The rules need to create a reliable financial incentive, or they will be routinely ignored.
The easiest way to accomplish this would be to utilize existing AIS signals (https://en.wikipedia.org/wiki/Automatic_identification_syste...). But doing so could create an incentive for captains to switch off their transponders, which would lead to safety issues.
The easiest way to accomplish this would be to utilize existing AIS signals (https://en.wikipedia.org/wiki/Automatic_identification_syste...). But doing so could create an incentive for captains to switch off their transponders, which would lead to safety issues.