The objective of the report is to draw together what is known about NDAs in order to provide a resource to policy-makers in their deliberations about any future regulation of their use in the Irish context. The report examines experiences of NDA use, with a specific focus on cases of alleged sexual harassment or discrimination, in Ireland and a number of other jurisdictions including the UK, USA, Canada and Australia. The report, the first of its kind in an Irish context, presents a review of the literature, and thematic overview of the REU team’s engagement with informed stakeholders.