ISSB·Decision guide·Reporting boundaries
IFRS S2 Scope 3: How to Assess All 15 Categories and Improve Data Quality
IFRS S2 requires an entity to consider its entire upstream and downstream value chain and all 15 GHG Protocol Scope 3 categories, then disclose which categories are included in the Scope 3 measure. The inventory can and usually will use estimates.
Helps you decideWhich categories are included, how the value-chain boundary is set, what data is proportionate and how quality and limitations are disclosed.
Reviewed 10 Aug 2026 17 min Read the guide →
