You need to apply to the Safety Supervision Bureau of Linfen City, Shanxi Province. The operation certificate of construction machinery belongs to the special operation certificate and should be applied to the local safety supervision bureau. According to Article 4 of Management Regulations on Safety Technology Training and Assessment of Special Operators, special operators must go to local hospitals at or above the county level for physical examination before attending the training, and only those who pass the physical examination can participate in theoretical and practical training of safety technology corresponding to their special operations. When registering for training, you need to fill in the Application Form for Training of Special Operators, and submit three one-inch recent photos, one copy of ID card and one copy of academic certificate, which will be reviewed and sealed by each unit.