The Global Circularity Protocol for Business (GCP)

Co-developed by WBCSD and One Planet Network with input from over 150 experts across 80 organisations, the Global Circularity Protocol for Business (GCP) provides a practical, global framework for measuring, managing, improving, and communicating an organisation's circular performance, using standardised steps and metrics to drive credible, scalable impact across value chains. The GCP is built on WBCSD’s Circular Transition Indicators (CTI) and aligned with GRI, ISO 59020, ESRS, IFRS S1/S2, and the GHG Protocol to ensure consistency across sustainability reporting.

Version 1.0 provides a step-by-step application journey for users, and enables a progressive approach that allows organisations to evolve through increasing levers of maturity in their circular performance assessment. It also provides core concepts, methodologies, and indicators that can help your organisation to start assessing and improving circular performance with clarity, transparency, and confidence, such as tracking material flows; assessing impacts across climate, nature, equity and business performance; and communicating results through comparable, decision-useful information.