HISTORY OF LOAD LINE AND OVERVIEW OF ILLC 1966

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It has long been recognized that the limitation on the drought to which a ship may be loaded makes a significant contribution to her safety. These limits are  given in the form of free board, which constitutes, besides external weather tight and water tight integrity, the main objective of convention.
HISTORY:-
The first recommendation about cargo loading limits based on free board were introduced by Lloyd's register in 1835. The free board was assigned as a function of the height of the cargo hold. It was 3 inch/ feet of the height of cargo hold.
           In 1860's after increased loss of ships due to overloading a member of the British Parliament, Samual Plimsoll advocated the creation of legislation about load line.
              It was 1930 that there was international agreement for universal application load line regulations and the load line convention was adopted.
         In 1966, another load line convention was held in London which re examined and amended the 1930 rules. The international convention on load line was adopted on 5th april 1966 and entered into force on 21st july 1968.
 PROVISIONS INCLUDED IN 1966:-
1) Provision were made for determining the free board of ships by subdivision and damage stability calculations.
2) The regulation took into account the potential hazard present in different zone and different seasons.
3) The technical annex contained several additional safety measures concerning doors, freeing ports and hatchways. The main purpose of these items was to ensure water tight integrity of the ship's hull below the free board dice.
4) 1966 convention required all assigned load lines to be marked amid ship on each side of the ship, together with deck line.
5) Ships intended for carriage of timber as deck cargo, were assigned a smaller free board as the deck cargo provided protection against the impact of waves.

OVERVIEW OF ILLC 1966:-
1) ARTICLES -- Covering matters of contract between government, survey and certification
2) ANNEX I --- Regulations for determining load lines( divided in 4 chapters)
       Chapter I-- General -- Strength of hull, types of ship, definitions and marking
       Chapter II -- Conditions of assignment of free board
       Chapter III -- Free boards -- Evaluation of free boards in terms of geometrical, physical characteristic
                                                     of any ship
        Chapter IV -- Special requirement for ships assigned timber free board.
  ANNEX II -- Defines Zones, areas and seasonal periods appropriate to the various load line marking.
  ANNEX III -- Prescribes the form and scope and certificates including the ILL certificate and ILL
                             exemption certificate.      

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