The eight key technical posts of a construction enterprise include builder, quality engineer, safety officer, standard engineer, material engineer, mechanic, laborer and documenter.

As can be seen from the definition, these eight employees are the key technical positions of construction enterprises, so the eight employee certificates belong to the practice certificate, not the familiar builder or cost engineer certificates belong to the practice qualification certificate.

Eight membership cards are uniformly distributed by the provincial housing and construction departments. Generally, it is entrusted to a trade association or a training school for a few days, and then the exam is over. Those who pass the examination are issued by the housing and construction department. The number of training and examinations varies from province to province each year, usually several times. There is no uniform regulation on training places, some are in cities and some are in provincial capitals.