U.S. flag

An official website of the United States government

Government Website

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Safely connect using HTTPS

Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

  1. Home
  2. Publications Library
  3. Science and Technology Collection

Science and Technology Collection

The DHS Science and Technology Directorate (S&T) is the Department’s primary research and development arm and manages science and technology research, from development through transition, for the Department's operational components and first responders.

  • P25 CAP Baseline Laboratory Requirements

    This Compliance Assessment Bulletin identifies accreditation and recognition requirements for becoming a DHS-recognized laboratory for P25 CAP testing.

  • P25 CAP Laboratory Equipment Requirements

    This Compliance Assessment Bulletin identifies several basic personnel, facility and test tool requirements for becoming a DHS-recognized laboratory for P25 CAP testing.

  • Countering Violent Extremism: Diversion Program—Assessment Tools to Support Secondary and Tertiary Intervention for Violent Extremism Report

    Countering Violent Extremism: Diversion Program—Assessment Tools to Support Secondary and Tertiary Intervention for Violent Extremism Report

  • P25 CAP Accreditation Body Authorization Conditions and Criteria Agreement

    This Compliance Assessment Bulletin identifies conditions and criteria for DHS authorization of accreditation bodies to provide accreditation to P25 CAP laboratories.

  • P25 CAP Minimum Feature Requirements

    This Compliance Assessment Bulletin defines the minimum interoperability features and capabilities that are required for P25 subscriber and repeater equipment that are capable of conventional operation to be eligible to be considered P25 CAP compliant.

  • P25 Compliance Assessment Program Encryption Requirements

    This Compliance Assessment Bulletin addresses DHS taking action to stop the practice of manufacturers provided subscriber units with a non-P25 standard encryption without also including P25 standard AES 256 encryption. DHS also asks that manufacturers provide a path for public safety users to add AES 256 to fielded P25 subscriber units that are only equipped with non-P25 standard encryption.

  • Managing Emergency Response with Science and Technology

     The following is a select sampling of activities showcasing S&T's work in support of emergency management.

  • Supporting First Responders Through Science and Technology

    S&T works closely with first responders to develop technologies and tools that enhance their safety and increase their operational effectiveness. Our new report trilogy documents available resources and in-process R&D for all responder disciplines.

  • Countering Unmanned Aircraft Systems Fact Sheet

    The Science and Technology Directorate's (S&T's) Counter Unmanned Aircraft System (CUAS) Program assesses available CUAS solutions and guides the development of new capabilities to support acquisition, rapid deployment, and utilization decisions based on the needs and requirements of authorized Department of Homeland Security components such as Customs and Border Protection, Secret Service, Coast Guard, and the Federal Protective Service.

  • Ammonia Port Preparedness and Emergency Response Fact Sheet

    AmPPER will enable the Department of Homeland Security Science and Technology Directorate to provide critical information on ammonia storage and its potential impact on ports and surrounding communities. Through data-driven mitigation and resilience recommendations, we empower the U.S. Coast Guard, FEMA, and emergency response communities to enhance preparedness.