Commercial Driver's License (General Knowledge)

Specialized & Licensing - Commercial Driver's License (General Knowledge) (part of DMV & Licensing)

Practical Applications

Record-Keeping and Logbooks

Hours of Service (HOS)

Commercial drivers must track their driving, on-duty, and rest time to avoid fatigue and stay legal.

  • Use a paper logbook or an electronic logging device (ELD).
  • Know the maximum driving hours allowed (e.g., 11 hours driving after 10 consecutive hours off).
  • Take required breaks and rest periods.

Inspections and Audits

Law enforcement and employers may check your records at any time.

Staying Organized

Neat, accurate records protect you from fines and help prove your compliance during inspections.

Examples

  • A driver uses an ELD to record hours and avoid exceeding daily driving limits.

  • During a roadside inspection, a driver presents a completed logbook to the officer.