Final answer:
The subject of this question is Geography and it is discussing the regulations regarding recreational boats operating in U.S. Coastal Waters or the Great Lakes.
Step-by-step explanation:
The subject of this question is Geography. The question is discussing the regulations regarding recreational boats operating in U.S. Coastal Waters or the Great Lakes. It states that these regulations apply to bodies of water directly connected to U.S. Coastal Waters or the Great Lakes 'up to a point where those waters are less than 2 miles wide'.