Transportation is experiencing multiple technological disruptions. Nowadays, the mirriads of embedded sensors included in cars are used to produce rich datasets that improve the operation of the vehicle, support tasks for fleet management and improve safety and efficiency. In addition, autonomous and semi-autonomous vehicles communicate each to others and to their surrounding infrastructure to coordinate their operation and support new services. In these new scenarios, it is imperative to establish a secured, trusted and decentralized database that support these services. Recently, many researchers and companies have been exploring how Blockchain, a distributed ledger technology (DLT) successfully applied in other industries, can be used to support ITS services. This talk introduces blockchain and other distributed ledger technologies (DLT), presents some projects and initiatives aiming to apply these technologies in the transport industry and discusses which ITS services can be improved by using them.