While a growing number of websites, white papers, and technical notes cover Article 6 of the Paris Agreement, this Guide is a compact, practical effort to bring together the essentials together in one place. The Guide has been developed as a practical guide for parliamentarians and policymakers navigating international carbon markets. It addresses a wide spectrum of stakeholders—from those just beginning to engage with Article 6, to countries already leading implementation efforts such as Ghana, Indonesia, and Switzerland.

The content reflects the state of negotiations, national experiences, and institutional models as of mid-2025. Given the rapidly evolving landscape, readers should view this Guide as a current snapshot—offering structured insights, tested practices, and guiding questions that remain useful even as formal rules and systems continue to mature.

It has been informed by practitioner feedback, country case studies, and on-ground consultations with experts and government representatives involved in the development of Article 6 strategies. Readers are encouraged to consult the latest UNFCCC decisions, national guidance, and registry developments when applying these insights in practice.