What is cross-regulatory evidence reuse?
Cross-regulatory evidence reuse means that a single evidence artefact — a risk assessment, a TOM profile, a vendor security review, a data governance record — can serve obligations across multiple regulatory frameworks without duplication.
When an AI system processes personal data on critical infrastructure, the same evidence may support AI Act data governance (Art. 10), GDPR processing documentation (Art. 30), and NIS2 security measures (Art. 21). Reuse eliminates redundant work, ensures consistency, and creates a unified evidence layer.
Key points
- Evidence reuse is not copy-pasting. It means one governed evidence artefact is structurally linked to obligations from multiple frameworks.
- Reuse ensures consistency: when the evidence is updated, every linked obligation sees the update. Duplicate evidence across silos can drift into inconsistency.
- Not all evidence is reusable. A DPIA serves GDPR but not AI Act risk management. An AI screening result serves the AI Act but not NIS2 incident documentation. Reuse must be precise.
- Evidence reuse reduces the total compliance effort significantly — especially for organisations with hundreds of systems subject to multiple regulations.
Why it matters
Organisations managing AI Act, GDPR, and NIS2 separately often create three copies of overlapping evidence — maintained by three different teams, in three different tools, with three different update cycles. This is expensive, error-prone, and structurally fragile. Cross-regulatory evidence reuse turns this into a single evidence layer with multiple regulatory connections.
How EAB approaches this
EAB's unified evidence layer connects to obligations across all three frameworks. TOM Profiles serve both GDPR and NIS2 requirements. Vendor Governance covers GDPR processor obligations and AI Act provider documentation. The GDPR–AI Act Bridge explicitly manages the intersection.