Which of these is NOT a tool that you would need at the incident?

The correct answer is the Exercise Plan. In the context of incident management, tools used at an incident site are focused on immediate operational needs and decision-making. An Action Plan outlines the objectives and tasks for incident response, while the Incident Command System provides the framework for managing and coordinating resources effectively during an incident. A Resource List is crucial for identifying and deploying available resources needed to respond to the incident.

In contrast, an Exercise Plan is primarily designed for training and preparedness prior to an incident. It is used to simulate scenarios for practice and evaluation but does not have direct application during an active incident response. Therefore, while all the other tools are integral for managing and directing on-scene operations, the Exercise Plan is not necessary at the time of an incident itself.