The article discusses the concept of high-risk objects, their properties and sources of risk (associated with the threat of explosion, collapse, fire, chemical, nuclear, biological damage of the population and territory).Before defining the mechanisms to ensure their safety, the author traces the evolution of international law in the context of the problem. The fight against terrorist crimes began in the 30-ies of the last century. International organizations and regional associations of states have developed and adopted a large number of international legal instruments aimed at preventing and combating terrorism. Conventions cover civil aviation, airports, maritime, fixed platforms, etc.The article describes the main areas of international legal regulation, related to securing safety of high-risk facilities. Most of the acting international conventions aimed at preventing precisely technological terrorism, in whatever form it shows - bombing, maritime, airborne, nuclear, etc.Drawing a parallel the author presents domestic and CIS agreements, mostly relating to the carriage of dangerous goods by different means of transport: road, railway, waterway. All of them have a high degree of detail.This article shows rulemaking experience of EU member states in ensuring the safety of high-risk facilities. As the main example is presented the basic statutory document in which these requirements are enshrined, is now a Green Paper “European Programme for Critical Infrastructure Protection”.The author expresses the opinion that at present within the United Nations there should be developed a draft of International Convention for the Suppression of technological terrorism.