The certificate of qualification for on-the-job training of civil builders is a necessary certificate for taking up posts, that is, the identity certificate of the builders. The qualification certificate is used to prove that the person doing Jian 'an has obtained some degree of certification, such as registered first-and second-class construction engineer, registered safety engineer and registered quality engineer. Without the construction engineer's certificate, you can also meet the requirements of the registration examination and pass the qualification examination.