This How-to Guide contributes to increasing knowledge and understanding of the practical measures that can be undertaken to meet good international industry practice, in conformance with the internationally recognised Hydropower Sustainability Tools (see Box 1). This suite of sustainability tools seeks to harmonise the understanding and promotion of sustainability in hydropower. This How-to-Guide can help developers and operators engage with Indigenous Peoples and ensure that their projects meet good industry practice. It expands upon the Hydropower Sustainability Good International Industry Practice Guidelines (HGIIP) and is designed to provide practical support for practitioners and stakeholders when managing Indigenous issues in planning, developing and operating projects.