Is it risky to work with one construction certificate and ID card?

There is no risk and it is safe.

It is definitely safe to combine the first-level construction engineer with human certificate. The reasons are analyzed as follows. As we all know, the country’s management of first-class construction engineers is becoming more and more strict and standardized, requiring that our projects must be integrated with witnesses. This is not only for the safety of the project, but also for us. For the construction engineer's own safety consideration, if the construction engineer's certificate is not in his hand, it will bring unforeseen risks.