Within how many calendar days must the update and approval of the backup Operating Plan occur after changes described in Requirement R1?

• A. 30 calendar days
• B. 60 calendar days
• C. 90 calendar days
• D. 120 calendar days

Answer: (B)

When changes described in R1 occur, the backup Operating Plan must be updated and approved within 60 calendar days. This timeframe ensures the plan stays current with new conditions, resources, and procedures that could affect reliability, while still allowing enough time for careful drafting, stakeholder coordination, and formal approvals. If the window were too short, updates might be rushed and incomplete; if it were too long, the plan could sit with outdated guidance, increasing risk to operations. The 60-day period strikes a balance, keeping the plan aligned with real-world changes without delaying implementation.