Transport law has traditionally been regarded as an international area of the law. The modern multimodal transport, combining different types of transports, has changed this. Multimodal transports are not regulated by any international conventions. In commercial practice, one liability model is preferred in Europe whereas another is preferred in the US. In this sense, modern transport law has become reginialized. The regionalization creates difficulties when goods are trasnported between the two regions. Neither the attempt to regulate multimodal transports in the new global UNCITRAL Convention for Carriage of Goods, Wholly or Partly by Sea (Rotterdam Rules), nor the proposal for common EU rules on multimodal transports will solve this problem.