The traffic separation scheme for the approaches to the Strait of Juan de Fuca consists of three parts: the western approach, the southwestern approach, and precautionary area "JF." These parts are described in §§ 167.1301 through 167.1303 . The geographic coordinates in §§ 167.1301 through 167.1303 are defined using North American Datum (NAD 83).
33 C.F.R. §167.1300