When a significant incident occurs, what type of command is established if the incident is large or complex?

In the context of large or complex incidents, Unified Command is established to effectively manage the situation. This approach allows multiple agencies or jurisdictions to work together without losing their own authority or responsibility. Unified Command brings together representatives from various organizations involved in the incident response, ensuring a coordinated effort towards effective decision-making and resource allocation.

This structure is particularly beneficial in scenarios where multiple entities may need to respond, such as local, state, and federal agencies, or when private organizations are involved alongside public responders. It fosters collaboration and communication, streamlining operations and minimizing confusion that can arise in a multi-agency environment. The goal is to achieve a shared set of objectives and strategies for the response, promoting efficiency and effectiveness in addressing the incident's demands.

The other options, such as Single Command, Operational Command, and Joint Command, do not fit the criteria as effectively as Unified Command does in scenarios involving complex incidents with multiple response teams.