[DROne] notice To AirMen.

For many years, manned aircraft pilots have relied upon NOTAMs (Notice to Airmen) to let everyone affected know that there is a change in the airspace that couldn’t have been made known well in advance.  With the advent of drones, it was felt necessary to use the NOTAM process to inform those using the National Airspace System (NAS) of their presence in certain situations.  This seemed to work for a while but then many became concerned that the system for NOTAMs could quickly become overwhelmed with drone related filings.