 IACS traces its origins to the recommendations of the International Load Line Convention of 1930.The convention recommended collaboration between classification societies to secure "as much uniformity as possible in the application of the standards of strength upon which freeboard is based...".Following the Convention, Registro Italiano Navale (RINA) hosted the first conference of major societies in 1939 - attended by ABS, BV, DNV, GL, LR and NK - which agreed on further cooperation between the societies.