Sector-Specific Agency (SSA)
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The US Presidential Policy Directive 21 (PPD-21): Critical Infrastructure Security and Resilience [1] designated a Federal department or agency with responsibility for providing institutional knowledge and specialized expertise as well as leading, facilitating, or supporting the security and resilience programs and associated activities of its designated Critical Infrastructure Sector in the All Hazards environment.
In the table below, the appointed SSAs are presented [2]:
| SSA | Sector |
|---|---|
| The Department of Homeland Security | Chemical Sector |
| The Department of Homeland Security | Commercial Facilities Sector |
| The Department of Homeland Security | Communications Sector |
| The Department of Homeland Security | Critical Manufacturing Sector |
| Department of Homeland Security | Dams Sector |
| Department of Defense | Defense Industrial Base Secto |
| Department of Homeland Security | Emergency Services Sector |
| Department of Energy | Energy Sector |
| Department of Treasury | Financial Services Sector |
| Department of Agriculture, Department of Health and Human Services | Food and Agriculture Sector |
| Department of Homeland Security, General Services Administration | Government Facilities Sector |
| Department of Health and Human Services | Healthcare and Public Health Sector |
| Department of Homeland Security | Information Technology Sector |
| Department of Homeland Security | Nuclear Reactors, Materials, and Waste Sector |
| Department of Homeland Security, Department of Transportation | Transportation Systems Sector |
| Environmental Protection Agency | Water and Wastewater Systems Sector |
See also
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References
