asked the Secretary of State for the Environment whether the recent Noise Advisory Council Report on Concorde was based on data from the CAA DORA 7609 report.
The report of the Working Group of the Noise Advisory Council on Concorde noise levels draws on the measurements of Concorde's noise performance over its first eight months' operation at Heathrow which were published in the CAA DORA 7609 report. The report of the Working Group of the Noise Advisory Council, a copy of which is available in the Library, expresses the views of members of the Council rather than of myself as Chairman. A more up-to-date report by the Civil Aviation Authority to my right hon. Friend the Secretary of State for Trade covering the first 12 months of Concorde's operation will be published shortly.