Impact materiality and determining material topics

GRI 3 turns impact evidence into a defended topic list. This pillar runs the sequence: stating an impact, telling a genuine positive impact from a reduced negative one, judging severity and likelihood, approving the cut-off, then selecting the Sector and Topic Standard disclosures that follow.

Published passport

Current as at 10 August 2026

Reviewed by Dr Ross KurinkoLinkedIn Strategic ESG Advisor · IFRS S1 & S2 / GRI / ESRS expert GRI Certified Global Trainer · PhD, University of Cambridge · ESG-AI expert 15+ years on FTSE 100 & Fortune Global 500 disclosures Canary Wharf, London LRA educational guidance · Not issued or endorsed by GRI

Edition written against

—

Published

10 Aug 2026

Knowledge Hub guide

Last reviewed

10 Aug 2026

Level 2

Articles in this pillar

Positive vs Negative Impacts in GRI Reporting: What Counts and How to Evidence It

How to distinguish genuine positive impact, reduction of negative impact, outputs and unsupported benefit claims

Comparison · 10 min GRI Materiality Thresholds: How to Set, Approve and Defend the Cut-Off

A practitioner guide to threshold design, calibration, sensitivity testing, near-cut-off decisions and governance approval.

Decision guide · 13 min Scale, Scope and Irremediable Character: How to Assess Severity under GRI

A practical severity model with worked environmental, workforce, community and product examples, scoring anchors and reviewer questions.

Decision guide · 11 min Actual vs Potential Impacts under GRI: Definitions, Examples and Assessment Logic

A decision guide for classifying impacts and using incidents, near misses, controls, exposure data and value-chain evidence correctly.

Comparison · 11 min GRI Sector Standards: Applicability, Requirements and Common Mistakes

How to determine which Sector Standards apply, preserve the organisation's own impact assessment and manage the special Content Index obligations

Decision guide · 11 min How to Select GRI Topic Standards and Relevant Disclosures

A practical decision method for moving from a material topic to the disclosures that genuinely explain the organisation's impacts

Decision guide · 10 min

✓ LRA AI Assistant · Human-in-the-loop

Ask about this guide

It answers from this page, and reaches into the linked disclosure cards when your question is about the standard itself. Your first two answers are free without signing in.

Try

2 free answers Automated · the LRA team is one click away

Go deeper · GRI

GRI Standards Certified Training

A full reporting cycle with a mentor: impact inventory, threshold, Topic Standard selection, Content Index and assurance readiness.

Available as Guided Flex, Live Cohort, 1:1 Expert Mentorship or Corporate Programme.

See course formats

/en/knowledge-hub/disclosure-guides/gri/gri-impact-materiality/