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 Common Air Interface Testing Requirements

    This Compliance Assessment Bulletin lists test cases for the P25 Common Air Interface (CAI). Applicable test cases may include tests of features and options installed in the product contemplated for purchase.

  • P25 CAP Compliance Testing Rules

    This CAB provides rules for the application of the multiple P25 CAP Testing Requirements CABs.

  • P25 CAP Testing Requirements

    This Compliance Assessment Bulletin (CAB) provides guidance on testing to establish and retain P25 CAP equipment compliance, including referencing required retesting intervals and requirements for testing to the most current CABs.

  • P25 CAP Base Station Repeater SDOC Template

    P25 subscriber vendors must submit a Supplier's Declaration of Compliance (SDOC) to P25 CAP in order for the vendor's P25 equipment to be posted on the P25 CAP Approved (Grant-Eligible) Equipment webpage.

  • P25 CAP Subscriber SDOC Template

    P25 subscriber vendors must submit a Supplier's Declaration of Compliance (SDOC) to P25 CAP in order for the vendor's P25 equipment to be posted on the P25 CAP Approved (Grant-Eligible) Equipment webpage.

  • P25 CAP Supplier's Declaration of Compliance and Summary Test Report Requirements for Base Station Repeaters

    P25 subscriber vendors must submit a Supplier’s Declaration of Compliance (SDOC) and Summary Test Report (STR) to P25 CAP in order for the vendor’s P25 equipment to be posted on the P25 CAP Approved (Grant-Eligible) Equipment webpage.

  • P25 CAP Supplier's Declaration of Compliance and Summary Test Report Requirements for Subscriber Units

    P25 subscriber vendors must submit SDOCs and STRs to P25 CAP in order for the vendor’s P25 equipment to be posted on the P25 CAP Approved (Grant-Eligible) Equipment webpage.

  • Deployable Expedient Traffic Entry Regulator (DETER) Fact Sheet

    The Science and Technology Directorate is evaluating the Deployable Expedient Traffic Entry Regulator (DETER) barrier in realistic environments to identify operational recommendations and hardware adjustments to optimize use for DHS components. DETER is an innovative and versatile vehicle barrier that provides fast protection in multiple scenarios, making it a valuable system to be used in multi-domain operations.

  • Hydrogen Fuel Cell-Powered Emergency Relief Truck Fact Sheet and Video

    Through an interagency collaboration between the Department of Homeland Security (DHS) Science and Technology Directorate (S&T), the U.S. Department of Energy (DOE), the Department of Defense, and Cummins, Inc., an advanced hydrogen (H2) fuel cell truck prototype—known as H2@Rescue—is being developed and tested. 

  • DHS Innovation, Research & Development Strategic Plan, Fiscal Years 2024-2030

    The first-of-its-kind DHS Innovation, Research and Development Strategic Plan identifies ways to coordinate IRD investments to maximize impacts across our components and missions. The plan brings focus to our IRD portfolios by highlighting eight key, cross-cutting strategic priority research areas (SPRAs) that the Department will foster over the next seven fiscal years. These SPRAs will improve internal DHS collaboration, guide the resource allocation plan (RAP) development as part of the planning, programming, budgeting, and execution (PPBE) cycle for FY 2026-2030 and beyond, and serve as a demand signal to industry, interagency, academic, and international communities on future partnerships and collaborations.