What's the difference between the initial registration and change registration of a first-class builder?

Initial registration means that you have just obtained the certificate of construction engineer and registered in the company for the first time. The registration period is three years (you can register within three years after obtaining the certificate). If you register again in the third year after obtaining the certificate, you must have the corresponding continuing education hours to complete the registration. After registration, it is called a registered first-class builder. Change of registration means that you have registered in the original unit (already a registered construction engineer). To register in other units, both the original unit and the current registration unit need to log in to the enterprise system at the same time to transfer personnel files in and out, and complete the change registration. The initial registration is generally about 3 months, and the change of registration is relatively fast, generally 1 month is enough. Beijing Political Research Information Consulting Center 0 10-5 1339902 Teacher Feng