Ok, Here is the document as sent to all CD's when they hold an AMA 424 event. Article 3 Section 4 says 4 engines must be sent in for approval from the Manufacturer. I don't know if it would be legal for a layman to give them 4 engines for review, I have no idea other than the statement in this document. The acceptance or rejection letter goes to the Manufacturer, so I would think they would need to submit it. At any rate, here is the info most of you have been requesting.

A PDF version of better quality will be posted on the [link=http://www.nmpra.org/]NMPRA[/link] site soon, Stan told me!