What should be used on shipping containers to maintain security when using common carriers?

Using padlocks or custody seals on shipping containers is crucial for maintaining security when utilizing common carriers. This practice helps ensure that the contents of the containers remain tamper-proof during transport. Padlocks provide a physical barrier that prevents unauthorized access, while custody seals serve as a visual deterrent and a means of indicating whether a container has been opened or tampered with.

When cargo is being shipped with common carriers, which may handle many different shipments and packages, having a reliable security measure is essential. Padlocks can secure containers that are left unattended, while custody seals can provide proof of integrity for the cargo, reassuring both the sender and recipient about the safety of their shipment.

Other methods, such as plastic wraps, packaging tape, and wire ties, may help secure packages to some extent but do not offer the same level of security or monitoring as padlocks and custody seals. They are less effective in indicating direct tampering and do not provide the same assurance of cargo integrity. Therefore, effective security within shipping logistics heavily relies on the use of padlocks or custody seals.