What do you mean by stamping the construction organization design plan that you sent to the supervision company for approval? -Stamp the project! The premise is that the contract price of the project cannot be greater than 30 million (more than 30 million is a large-scale project, which needs to be stamped with the official seal)! The supervision unit of construction organization design does not need to stamp, but it needs the signature of the director. The director only needs to sign the application form.