Twice. Units or individuals who need to participate in the training of Red Cross ambulancemen to register for the Red Cross should contact the Red Cross office by telephone in advance to determine the number and time, and the Red Cross will run classes in a unified manner according to the actual situation. Training cost: initial training 160 yuan/person; Retraining 80 yuan/people. Training time: the training time is one day. Training requirements: students are required to bring three one-inch color photos and a copy of their ID cards when attending the training. At the end of the training, after passing the written test and on-site operation examination, a certificate of Red Cross ambulance service will be issued, which is valid for three years.