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Securing your cargo is crucial primarily because it helps to avoid losing the load during transit. When cargo is not properly secured, it can shift or even fall off the vehicle while it is in motion. This not only poses a significant safety hazard to the driver but also endangers other road users and can lead to accidents. Ensuring that the cargo is tightly secured prevents it from moving, ensuring that the vehicle remains stable and controllable.

While preventing theft, ensuring proper weight distribution, and helping in navigating through traffic are also important factors to consider, the primary concern during transportation is ensuring the load remains with the vehicle and does not create a danger to everyone on the road. Properly secured cargo contributes to overall safety and compliance with regulations, which is why this aspect is emphasized in CDL training.