33 C.F.R. § 3.05-10
Sector Boston's office is located in Boston, MA. The boundaries of Sector Boston's Marine Inspection Zone and Captain of the Port Zone start at the boundary of the Massachusetts-New Hampshire coasts at latitude 42°52'20" N, long 70°49'02" W; thence proceeding east to the outermost extent of the EEZ at a point latitude 42°52'18" N, longitude 67°43'53" W; thence southeast along the outermost extent of the EEZ to a point at latitude 42°08'00" N, longitude 67°08'17" W; thence west to a point at latitude 42°08'00" N, longitude 70°15'00" W; thence southwest to the Massachusetts coast near Manomet Point at latitude 41°55'00" N, longitude 70°33'00" W; thence northwest to latitude 42°04'00" N, longitude 71°06'00" W; thence to the Massachusetts-Rhode Island boundary at a point latitude 42°01'08" N, longitude 71°22'53" W; thence west along the southern boundary of Massachusetts, except the waters of Congamond Lakes, to the Massachusetts-New York boundary at latitude 42°02'59" N, longitude 73°29'49" W; thence north along the Massachusetts-New York boundary to the Massachusetts-New York-Vermont boundaries at a point latitude 42°44'45" N, longitude 73°15'54" W; thence east along the entire extent of the northern Massachusetts boundary to the point of origin.
33 C.F.R. §3.05-10