups, endorsements, restrictions, knowledge and skills testing, and penalties for unsafe or unqualified CMV operation.
Tap “Full meaning” to open a popup with a longer explanation without leaving the page.
The federal CDL rulebook covering CDL standards, CLPs, endorsements, restrictions, and penalties.
Applies to CDL/CLP drivers and the employers, dispatchers, and safety teams assigning them.
Commercial drivers must generally have only one CDL tied to their state of domicile.
Carriers must verify CDL class, endorsements, restrictions, and disqualification before dispatch.
Drivers must report certain convictions, suspensions, disqualifications, and license changes.
A disqualified, suspended, or prohibited driver must not be dispatched in a CMV.
CDL class must match the vehicle group, combination, passenger use, or hazmat operation.
Endorsements must match the cargo, vehicle, and operation before dispatch.
Restrictions can block a driver from manual trucks, air-brake CMVs, interstate freight, or combinations.
CDL knowledge, skills, vehicle group, endorsement, and CLP rules must match the assigned work.
A practical CDL verification checklist for class, endorsements, restrictions, MVR, medical, and disqualification.
CDL paperwork must match the real truck, cargo, route, status, and dispatch assignment.
DispatchHQ helps small carriers organize CDL checks, MVR reviews, endorsements, restrictions, DQ files, Clearinghouse checks, driver onboarding, and dispatch controls so the wrong driver does not get assigned to the wrong equipment or freight.
DispatchHQ
DispatchHQ AI Assistant
Hi, I’m Dev — your DispatchHQ AI assistant. Ask me about dispatch plans, FMCSA resources, CSA violations, carrier directory tools, MyCarrierHQ compliance support, broker screening, onboarding, pricing, or how DispatchHQ helps small carriers stay loaded, organized, and protected.
Dev is typing