Teachers' qualification certificates are numbered in a unified way throughout the country. Number *** 17 digits, which means that the first four digits of the certificate number are the annual code, which is the annual number for recognizing the teacher's qualification; The fifth and sixth digits are provincial administrative region codes, which represent the provinces (autonomous regions and municipalities directly under the Central Government) where the issuing authority is located, and adopt the standard of "codes of provinces, autonomous regions and municipalities directly under the Central Government" in the Code of Administrative Divisions of the People's Republic of China promulgated by the state; The seventh, eighth and ninth digits are the code of the teacher qualification accreditation institution, and the code number shall be uniformly stipulated by the provincial education administrative department; The tenth place is the teacher qualification type code.