Which document delineates the responsibilities of Defense Coordinating Officers during domestic emergencies?

The National Response Framework is the correct answer because it provides a comprehensive overview of the roles and responsibilities of various federal, state, local, and tribal agencies during domestic emergencies. It establishes the guiding principles for preparing for and responding to incidents, emphasizing the need for coordination among multiple agencies, including the military. Within this framework, the responsibilities of Defense Coordinating Officers in domestic emergencies are specifically outlined, highlighting their role in supporting civil authorities and enhancing the effectiveness of the overall response efforts.

In contrast, while the Unified Command Plan focuses on military operations and resource allocation, it does not specifically address domestic emergency response roles. The Defense Support of Civil Authorities Handbook provides additional guidelines and procedures but is subordinate to the overarching principles set forth in the National Response Framework. Title 10 USC primarily deals with the legal foundations and authorities governing military operations and reserves, not the operational coordination during domestic emergencies.