Measures taken by companies to monitor and improve working conditions and environmental performance in their supply chains have taken many forms. A great number of voluntary private standards have emerged alongside ethical sourcing policies, leading to a multiplication of approaches. To help navigate through all these and choose the right approach for social and environmental compliance management, multinationals came together to create the Global Social Compliance Programme (GSCP). GSCP has developed a holistic reference framework demonstrating good social and environmental practices to define “what good looks like” for sustainable supply chain management and allow companies, systems and standards to converge towards harmonized best practice. These tools have been integrated into a benchmarking platform, the Equivalence Process, which makes it easy for companies, standards and supply chain schemes to assess themselves against best practices. This benchmarking process is key in driving continuous improvement for all supply chain actors, but also allows for greater transparency and wider acceptance and recognition of sustainability standards.