(3)The requirements set out in the 1974 International Convention for the Safety of life at Sea (1974 SOLAS), the 1966 International Convention on Load Lines (LL 1966) and the 1973 International Convention for the Prevention of Pollution from Ships, as amended by the 1978 Protocol (MARPOL 73/78) provide for a high level of ship safety and environmental protection. The International Convention on Tonnage Measurement of Ships, 1969 provides for a uniform system for the measurement of the tonnage of merchant ships.