The study is related to the development of labour protection requirements by performing preventive, preparedness, response and mitigation measures for officials of the State Fire and Rescue Service in the event of leakage of dangerous chemicals in objects of increased hazard and the response to binding action thereof, as well as the development and improvement of a regulatory base for officials of the State Fire and Rescue Service who perform the work at event sites with the presence of hazardous chemical, biological, radioactive and explosive substances. Potential disasters and large-scale industrial accidents, that can potentially be caused by leakage of hazardous chemicals, occur rarely, but can have a serious impact on public order and on the health of the environment. In the event of an accident at an object of increased hazard, in which activities with dangerous substances are performed, or in the event of a road traffic accident as a result of the transport of these substances, the function of the State Firefighting and Rescue Service while performing the tasks specified in the Regulations of the State Firefighting and Rescue Service shall be: to carry out fire-fighting and rescue operations, to organise and take preventive measures in the field of State fire safety and civil protection, to participate in the assessment of measures taken for the assessment and reduction of industrial accidents risks, to manage and carry out rescue work, in cooperation with other authorities, to take and manage emergency accident prevention measures, thereby protecting the public and the environment from damage from hazardous chemical substances. In accordance with Annex 11 of the State Civil Protection Plan, when the leakage of dangerous chemicals at an object occurs, the State Fire and Rescue Service shall not only take response and mitigation measures, but shall also take preventive and preparedness measures during the period from 2020 to 2027 specified in the order. In performing and managing response and emergency accident relief measures in the event of leakage of dangerous chemicals at an object, officials of the State Fire and Rescue Service with special service degree may be subject to risk factors present in the event, which differ significantly from risk factors when performing fire-fighting and rescue works in other types of events. Description of the results of the study: on the basis of the results of the study, proposals were developed for the development of existing labour protection requirements and measures at the State Fire and Rescue Service, which were implemented to ensure the safety of officials with special service degrees in the performance of tasks related to the performance of emergency response and elimination measures, in the event of the leakage of dangerous chemicals at increased hazard objects, as well as study the risks of leakage of hazardous chemicals, which may affect and evaluate officials involved in rescue works and disaster relief works, as well as develop proposals for the development of the existing labour protection system