To supervise and control all-round work safety within the administrative regions. To regularly prepare statistics and make analysis of accidents due to lack of work safety that have occurred within their own administrative areas and publish the information regularly. To exercise all-round supervision and control over dangerous chemical articles, fireworks and non-coal mineral mountains to preliminarily investigate, further censor and submit the license of safe production of companies of chemical articles, fireworks and non-coal mineral mountains; to exercise supervision and control over the protection facilities of oil pipelines; to coach and coordinate work safety check within the administrative regions; to disseminate knowledge about work safety and to conduct supervision by means of public opinion over violations of work safety laws and regulations. To supervise the production and business units to see to it that safety facilities for their projects that shall be built, renovated or expanded (hereinafter all are referred to as construction projects) are designed, constructed, and put into operation and use simultaneously with the principal parts of the projects. To carry out strict inspections in the production and business units located in their administrative regions in which major accidents due to lack of work safety are liable to occur. Production and business units that do not have such conditions are not allowed to engage in production and business activities.