Which marking should be avoided on shipping containers?

The marking that should be avoided on shipping containers is unique identification markings required by the buyer. This choice is correct because unique buyer-specific markings can create confusion during the shipping and logistics process. When shipping containers have unique identifiers that are not standard or commonly recognized in the shipping industry, it can lead to miscommunication among different parties involved in the transport process, including carriers, customs officials, and recipients.

Standard shipping labels, customs identification numbers, and shipping routing information are essential for ensuring that shipments are processed correctly and efficiently. They provide necessary information about the contents, destination, and handling requirements of the cargo. In contrast, unique buyer-specific markings may not be recognized universally and can complicate tracking and handling, especially if customs officials or other logistics personnel are not familiar with those markings. Therefore, it is advisable to stick to widely accepted and standardized shipping labels and markings to facilitate a smooth shipping process.