This report reviews existing environmental, social and climate safeguard systems developed and adopted by multilateral and bilateral development agencies. The aim of the report is to assess the potential for the UK Department for International Development (DFID) to adopt or rely on these systems. This will help guide the application of DFID’s new SMART rules, which include a commitment to ensuring sustainability and resilience, and to avoid doing harm such as creating or exacerbating resource scarcity, climate change and/or environmental damage.