To apply for driving a small automatic passenger car for the disabled, a physical condition certificate issued by a specialized medical institution designated by the Provincial Health Department shall be submitted. In the "Regulations on the Application and Use of Motor Vehicle Driving License", there is no provision about whether you can speak, only about listening.
Extended data
Deaf-mute students practice driving test just like ordinary students. Deaf-mute students use the same car and examination room as ordinary students when practicing and taking the driver's license. Nothing special. Training is as strict as exams. The driver's license of deaf-mute students is the same as that of ordinary people, but it is specially marked on the secondary page that hearing AIDS must be worn when driving a motor vehicle.
According to the "Regulations on the Application and Use of Motor Vehicle Driving License", people who suffer from organic heart disease, epilepsy, Meniere's disease, vertigo, hysteria, paralysis agitans, psychosis, dementia, nervous system diseases that affect physical activity and other diseases that hinder safe driving, and are red and green color blind, cannot apply for a driving license.
Reference source; Baidu Encyclopedia-"Regulations on the Application and Use of Motor Vehicle Driving License"