Which directive requires the use of the National Incident Management System (NIMS)?

The correct answer is the directive that emphasizes the implementation of the National Incident Management System (NIMS) as a key framework for managing incidents effectively across different levels of government and various agencies. This directive was established to ensure that responders from multiple jurisdictions can work together seamlessly during emergencies, fostering a coordinated response.

Presidential Directive 5 specifically mandates the use of NIMS for all federal agencies and encourages state and local governments to adopt the system as well. This uniformity is crucial during incidents requiring multi-agency coordination, ensuring clarity in command structures, communication, and resource sharing.

The other options, while relevant to emergency management and national policy, do not specifically address the requirement for adopting NIMS as comprehensively as Presidential Directive 5 does. This distinction is key in understanding the overarching framework that NIMS provides for incident management across all levels of response.