The carriage of sensitive goods required intervention and  the introduction of mechanisms to eliminate situations of illegal vending. The monitoring of transport of goods was to be a tool, implemented in particular by imposing obligations on entities participating in the fuel trade to submit data to the SENT register. Their improper implementation has been sanctioned by the imposition of a fine. Its amount is intended to have a preventive function and thus contribute to the implementation of the disciplines stipulated by the SENT Act. The purpose of this paper is to indicate the circumstances which are related to the imposition of a fine under the SENT Act. Knowing them will allow entities whose obligations in the scope of the transport of sensitive goods are created by the SENT Act to take effective measures aimed at their implementation and thus avoid the application of a severe sanction, which is undoubtedly a fine for failure to comply with these obligations.