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Science and Technology

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.

  • FINAL Environmental Assessment for Counter-Unmanned Aircraft Systems Testing at Multiple Sites

    The U.S. Department of Homeland Security (DHS) Science & Technology Directorate (S&T) proposes to test C-UAS capabilities to detect, track, identify, and mitigate (DTI-M) small unmanned aircraft systems (sUAS). Five geographical testing areas are being considered in this Environmental Assessment (EA): Niagara Falls and Buffalo, New York; the greater Philadelphia, Pennsylvania area; Northeastern West Virginia; National Capital Region (NCR), Washington, D.C.; and Richmond, Virginia.

  • Law Enforcement Resources

    DHS is fundamentally a department of partnerships. We are committed to ensuring you have the tools, resources, and support you need to continue doing so successfully. This guide highlights many of the resources available to law enforcement partners, including training and grant opportunities, to increase nationwide resilience to evolving threats.

  • Final Environmental Assessment of Proposed Tracer Particle and Gas Releases and Finding of No Significant Impact

    The United States (U.S.) Department of Homeland Security (DHS) Science and Technology Directorate (S&T), in partnership with the Metropolitan Transportation Authority (MTA) and other stakeholders in New York City (NYC), is proposing to conduct testing events to improve resiliency of urban areas and transportation systems against chemical or biological terrorist attacks (Proposed Action).

  • Patents and Pending Patents

    In honor of International Women’s Day on March 8, 2021, we wanted to highlight the women inventors working for DHS, both federal employees and contractors. To date, DHS has a total of eight women inventors who hold six patents. In addition, more than 20 inventions by DHS women are currently awaiting approval by the U.S. Patent & Trademark Office (USPTO).

  • Environmental Assessment of the Joint Unmanned Systems Testing in Collaborative Environment (Project JUSTICE)

    The U.S. Department of Homeland Security Science (DHS) Technology (S&T) Directorate hereby gives Notice of the Availability for the draft Environmental Assessment to evaluate the potential environmental impacts associated with the continued testing of unmanned aircraft systems (UAS) under the Joint Unmanned Systems Testing in Collaborative Environment (Project JUSTICE).

  • Environmental Assessment of Proposed NYC Simulant Particle Releases for the Viral Phenomenology Program

    The Department of Homeland Security (DHS) Science and Technology Directorate (S&T) plans to conduct a scientific study on aerosol behavior in New York City buses and subway trains. A special focus of the study will be tests of various methods to mitigate the potential spread of aerosols in buses and subway trains.

  • Road to Reopening: Recovery through Research Virtual Panel Discussion

    DHS Science & Technology (S&T) is partnering with state, local and industry innovators to help communities mitigate risks and respond to the compounding pressures of natural disasters and the pandemic.

  • DHS/S&T/PIA-038 Next Generation First Responder Apex Program

    The Department of Homeland Security (DHS) Science and Technology (S&T) Directorate established the Next Generation First Responder (NGFR) Apex Program (Program), a research, development, testing, evaluation, (RDT&E) and standards program, adapting existing technologies, developing new capabilities, and working with the private sector to enhance capabilities for first responders across the nation. More than 60 individual RDT&E projects “align” to the NGFR Apex Program. Program activities include technology integration demonstrations and/or operational experimentations (OpEx) and the development of knowledge products, such as facts sheets and case studies. DHS S&T is conducting the NGFR Apex Program Privacy Impact Assessment (PIA) because the Program involves the use of personally identifiable information (PII) as well as technologies that raise potential privacy concerns.

  • S&T CAB ISSI/CSSI Interoperability Testing Requirements and SDOC

    The Department of Homeland Security (DHS) Science and Technology Directorate (S&T) continues its efforts to streamline the Supplier’s Declaration of Compliance (SDOC) and Summary Test Report (STR) templates in an effort to make P25 CAP documentation more useful to end users, as well as reduce the burden on manufacturers and P25 CAP recognized laboratories. DHS will now open a public comment period to review the P25 Compliance Assessment Bulletin (CAB) addressing Baseline Inter-RF Sub-System Interface and Console Sub-System Interface Interoperability Testing Requirements, as well as the latest version of the SDOC template.

  • S&T The Center for Awareness and Localization of Explosives-Related Threats

    ALERT conducts transformational research, technology, and educational development to characterize, detect, mitigate, and respond to explosives-related threats facing the country and the world.