The consultation is being run by the Department for Transport (DfT) at a UK level.
Details and supporting documentation (including the Regional Consultation Documents for Scotland) can be found at:-
http://www.airconsult.gov.uk
DfT have set-up a call centre to deal with enquiries and requests for additional documents. The telephone number is:-
0845 100 5554
In addition Highlands & Islands Enterprise (HIE) have made some of their work available at:-
http://www.hie.co.uk/airconsult.htm