Working to empower people in the DC metropolitan area to
build a community free from public sexual harassment and assault.

What We Do

Founded in 2009 as Holla Back DC!, Collective Action for Safe Spaces (CASS) has evolved from a blog to a dynamic organization that mobilizes the community to end public sexual harassment and assault in the DC metropolitan area. It does this through both online and offline activism, including workshops, innovative direct services, policy advocacy, and community outreach. Currently volunteer-led and -run, CASS utilizes the creativity and energy of the DC community to further its mission and vision.


Meet the CASS Team and Board of Directors


Collective Action for Safe Spaces is a grassroots organization that works to empower people in the DC metropolitan area to build a community free from public sexual harassment and assault.



Collective Action for Safe Spaces strives for a community in which people of all backgrounds, gender expressions or identities, and experiences can feel safe occupying public spaces. In this community, individuals will hold themselves accountable to each other and to the community at-large for preventing public gender-based violence and fostering a safe and harassment-free environment free of the negative influences of power and control. Until we are able to achieve this, CASS wants every community member to feel safe and comfortable addressing public sexual harassment and assault, whether they witness or experience it.



We seek to honor and support survivors of public sexual harassment and assault while also challenging current institutional frameworks that diminish their voices or experiences. We believe in the power of community-driven, action-oriented solutions to spark the individual, community, and societal culture changes that will create a world free of public sexual harassment and assault.

CASS acknowledges that the criminal legal system perpetuates and inflicts structural and interpersonal violence against women and LGBTQGNC individuals, especially those who are people of color. For this reason, CASS does not support further criminalization of public sexual harassment and assault as a strategy to end public sexual violence, and encourages the community to look outside the criminal legal system to address the entrenched structural aspects of this violence. CASS also values the right of every survivor to choose the path that they feel will lead them to healing. In cases in which survivors choose to engage with the criminal legal system, CASS is committed to ensuring that its responses are survivor-centered and trauma-informed.