Submit the drawings to the construction authority. The as-built drawings submitted to the archives of the construction authority must be stamped with a completion stamp, and not only a completion stamp, but also each box in the completion stamp must be filled in truthfully and signed personally. The contents filled in the completion stamp include the full name of the construction unit and the name of the supervision unit of the construction project, signed by the preparer, technical person in charge of the construction unit, on-site supervisor, and director, and then fill in the completion date truthfully.