Indigenous Peoples' and Community Conserved Territories and Areas (ICCAs) extend over substantial parts of the earth, equalling or perhaps surpassing officially designated protected areas (though poorly documented), and encompassing crucial ecological, cultural, social, and economic values. They are therefore prime candidates to be 'no-go' areas for destructive development projects and processes, from whom they continue to face serious threat in many countries. However, any no-go status needs to be with the prior informed consent of the relevant people/community, and must not undermine their own rights of customary use and governance.