Hi there,
Once NATS has any plans for airspace changes, in a mature state, they must then go through a consultation exercise with interested parties. This will include local councils, national park authorities, etc, as well as airspace users.
The 7 stage process is detailed in the CAA's CAP725 document '''CAA Guidance on the Application of the Airspace Change Process''. You can find more details here, as well as a link to the document.
http://www.caa.co.uk/default.aspx?ca...90&pageid=9129
Until the process is initiated (by NATS), preparatory work is not in the public domain, nor should it be. Otherwise all sorts of hares might be set running for something which turns out to be totally different from the fully developed public consultation proposal. This would be a waste of time and effort on everyones part.
The CAA will publish consultation documents for the public at the appropriate stage in the process, usually on their website. At that point, folks can have their say.