There are lots of blue prints for each job. There is always the master set in the head office on site. Another at the General contractors main office. Then every sub contractor has at least one set. Most of the sub contractors blueprints are only of the portion of the building they are doing the work for. For a project the size of a stadium there are easily 200-300 blueprints out there and that is not counting the 100's if not 1000's of partial blue prints sent out for bids and off site contractors.
The blue print used on site are all white. Hope this helps.
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