Which NIMS structure makes cooperative multi-agency decisions?

The correct answer is the structure that enables cooperative multi-agency decisions, which is the MAC Groups, or Multi-Agency Coordination Groups. These groups are essential in the NIMS framework as they facilitate collaboration and coordination among various agencies and organizations involved in emergency management. They bring together key decision-makers from various jurisdictions and organizational levels to ensure that resource allocation, incident priorities, and strategies are formulated cooperatively and effectively.

MAC Groups work to enhance communication, establish priorities, and make strategic decisions that guide the response and recovery efforts at multiple levels during an incident. This is particularly important in complex emergencies where multiple agencies must coordinate their actions for a successful response.

While other options play important roles in the NIMS structure, they do not specifically focus on cooperative decision-making across multiple agencies. For example, the Joint Information Center primarily handles communication and public information dissemination; the Operational Coordination Group focuses on executing incident management; and Unified Command is designed for managing incidents involving multiple agencies but does not inherently entail broad decision-making across different organizational lines like MAC Groups do.