US flag signifying that this is a United States Federal Government website   Official website of the Department of Homeland Security

Homeland Security

First responders


The National Conversation onDHS S&T National Conversation Logo Homeland Security Technology is i


RDP's capabilities represent the breadth of services provided by each office within the RDP Group and are the distinct functional elements performed to achieve the RDP goal. Each capability illustrates the cross-cutting functions of the RDP offices.

Emergency Services Sector

Emergency Services Sector

The Department of Homeland Security is designated as the Sector-Specific Agency for the Emergency Services Sector. A system of prevention, preparedness, response, and recovery elements, the Emergency Services Sector represents the nation's first line of defense in the prevention and mitigation of risk from terrorist attacks, man-made incidents, and natural disasters.


Cover for the Mutli-Jurisdiction Improvised Explosive Device Security Planning Workshop Situation ManualThe Multi-Jurisdiction Improv

Additional ISC Resources

Superseded Products

  • December 2013/8th Edition - Design-Basis Threat (FOUO). Superseded/September 2014.
  • March 2013/7th Edition - Design-Basis Threat (FOUO).
Several different pamphlets and books on a table

Chemical Sector Resources

The Chemical Sector-Specific Agency has the responsibility to provide institutional knowledge and specialized expertise in order to collaboratively develop, coordinate, and implement voluntary programs designed to improve security and resilience within the Chemical Sector.

Global Nuclear Detection Architecture

The Global Nuclear Detection Architecture is a framework for detecting (through technical and non-technical means), analyzing, and reporting on nuclear and other radioactive materials that are out of regulatory control. 

2014 Nuclear Security Summit

On March 24-25, 2014, President Obama joined 52 world leaders and four international organizations in The Hague, Netherlands for the third Nuclear Security Summit, aimed at preventing nuclear terrorism around the globe. The Hague Summit built upon the accomplishments of the two previous Nuclear Security Summits in 2010 and 2012 and focused on three main goals: reducing the amount of dangerous nuclear material in the world; improving the security of all nuclear material and radioactive sources; and improving international cooperation.


Subscribe to First responders
Back to Top