Personal defense projects on the construction of bai construction companies do not have qualification requirements, but only on the design and supervision of the qualification requirements for the higher level of human defense projects, the construction unit has a confidentiality requirements.
Construction units must have the "production license of protective equipment for human defense projects", the provincial "protective equipment for human defense projects product filing certificate", "human defense protective equipment designated production and installation enterprise qualification certificate".
People's defense project for the protection of wartime personnel and material shelter, people's air defense command, medical rescue and separately constructed underground protective buildings, as well as the combination of ground construction can be used for wartime air defense of the basement. Human defense project is to guard against sudden attacks by the enemy, effectively shelter personnel and materials, and save the war potential of the important facilities.