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 Secs. 167.1301 through 167.1303. The geographic coordinates in Secs. 167.1301 through 167.1303 are defined using North American Datum (NAD 83). [USCG-2002-12702, 75 FR 70826, Nov. 19, 2010]