The year 1956 is a significant milestone in international road freight transport. The CMR International Convention was adopted this year. The reason for its adoption was to unify the rules in international road freight transport in connection with the contract of carriage. This step was very important not only for carrier but also for the consignee and consignor. The convention also characterized one of the most important documents in road freight transport, which accompanies goods throughout transport. Its name is the CMR consignment note. In recent years in road transport, the original CMR consignment note has been replaced by another CMR consignment note. This practice is referred to as the neutralization of consignment note. In another consignment note, only some data are changed compared with the original, and the goods are not handled during transport. It is an interference with the system of functioning of transport documents, which aims to obscure the actual movement of the consignment during transport. The paper contains own research, which identifies the presumption of the existence of neutralization of transport documents in road transport. The authors also propose the use of new technologies, namely new smart tachographs, through which the sender can prevent the neutralization of documents.Neutralization of transport documents in road transport 89. Table 1 States Parties to the CMR Convention (Sources: processed according to UNTC) Member countries of the CMR Convention Member countries of the CMR Convention and the Protocol