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Title 49

Displaying title 49, up to date as of 8/11/2026. Title 49 was last amended 8/07/2026.
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Title 49TransportationPart / Section
Subtitle BOther Regulations Relating to Transportation100 – 1699
Chapter IIIFederal Motor Carrier Safety Administration, Department of Transportation300 – 399
Subchapter BFederal Motor Carrier Safety Regulations350 – 399
Part 383Commercial Driver's License Standards; Requirements and Penalties383.1 – 383.155
Subpart AGeneral383.1 – 383.7
Subpart BSingle License Requirement383.21 – 383.25
§ 383.21Number of drivers' licenses.
§ 383.23Commercial driver's license.
§ 383.25Commercial learner's permit (CLP).
Subpart CNotification Requirements and Employer Responsibilities383.31 – 383.37
Subpart DDriver Disqualifications and Penalties383.51 – 383.53
§ 383.51Disqualification of drivers.
§ 383.52Disqualification of drivers determined to constitute an imminent hazard.
§ 383.53Penalties.
Subpart ETesting and Licensing Procedures383.71 – 383.79
Subpart FVehicle Groups and Endorsements383.91 – 383.95
§ 383.91Commercial motor vehicle groups.
§ 383.93Endorsements.
§ 383.95Restrictions.
Subpart GRequired Knowledge and Skills383.110 – 383.123
Subpart HTests383.131 – 383.135
§ 383.131Test manuals.
§ 383.133Test methods.
§ 383.135Passing knowledge and skills tests.
Subpart IRequirement for Transportation Security Administration approval of hazardous materials endorsement issuances383.141
§ 383.141General.
Subpart JCommercial Learner's Permit and Commercial Driver's License Documents383.151 – 383.155