Community or medical institutions above the county level. According to Article 4 of the "Regulations on the Administration of Safety Technical Training and Assessment for Special Operations Personnel", special operations personnel shall meet the following conditions: (1) Over 18 years old and not exceeding the national statutory retirement age; (2) Medical institutions at the community or county level or above The person has passed the physical examination and has no organic heart disease, epilepsy, Meniere's disease, vertigo, hysteria, paralysis shaking, mental illness, dementia, or other diseases or physical defects that would prevent him from engaging in corresponding special operations. Tower cranes are Special operations personnel must go to a community or medical institution above the county level for a physical examination.