IPCC Guidelines for National Greenhouse Gas Inventories, published in 2006. Provides comprehensive and detailed methodologies for GHG estimation, management and reporting for all sectors. 2006 IPCC Guidelines for National Greenhouse Gas Inventories (ipcc-nggip.iges.or.jp)
2019 Refinement to the 2006 IPCC Guidelines for National Greenhouse Gas Inventories. 2019 Refinement to the 2006 IPCC Guidelines for National Greenhouse Gas Inventories (ipcc.ch)
GHG Protocol for Cities. The recognised and accepted international standard for GHG inventories. This standard is applicable to all community-scale GHG inventories, not only cities. GHG Protocol for Community-Scale GHG Inventories (ghgprotocol.org)
GHG Protocol guidance for assessing the benefits from GHG mitigation projects. Project Protocol (ghgprotocol.org)
City Inventory Reporting and Information System (CIRIS). Spreadsheet based reporting and monitoring system, suitable for community scale GHG inventories. CIRIS (resourcecentre.c40.org)
GHG Protocol standard for product life cycle GHG accounting and reporting. Product Standard (ghgprotocol.org)
GHG Protocol guidance for Scope 2 emission accounting and reporting. Provides a standard for assessing emissions that are purchased or acquired by a community or company (Scope 2). Scope 2 Guidance (ghgprotocol.org)
GHG Protocol Standard for Scope 3 assessing and reporting. Provides guidance for accounting for external emissions which are derived from community or company activity (Scope 3). Scope 3 Standard (ghgprotocol.org)
ISO 14000-series. International Standards for Organisational GHG and environmental management, calculation, reporting and verification.
ISO 14001 | Environmental Management (iso.org)
ISO 14064-1 | Organisational GHG Quantification and Reporting (iso.org)
ISO 14064-2 | Project level GHG Quantification and Reporting (iso.org)