Only institutions of higher learning with higher education qualifications can issue diplomas of higher education recognized by the state. Certificates issued by non-academic education institutions do not have the nature of academic certificates. Chongqing Internet College, Chongqing Aviation College, Chongqing First Step Software College, Chongqing Zhongtian College, Chongqing AVIC College, etc. They are all non-academic education institutions and do not have the qualifications for higher education enrollment. Their self-issued certificates do not have the nature of academic certificates.