§ 7.20 — Nantucket Sound, Vineyard Sound, Buzzards Bay, Narragansett Bay, Ma, Block Island Sound And Easterly Entrance To Long Island Sound, Ny

(a) A line drawn from Chatham Light to latitude 41°36.1′ N. longitude 69°51.1′ W. (Pollack Rip Entrance Lighted Horn Buoy “PR”); thence to latitude 41°26.0′ N. longitude 69°46.2′ W. (Great Round Shoal Channel Lighted Buoy “2”); thence to Sankaty Head Light.

(b) A line drawn from the westernmost extremity of Nantucket Island to the southwesternmost extremity of Wasque Point, Chappaquiddick Island.

(c) A line drawn from Gay Head Light to Block Island Southeast Light; thence to Montauk Point Light on the easterly end of Long Island.