The Hague Rules of 1924 were updated in 1968 to become the Hague-Visby Rules, but the changes were modest. The modified convention still covered only "tackle to tackle" carriage contracts, with no provision for multimodal transport. The industry-changing phenomenon of
containerization was barely acknowledged. The 1978 Hamburg Rules were introduced to provide a framework that was both more modern, and less biased in favour of ship operators. Although the Hamburg Rules were readily adopted by developing countries, the new convention was shunned by richer countries who stuck with Hague and Hague-Visby. It had been expected that a Hague/Hamburg compromise might arise, but instead the vast (96 articles) Rotterdam Rules appeared. The final draft of the Rotterdam Rules, which was assembled by the
United Nations Commission on International Trade Law, was adopted by the United Nations on 11 December 2008, and a signing ceremony was held in
Rotterdam on 23 September 2009. Signatories included the United States, France, Greece, Denmark, Switzerland and the Netherlands; in all, signatures were obtained from countries said to make up 25 percent of world trade by volume. ==Main provisions==