If there is a vacancy in the ORC (Operator Responsible Charge) or back-up ORC, the system owner must designate a new ORC within how many days?

• A. 60 Days
• B. 90 Days
• C. 180 Days
• D. 120 Days

Answer: (D)

This item tests the required timeframe for replacing an Operator Responsible Charge when a vacancy occurs. When the ORC or the backup ORC position is vacant, the system owner must designate a new ORC within 120 days. This deadline ensures there is a qualified, licensed operator in charge to maintain continuous regulatory compliance, proper operation, and timely reporting. The period is long enough to allow finding a suitable candidate, verifying qualifications, and completing any necessary licensure steps, while still preventing an extended gap in leadership and oversight. Typically, the replacement should be officially designated in writing and any relevant regulatory notifications updated to reflect the new ORC.