§ Lord Kennetasked Her Majesty's Government:
What, in the various "particular circumstances" referred to in the Written Answer by Baroness Chalker of Wallasey on 3 February 1997 (WA 128), have been the maximum and the minimum heights at which they have set the national airspace, within which the United Kingdom exercises sovereignty.
55WA
§ Viscount GoschenNo particular circumstances have arisen which have caused us to define the vertical limits of United Kingdom airspace.