One of the main differences between the GHG Protocol and the ISO 14064 is their scope and applicability. The GHG Protocol is more comprehensive and detailed, covering a wider range of sectors, sources, and activities, and providing more guidance and tools for GHG accounting and management. The ISO 14064 is more generic and concise, focusing on the requirements and specifications for GHG quantification, monitoring, reporting, and verification, and leaving more room for interpretation and customization. Another difference is their recognition and acceptance. The GHG Protocol is more widely used and referenced by voluntary and mandatory reporting programs, initiatives, and platforms, such as the Carbon Disclosure Project (CDP), the Global Reporting Initiative (GRI), and the Science Based Targets initiative (SBTi). The ISO 14064 is more recognized and accepted by regulatory and accreditation bodies, such as the United Nations Framework Convention on Climate Change (UNFCCC), the Clean Development Mechanism (CDM), and the Verified Carbon Standard (VCS).