When is a cargo securement system required to be re-inspected during travel?

A cargo securement system is required to be re-inspected after a change in duty status because this ensures that the load remains secure as circumstances change during travel. Duty status changes may occur when the driver takes a break, switches drivers, or ends a driving shift. Such changes can impact how the load is distributed and secured, making it essential to verify that no shifting or settling has occurred that could compromise safety.

Maintaining a secure load is vital for safe operation, as an unsecured or improperly secured cargo can lead to dangerous situations, including loads shifting during transit, which can affect vehicle handling and lead to accidents. Regular re-inspection aligns with best practices in commercial driving, enhancing road safety for all users.

The other options suggest intervals for re-inspection that are not directly related to changes in driving conditions or duties, which are more critical times for ensuring the integrity of cargo securement.