; and (3) the long-term vulnerabilities faced by the Department, other Federal agencies, and critical infrastructure managers and owners. (c) Completion The Council shall complete the review by not later than the end of the 18-month period beginning on the date of enactment of this Act, except that the Secretary of Homeland Security may extend such period. (d) Report Upon the completion of the review, the Council shall submit to the Secretary a report on the findings of the review, including recommendations based on such findings. 11. Definitions For purposes of this Act: (1) All hazards The term all hazards means a threat or an incident, natural or manmade, that warrants action to protect life, property, the environment, and public health or safety, and to minimize disruptions of government, social, or economic activities. The term includes natural disasters, cyber incidents, industrial accidents, pandemics, acts of terrorism, sabotage, and destructive criminal activity targeting critical infrastructure. (2) Collaboration The term collaboration means the process of working together to achieve shared goals. (3) Critical infrastructure The term critical infrastructure means systems and assets, whether physical or virtual, so vital to the United States that the incapacity or destruction of such systems and assets would have a debilitating impact on security, national economic security, national public health or safety, or any combination of those matters. (4) Federal departments and agencies The term Federal departments and agencies means any authority of the United States that is an agency under section 3502(1) of title 44, United States Code, other than those considered to be independent regulatory agencies as defined in section 3502(5) of such title. (5) National essential functions The term national essential functions means that subset of Government functions that are necessary to lead and sustain the Nation during a catastrophic emergency. (6) Primary mission essential functions The term primary mission