This is a professional function. Operators of fire control facilities have six professional functions: facility monitoring, facility operation, facility maintenance, facility maintenance, facility inspection, technical management and training, and technical management and training is one of them. Operators of fire control facilities refer to personnel engaged in fire safety management, fire safety inspection, and operation and maintenance of building fire control facilities. Fire control facility operators are divided into five grades, namely, primary fire control facility operators (national professional qualification level 5), intermediate fire control facility operators (national professional qualification level 4), senior fire control facility operators (national professional qualification level 3), fire control facility operators and technicians (national professional qualification level 2).