It is valid for three years after obtaining the certificate of registered second-class constructor. You can choose to complete the required continuing education classes within a certain period of three years.

A registered construction engineer shall meet the requirements of continuing education stipulated by the competent construction department of the State Council within the validity period of each registration.

Continuing education is divided into compulsory courses and elective courses, and each course is 60 hours in each registration period. After continuing education reaches the qualified standard, a certificate of continuing education will be issued.

The specific requirements of continuing education shall be formulated separately by the competent construction department of the State Council in conjunction with the relevant departments of the State Council.