In the latest People's Republic of China (PRC) petrochemical industry standard SH3503-2007, the compilation and stamp format of as-built drawings have been greatly modified. The original completion stamp was signed by the construction unit and supervision unit, but in the latest 2007 version of the specification, it was signed by the design unit and supervision unit.

However, the as-built drawings still need to be drawn by the design institute with computers to ensure the neatness and accuracy of the drawings. The benefits of this are as follows:

1 can ensure the clarity, accuracy and beauty of the as-built drawings, because the as-built drawings added by hand are not as good as those drawn by computers anyway.

2. It is mandatory for design units to pay attention to drawings, which also implies punishment. A well-designed and prepared drawing should not change too much. It is also a punishment for the design institute's imprecise design, which can urge the design institute to design more strictly and avoid a lot of changes in the later period.

3. The change is forcibly redrawn by the design unit, which can make the design unit understand the reason of the change more deeply in the process of sorting out the change, which is very effective for improving the design level of the design institute. Therefore, it is very necessary to redraw the as-built drawings, and it is also very necessary and good to ask the person in charge of redrawing to be a design institute. Interim provisions of the State Construction Committee on drawing up the completion drawings of capital construction projects.