The end all be all catch all paragraph...
"If this rulebook does not specifically say that you
can change/modify/add something, then you must
consider that the change/modification/addition is
illegal. Any questions about the legality of a change/
modification/addition not covered in this rulebook,
must be answered by INEX in writing and presented to
the tech inspector upon request. If you have a request for
a change/modification/addition, please contact INEX
before making the change/modification/addition."