According to relevant information, the Regulation on Safety Management of Explosives for Civil Use stipulates: br 1. Record of off-site operation: the public security organ at the county level where the blasting operation is located. Br2。 Materials that should be submitted by the blasting operation unit when the blasting operation contract is filed. Br3。 Information about explosion-related activities. Article 36 of the Regulations on the Safety Management of Explosives for Civil Use stipulates that if a blasting operation unit engages in blasting operations across provinces, autonomous regions and municipalities directly under the Central Government, it shall report the relevant information of the blasting operation project to the public security organ of the people's government at the county level where the blasting operation is located in advance. It is best to go to the local official website to check the first-hand authoritative information.