Gives guidelines for determining- (a) whether the extent of aircraft noise intrusion makes building sites 'acceptable', 'unacceptable' or 'conditionally acceptable' for the types of activity to be, or being, undertaken (Clause 2.3); (b) for 'conditionally acceptable' sites, the extent of noise reduction required to provide acceptable noise levels indoors for the types of activity to be, or being, undertaken; and (c) the type of building construction necessary to provide a given noise reduction, provided that external windows and doors are closed.
