Exchange of Notes Between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of the Union of Soviet Socialist Republics Concerning Amendments to the UK/USSR Air Services Agreement of 1957 As Amended by the Exchanges of Notes on 22 September and 14 October 1960 and 11 February and 14 April 1969

Moscow, 17 February 1988 and 4 April 1988, Exchange of Notes Between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of the Union of Soviet Socialist Republics Concerning the Addition of a New Article on Aviation Security to the UK/USSR Air Services Agreement of 1957 As Amended by the Exchange of Notes on 22 September and 14 October 1960 and 11 Februar