Introduction. The practice of public administration in the Russian Federation is largely based on the implementation and use of public information systems in all areas. Such information systems become a tool for influencing public relations, firstly, acting as a continuation of legal norms, secondly, replacing the actual norms of law in rare individual cases and, finally, acting as a means of certifying and qualifying legal facts. Theoretical analysis. Legal facts act as the most important links of the legal mechanism – both in legal regulation and in law enforcement. An integral part of the legal regulation mechanism is the system of fixing and certifying legal facts. Empirical analysis. State information systems ensure the maintenance of state registers intended for registration and storage of legal facts, and are also able to collect information in an automated mode and receive new information based on the processing of primary data. In the system of legal regulation, there is a tendency to endow such data with legal force, as a result of which they act as legal facts, and the activities for their qualification are delegated to the information system. The increasing complexity of information systems leads to the fact that the implementation of the rights and obligations of subjects becomes critically dependent on their correct work. Results. The author proposed to establish a number of legislative principles and restrictions, in particular, the principle of verification of conclusions obtained through the use of information systems by a person, in cases where such a conclusion has the force of a legal fact that affects the rights and obligations of a person.