Regulation 27 / Types of Ships
Following the development of guidelines for the verification of damage stability requirements of
tankers, a number of discrepancies have been identified for the damage stability requirements in the
Load Line Convention and its protocol. Thus, this amendment has been adopted in order to clearly
define the requirements for damage stability.
Through the IMO Res. MSC.345(91) it is clarified that the filling of ballast tanks as well as the damage
stability calculations are not required for service loading conditions. Additionally, two methods for
considering the free surface effect are given in detail as outlined below:
 Method 1: appropriate to virtual corrections; and
 Method 2: appropriate to the use of actual free surface moments according to the assumed
tank fillings for damage case.
These amendments are applicable to all ships that should comply with the damage stability regulations
of the Load Line Convention and come into force on July 1, 2014.
Regulation 47 / Southern Winter Seasonal Zone
IMO Res. MSC.329(90) has extended the southern limit of the Summer Zone by about 50 nautical
miles around Cape Agulhas in order to give increased sea room to ships passing through this sea area.
The reason for this increase is due to the enhance piracy activity recorded to the East of the African
Continent.
The new northern boundary of the Southern Winter Seasonal Zone is:
“the rhumb line from the east coast of the American continent at Cape Tres Puntas to the point latitude
34° S, longitude 50° W, thence the parallel of latitude 34° S to longitude 16° E, thence the rhumb line
to the point latitude 36° S, longitude 20° E, thence the rhumb line to the point latitude 34° S, longitude
30° E, thence along the rhumb line to the point latitude 35°30' S, longitude 118° E, and thence the
rhumb line to Cape Grim on the north-west coast of Tasmania; thence along the north and east coasts
of Tasmania to the southernmost point of Bruny Island, thence the rhumb line to Black Rock Point on
Stewart Island, thence the rhumb line to the point latitude 47° S, longitude 170° E, thence along the
rhumb line to the point latitude 33° S, longitude 170° W, and thence the parallel of latitude 33° S to the
point latitude 33° S, longitude 79° W, thence the rhumb line to the point latitude 41° S, longitude 75°
W, thence the rhumb line to Punta Corona lighthouse on Chiloe Island, latitude 41°47΄ S, longitude
73°53' W, thence along the north, east and south coasts of Chiloe Island to the point latitude 43°20' S,
longitude 74°20' W, and thence the meridian of longitude 74°20' W to the parallel of latitude 45°45' S,
including the inner zone of Chiloe channels from the meridian 74°20' W to the east…”
Ship owners should inform that crew members with regards to the new limits as outlined above. This
amendment is applicable to all vessels trading in this sea area from January 1, 2014.
Applicability
Regulation Ship Type / GT Date of entry into force
Regulation 47 All vessels that LL Convention applies 1 January 2014
Regulation 27
All ships that should comply with the
damage stability regulations of the LL
Convention
1July 2014