The traffic separation scheme in the Strait of Juan de Fuca consists of five parts: the western lanes, southern lanes, northern lanes, eastern lanes, and precautionary area "PA." These parts are described in §§ 167.1311 through 167.1315 . The geographic coordinates in §§ 167.1311 through 167.1315 are defined using North American Datum (NAD 83).
33 C.F.R. §167.1310