When is a driver required to maintain a log book?

A driver is required to maintain a log book for any journey over 100 air miles because this regulation is designed to ensure that the driver complies with federal and state hours-of-service requirements. The log book serves as a record of the driver's operating hours, helping to prevent fatigue-related incidents by monitoring the amount of time spent behind the wheel. This practice is crucial for maintaining safety standards, as it allows for proper tracking of rest periods and overall driving hours.

When driving beyond this threshold, additional documentation is necessary to ensure safety regulations are followed, whereas shorter trips, such as those within 50 air miles or short trips, generally do not impose the same level of oversight. Ultimately, maintaining a log book for trips exceeding 100 air miles contributes to better safety protocols and driver accountability.