Final answer:
The rules of the road apply upon the high seas and connecting waters navigable by seagoing vessels, which means they are relevant in international waters as well as in any territorial waters that can be navigated by seagoing ships.
Step-by-step explanation:
The rules of the road on the water, similar to traffic laws on land, apply to ensure safe and orderly navigation of vessels. The question is referring to navigational rules which are a part of maritime law. According to the United Nations Convention on the Law of the Sea (UNCLOS), which clarifies numerous maritime legalities, the established rules apply upon the high seas and connecting waters navigable by seagoing vessels. This includes all waters that seagoing vessels can navigate between different countries and territories, and is not restricted to areas outside territorial waters or only to waters frequented by foreign vessels. Also, under U.S. jurisdiction, maritime laws affect all cases of admiralty and maritime jurisdiction, which involve national waters.