Decentralized forest management is criticized for not involving women in decision-making. The study explores what the introduction of affirmative policy in community forestry committees means for the participation of women in decision making in four cases in the middle hills of Nepal. The qualitative analysis of interviews and observations draws on feminist political ecology, a women’s participation typology, the critical mass theory and gender justice. The findings centre on the importance of electoral procedures, the role of authorities, the role of the familial context and whether and how women internalized and contested patriarchal norms. The women’s quota was found to have had as yet little impact on substantive participation, yet the enhanced exposure of female committee members to the discrepancy between the gender equality discourse introduced in community forestry and the persistent male domination seemed to create, in a few women performing as critical actors, an enhanced awareness of male suppression; an awareness that is a prerequisite for contestation of those patriarchal norms denying women access to power over forest and, generally speaking, of gender injustice. This research reports examples of women, brought in the executive committees by the studied affirmative policies, successfully contesting traditional gender roles and gender injustice, negotiating for them and for the other women, a more effective and meaningful participation in the management of Community Forests.