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"Three simultaneities" system is a basic system of environmental management of construction projects, and it is an important embodiment of China's policy of putting prevention first in environmental protection. That is, the environmental protection facilities in the construction project must be designed, constructed and put into use at the same time as the main project. The scope of application of the "three simultaneities" system includes: new construction, renovation and expansion projects; Technical transformation project; Engineering projects that may cause pollution and damage to the environment.
1973 In the "Several Provisions on Protecting and Improving the Environment" issued by the State Council, it was formally proposed for the first time that all newly built, expanded and rebuilt enterprises must implement the "three simultaneities" system; 1976 the report on strengthening environmental protection approved by the central government reiterated this system; 1979 environmental protection law (for trial implementation), 1989 environmental protection law, individual environmental protection laws in various periods and the State Council environmental protection regulations all stipulate that the "three simultaneities" system must be implemented in construction projects.
The "three simultaneities" system refers to all capital construction projects, technological transformation projects, natural development projects and other engineering construction projects that may cause pollution and damage to the environment. Among them, facilities for the prevention and control of pollution and other public hazards and other environmental protection facilities must be designed, constructed and put into use at the same time as the main project.
References:
Baidu Encyclopedia-"Three simultaneities" System