Each Transmission Operator shall participate in its Reliability Coordinator's restoration drills, exercises, or simulations _____.

• A. Always
• B. As requested by its Reliability Coordinator
• C. At least once a year
• D. Never

Answer: (B)

Participation is driven by the Reliability Coordinator’s needs. The RC coordinates restoration planning and testing across the system, so Transmission Operators join when the RC requests to practice restoration procedures, communications, and coordination. This flexible, request-based approach ensures operators are engaged when it matters for real-world recovery scenarios, without locking in a fixed schedule. Fixed options like always or at least once a year impose unnecessary rigidity and time-based requirements, while never would undermine coordination and readiness.