The USCG website says Boston covers New England and down to nothern NJ and Norfolk/Portsmouth covers from there down to the North Carolina/South Carolina border. Both cover out to 40 degrees west longitude. These are the Rescue Coordination Centers which, one must assume, delegate response to local resources. There are only three RCCs on the east coast: Boston, Norfolk/Portsmouth, and Miami.

�Perhaps I should not have been a fisherman, he thought. But that was the thing that I was born for.�
-- Ernest Hemingway, The Old Man and the Sea