Which directive emphasizes the need for a unified command in the context of incident management?

Homeland Security Presidential Directive 5 (HSPD-5) is pivotal in emphasizing the need for unified command during incident management. This directive was issued to enhance the federal government's ability to manage domestic incidents effectively. It establishes a comprehensive management system for responding to incidents that require federal involvement and outlines a standardized framework to guide how the federal government coordinates its response with state and local authorities.

A key aspect of HSPD-5 is the implementation of the National Incident Management System (NIMS), which promotes a unified command approach. This approach ensures that all agencies and organizations involved in incident response work together seamlessly, regardless of their size or jurisdiction. By stressing the importance of a unified command, HSPD-5 seeks to eliminate confusion and ensure that resources are utilized efficiently during emergencies.

In contrast, other directives and acts mentioned do not specifically focus on the structured approach to incident management in the way that HSPD-5 does. For instance, while Homeland Security Presidential Directive 8 focuses on national preparedness, it does not emphasize unified command as a central theme. The Homeland Security Act of 2002 primarily established the framework for the Department of Homeland Security, and Federal Preparedness Circular 65 offers guidance on developing a Comprehensive Emergency Management Plan, but does not specifically address