Okay, I concede that the document is authentic.
Took some doing, but I scratched it up at the original NARA site. It doesn't pop up in a first-level search, and you have to get a bit tricky, but it's there. The whole thing is 180 pages, and I wonder how many people have read it all. I sure don't have the time. I have, however, scanned it to confirm that the few pages I have seen elsewhere are authentic.