Thanks Joe,
Yes i have looked in some places on the web.
Can you tell me how to get in touch with Mr. Bloodgood? I have found a number of references to him and his expertise but no way of contacting him. Based on what I have found so far, it looks like sometime after 1985 this requirement was dropped. Probably because of foreign manufacturers, though, I have still seen most of new machines come in meeting that standard.