Author: Hanane Darhour & Drude Dahlerup | This article surveys the adoption and implementation of gender quotas in the Moroccan parliamentary elections of 2002, 2007, and 2011. Despite being effective in bringing a substantial number of women into parliament, the question should be asked— can gender quotas, once introduced, lead to more sustainable political representation for women? By introducing the concept of sustainable representation, defined as a durable, substantial political representation of women, this article points to the importance of studying how gender quotas may or may not alter some of the barriers which prevent women’s equal participation and representation.