Prof. Acar has been active in the international women's human rights and gender equality arena, either as an independent expert or representing Turkey in global and regional events. She has taken part in the negotiations, drafting and/or monitoring the implementation of several fundamental international instruments on women's rights and gender equality (CEDAW, Beijing Platform for Action, CEDAW Optional Protocol, Istanbul Convention). She has organized and carried out 'trainings' on women's rights and gender equality in many countries. She is a former Chairperson and current member of the UN Committee on the Elimination of Discrimination Against Women (CEDAW).