Agenda item 55: Elimination of all forms of racial discrimination (A/7649 and Add.1, A/7667, A/7688, A/C.3/L.1733, A/C.3/L.1738 and Add.1): (a) Implementation of the United Nations Declaration on the Elimination of All Forms of Racial Discrimination; (b) Status of the International Convention on the Elimination of All Forms of Racial Discrimination: report of the Secretary-General; (c) Programme for the celebration in 1971 of the International Year for Action to Combat Racism and Racial Discrimination: report of the Secretary-General. Agenda item 56: Measures to be taken against nazism and racial intolerance: report of the Secretary-General (A/7603, chap. IX, sect. C; A/7581/Rev.1, A/7683, A/C.3/617, A/C.3/618). Agenda item 57: Question of the violation of human rights and fundamental freedoms, including policies of racial discrimination and segregation and of apartheid, in all countries, with particular reference to colonial and other dependent countries and territories (A/7603, chap. IX, sect. A; A/7660, A/C.3/L.1659, E/CN.4/950, E/CN.984 and Add.1-19): (a) Measures for effectively combating racial discrimination and the policies of apartheid and segregation in southern Africa: report of the Secretary-General; (b) Report of the Ad Hoc Working Group of Experts on the treatment of political prisoners in South Africa: report of the Secretary-General.