PRECAUTIONARY AREA
 Traffic within the Precautionary Area consists of vessels maneuvering on various courses. 
   Vessels transiting the Precautionary Area should, when possible,
   keep the centerline of the area to port
   providing for a counterclockwise movement of vessels within the area.
   Mariners are advised to use extreme caution when navigating within this area.


TRAFFIC LANES
 Traffic lanes are intended for use by vessels 1600 gross tons and over. 
  The provisions of Inland Navigation Rule 9 apply to all vessels navigating in the traffic lanes.


DEEP WATER ROUTE
 Vessels with a draft of 13.7 meters/ 45 feet or greater should use the Deep Water Route east of
   the Golden Gate Bridge (approximate location 37°49'11.318"N / 122°28'42.770"W).

 Vessels intending to use the Deep Water Route should notify San Francisco Traffic
   before passing "Mile Rocks" (approx GP of Mile Rocks is 37°47'20.714"N / 122°30'23.850"W).

 VTS maintains a continuous radiotelephone watch on
   VHF-FM channels 12 (156.60 MHz), 13 (156.65 MHz), 14 (156.70 MHz) and 16 (156.80 MHz).
   The call sign is "SAN FRANCISCO TRAFFIC."
   Once communications are established, the abbreviated call sign "TRAFFIC" may be used.
   If communications on Ch. 12, Ch. 13 or Ch. 14 are lost,
   call TRAFFIC on Ch. 16 and be prepared to shift to another frequency.
   All reports should be in English and use the 24-hour clock system.


 Deep draft vessels will neither meet nor overtake in the Deep Water Route.

 Deep draft vessels bound for Anchorage 9 should 
   pass east of "Blossom Rock" (approximate GP of Blossom Rock is (37°49'06.331"N / 122°24'10.004"W),
   then through the C-D or D-E span of the San Francisco-Oakland Bay Bridge
   (approximate GP between these spans is 37°48'03.289"N / 122°22'29.883"W).


RECREATION AREAS
 Recreation areas are intended primarily for use by recreation vessels.  Such areas 
   should not be used by vessels 300 gross tons or more except in case of emergency or 
   special circumstances.