I wonder if the US has similar ‘protection’ laws in place similar to our grading system?
Roger Smith.

There is, but I don’t believe EVERY building gets full protection.
But at the end of the day, it’s hard to find a use for a 200,000+- sq ft factory.
Besides in this case, it was also very much a “green” issue with clean-up and it has something to do with the river as well. IIRC, something about the local tribe and salmon habitat or something.