Who is responsible for developing partnerships for unaffiliated critical infrastructure sectors?

The responsibility for developing partnerships for unaffiliated critical infrastructure sectors falls to the Department of Homeland Security (DHS). This agency plays a vital role in protecting the nation's critical infrastructure, which includes a wide array of sectors such as shipping, healthcare, information technology, and energy supply. The DHS works to foster collaboration among various governmental and non-governmental organizations to enhance the resilience of the critical infrastructure against risks, including natural disasters and cyber threats.

DHS integrates various components and functions, such as the Federal Emergency Management Agency (FEMA) and the Cybersecurity and Infrastructure Security Agency (CISA), to address both physical and cyber vulnerabilities. By creating and nurturing partnerships across different sectors, DHS aims to improve situational awareness, share best practices, and enhance overall security and resilience.

In the context of the other choices, while other agencies like CISA are involved in specific aspects of cybersecurity and infrastructure protection, DHS has the broad mandate to oversee and ensure the partnership and collaboration across the entirety of critical infrastructure sectors.