Earlier quoted context omitted.
Well, basically any nautical organization tracks them to some extent (i.e. ports, tugs, pilots, whatever). We specifically use AIS [1], tracking ships is quite easy because of it. Other methods are radar. Because it so relatively easy, there are a lot of commercial companies doing it too. The most well-known is probably MarineTraffic [2] [1] https://en.wikipedia.org/wiki/Automatic_identification_syste... [2] https://…
I recently heard about people being fined for sailing in a prohibited zone (I believe an exclusion zone around a drilling platform). How does that jive with the rules against keeping tracking information of personal vessels?
Enforcing an prohibited zone, which exists for safety, probably is well within parameters. If you only track and save the vessel that are very close to your drilling platform because you can't track a persons movements from just that data.