The international maritime organization (imo) has amended traffic separation schemes (tss) for the west…

Original warning text

                      TRAFFIC SEPARATION SCHEMES.
1. THE INTERNATIONAL MARITIME ORGANIZATION (IMO) HAS AMENDED TRAFFIC
   SEPARATION SCHEMES (TSS) FOR THE WEST COAST OF THE UNITED STATES
   EFFECTIVE 150001Z JUL. CHART CORRECTIONS FOR ALL AFFECTED CHARTS
   WILL BE PUBLISHED IN NM 29/00.
2. RELOCATE THE SOUTHERN APPROACH OF THE TSS OFF SAN FRANCISCO:
   A. TRAFFIC SEPARATION ZONE IN AREA BETWEEN 37-39.1N 37-27.0N AND
      122-40.4W 122-43.0W.
   B. TRAFFIC LANE FOR NORTHBOUND TRAFFIC BETWEEN THE TRAFFIC
      SEPARATION ZONE AND A LINE BETWEEN 37-39.3N 122-39.2W AND
      37-27.0N 122-39.2W.
   C. TRAFFIC LANE FOR SOUTHBOUND TRAFFIC BETWEEN THE TRAFFIC
      SEPARATION ZONE AND A LINE BETWEEN 37-27.0N 122-44.3W AND
      37-39.4N 122-44.3W.
3. EXTEND THE EXISTING TSS IN THE SANTA BARBARA CHANNEL 18 MILES
   WESTWARD:
   A. TRAFFIC SEPARATION ZONE BOUND BY LIMIT JOINING
      34-20.9N 120-30.2W, 34-18.9N 120-31.0W, 34-25.7N 120-51.8W,
      34-23.8N 120-52.5W.
   B. TRAFFIC LANE FOR WESTBOUND TRAFFIC BETWEEN THE TRAFFIC
      SEPARATION ZONE AND A LINE BETWEEN 34-21.8N 120-30.0W AND
      34-26.6N 120-51.5W.
   C. TRAFFIC LANE FOR EASTBOUND TRAFFIC BETWEEN THE TRAFFIC
      SEPARATION ZONE AND A LINE BETWEEN 34-18.0N 120-31.2W AND
      34-22.8N 120-52.8W.
4. AIDS TO NAVIGATION ASSOCIATED WITH THE TSS WILL BE RELOCATED IN
   SUBSEQUENT NOTICE TO MARINERS.
5. CANCEL THIS MSG 27 AUG.