Common triggers
New obligation
A reporting tier, customer or lender requirement applies.
Weak data
Definitions, evidence or controls are inconsistent.
Climate depth
Scenario, Scope 3 or financial-effects work exceeds internal capability.
Board decision
Management needs a defensible prioritisation or roadmap.
Assurance
Independent readiness or assurance is required.
Capacity
A fixed deadline creates a temporary delivery gap.
Do not outsource accountability
External advisers can provide methods, analysis, challenge and project management. Management still owns decisions, data, controls, public claims and implementation. Build the project around knowledge transfer and named internal owners.
Official sources used for this guide
Source position reviewed 2 August 2026. Always confirm the latest rule, standard and implementation guidance for your organisation.
