Potential safety concerns in the area surrounding the wreckage of titanic

Original warning text

WESTERN NORTH ATLANTIC.
POTENTIAL SAFETY CONCERNS IN THE AREA SURROUNDING
THE WRECKAGE OF TITANIC.
1. THE 100TH ANNIVERSARY OF THE SINKING OF THE TITANIC
   MAY RESULT IN SUBSTANTIALLY MORE VESSEL TRAFFIC
   IN VICINITY OF THE WRECK SITE ON OR AROUND 14 APR.
   PASSENGER AND EXPLORATION VESSELS MAY BE KEEPING
   STATION IN CLOSE PROXIMITY TO EACH OTHER POSING A
   POTENTIAL SAFETY CONCERN.
2. VESSELS ARE ASKED TO REFRAIN, WHERE OPERATIONALLY
   POSSIBLE, FROM DISCHARGING GARBAGE, BLACKWATER,
   GRAYWATER AND ANY OTHER INCIDENTAL DISCHARGES
   TO THE OPERATION OF A VESSEL WITHIN 15 MILES
   OF AREA BOUND BY
   41-55-19N 050-10-00W, 41-55-05N 049-43-11W,
   41-32-07N 049-43-38W, 41-32-21N 051-10-17W.
3. VESSELS ARE ASKED TO CONCENTRATE ANY DROP WEIGHTS
   OR OTHER MATERIALS NECESSARY FOR THE NORMAL DESCENT
   AND ASCENT OF SUMBERSIBLE CRAFT WITHIN 100 METERS
   OF THE FOLLOWING POSITIONS:
   A. 41-44-08N 049-56-46W.
   B. 41-43-51N 049-56-32W.
   C. 41-43-58N 049-57-06W.
   D. 41-43-41N 049-57-01W.
4. VESSELS ARE ASKED TO UTILIZE BIODEGRADABLE MATERIALS
   FOR DROP WEIGHT BAGS AND OTHER ITEMS THAT MUST BE
   LEFT ON THE BOTTOM DURING NORMAL SUBMERSIBLE OPERATIONS.
5. VESSELS ARE ALSO ASKED TO REFRAIN FROM INSTALLING,
   ATTACHING OR PLACING ADDITIONAL PLAQUES, MEMORIALS,
   OTHER TEMPORARY OR PERMANENT FIXTURES, HOWEVER WELL
   INTENTIONED, ON THE R.M.S. TITANIC.
6. CANCEL THIS MSG 220001Z APR.