A few people were interested in this FAA document, so here is the link. This is the infamous "2007 notice" that is mentioned constantly online concerning unmanned operations in the NAS. Pages 4,5,6 are of the most interest, but the whole thing is worth a read. http://www.faa.gov/about/initiatives/uas/reg/media/frnotice_uas.pdf
I think this document is very dated. The government moves really slow, unless of course it's to bail out some lobbyist buddies.