Rulebook › 49 CFR Part 383
PART 383—COMMERCIAL DRIVER'S LICENSE STANDARDS; REQUIREMENTS AND PENALTIES
Official text from the eCFR, current as of 2026-10-22.
Subpart A—General
- § 383.1 Purpose and scope.
- § 383.3 Applicability.
- § 383.5 Definitions.
- § 383.7 Validity of CDL issued by decertified State.
Subpart B—Single License Requirement
- § 383.21 Number of drivers' licenses.
- § 383.23 Commercial driver's license.
- § 383.25 Commercial learner's permit (CLP).
Subpart C—Notification Requirements and Employer Responsibilities
- § 383.31 Notification of convictions for driver violations.
- § 383.33 Notification of driver's license suspensions.
- § 383.35 Notification of previous employment.
- § 383.37 Employer responsibilities.
Subpart D—Driver Disqualifications and Penalties
- § 383.51 Disqualification of drivers.
- § 383.52 Disqualification of drivers determined to constitute an imminent hazard.
- § 383.53 Penalties.
Subpart E—Testing and Licensing Procedures
- § 383.71 Driver application and certification procedures.
- § 383.72 Implied consent to alcohol testing.
- § 383.73 State procedures.
- § 383.75 Third-party testing.
- § 383.77 Substitute for knowledge and driving skills tests for drivers with military CMV experience.
- § 383.79 Driving skills testing of out-of-State students; knowledge and driving skills testing of military personnel.
Subpart F—Vehicle Groups and Endorsements
Subpart G—Required Knowledge and Skills
- § 383.110 General requirement.
- § 383.111 Required knowledge.
- § 383.113 Required skills.
- § 383.115 Requirements for double/triple trailers endorsement.
- § 383.117 Requirements for passenger endorsement.
- § 383.119 Requirements for tank vehicle endorsement.
- § 383.121 Requirements for hazardous materials endorsement.
- § 383.123 Requirements for a school bus endorsement.