1. The "as-built stamp" shall be marked with the words "as-built drawing", and include the basic contents such as the name of the compiling unit, the compiler, the reviewer, the technical director, the compiling date, the supervision unit, etc. The responsible persons of all parties shall be responsible for the as-built drawings.

2. All as-built drawings shall be stamped with the as-built stamp by the preparation unit one by one, and signed by the responsible persons of all parties. The signature in the completion stamp must be complete, and signature is not allowed.

3. All as-built drawings prepared by the design unit must be marked as the completion stage in the design countersignature, and signed by the draftsman and technical director.

4. The completion stamp shall be affixed to the blank space near the drawing mark.

5. As-built stamp shall use indelible red or blue inkpad.