Date of signature Norway §"I 4 February 1985 Date of receipt of the instrument of ratification or accession 9 July 1986 Panama 22 February 1985 24 August 1987 Paraguay 23 October 1989 12 March 1990 Peru 29 May 1985 Philippines 18 June 1986 };21 Poland 13 January 1986 Portugal 4 February 1985 j!1 Romania 4 February 1985 Leone 4 February 1985 Sudan 21 October 1987 4 June 1986 ill Switzerland Togo 21 August 1986 24 January 1990 }ll lAl Sweden 9 February 1989 18 March 1985 Somalia Spain 26 July 1989 18 December J.990 }ll Senegal Si~rra 7 July 1988 i!l 4 February 1985 8 January 1986 4 February 1985 2 December 1986 25 March 1987 18 November 1987 Tunisia IJJ 26 August 1987 23 September 1988 Turkey 25 January 1988 ill lAl Uganda 2 August 1988 3 November 1986 }ll Ukrainian Soviet Socialist Republic 27 February 1986 Union of Soviet Socialist Republics 10 December 1985 3 March 1987 United Kingdom of Great Britain and Northern Ireland ~I 15 March 1985 8 December 1988 United States of America 18 April 1988 -61- 24 February 1987