Subject 2 examiners can complain about not stamping, which is useful. According to the relevant information, you can't issue a driver's license without signature. The provisions of the Regulations on the application and use of motor vehicle driving licenses are as follows. Invigilators should conscientiously perform their examination duties, take exams in strict accordance with regulations and accept social supervision. Before the exam, you should introduce yourself, explain the exam requirements, and verify the identity of the applicants. During the examination, the examination procedures shall be strictly implemented, the examination results shall be evaluated according to the examination items and standards, the examination results shall be announced on the spot after the examination, and the reasons for the unqualified examination shall be evaluated. The examination report of each subject shall be signed by the applicant and the examiner. Unsigned motor vehicle driver's license shall not be issued. If the examiner doesn't stamp, he can complain to the driving school.