Economic Community of West African States 1999 Economic Community of West African States Gazettes 1999 2008 2007 2006 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1982 1981 1980 1979 2 gazettes August 1999 Economic Community of West African States Official Journal dated 1999-08-01 volume 36 (2.9Â MB, PDF) December 1999 Economic Community of West African States Official Journal dated 1999-12-01 volume 37 (17.1Â MB, PDF)