The labeling idea is just the beginning. Soon, every country will be putting its own label on everything.

In Japan, the labeling of imported vehicles from the USA with 'asterisks' is being discussed, and the meaning is this: it is a way to visually indicate the features or problems of the vehicle so that buyers can immediately understand its status.
reasons for such labeling:

Compliance with safety and environmental standards. The USA and Japan have different regulations, and asterisks may indicate that the vehicle does not fully comply with Japanese standards.