Which of the following is NOT one of the emergency procedure levels?

The correct answer is that notifications are not one of the established emergency procedure levels in the context of PJM operations. Emergency procedure levels are officially defined to guide responses during various levels of system distress or operational challenges.

Advisory, alerts, and warnings represent progressive stages in the emergency protocol that indicate increasing severity of conditions that may affect the reliability of the electrical grid. An advisory informs stakeholders of potential issues, alerts signal more serious conditions that require heightened awareness, and warnings indicate immediate threats that necessitate urgent action to mitigate risks.

Notifications, while important in the broader context of communication and information dissemination, do not conform to the structured response categories that guide operational protocols in emergency situations. Thus, they do not serve as a recognized level of emergency procedure in the PJM framework.