NERC Reliability Standards Time Requirements

Proving timely action in audits relies on a documented, verifiable sequence of events that shows exactly when actions occurred. A complete incident chronology with corroborating data is the best artifact because it gathers all relevant timestamps from multiple sources—system logs, alerts, ticketing records, emails, and witness statements—and links them to specific actions and people. This creates a defendable timeline that demonstrates whether responses happened within required timeframes and how quickly containment, eradication, or recovery steps were carried out. The corroborating data across sources reduces ambiguity and strengthens the trustworthiness of the timing. Training records show that personnel were prepared, but they don’t prove what actually happened during a specific incident or whether actions occurred within the required windows. An inventory list documents assets, not the sequence or timing of incident responses. An executive summary provides a high-level recap but typically lacks the detailed, verifiable timing necessary to establish timely action.