Skip to main content
U.S. flag

An official website of the United States government

Here’s how you know

Dot gov

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

HTTPS

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

Emergency

This is not the current EPA website. To navigate to the current EPA website, please go to www.epa.gov. This website is historical material reflecting the EPA website as it existed on January 19, 2025. This website is no longer updated and links to external websites and some internal pages may not work. More information »

    • Environmental Topics
    • Air
    • Bed Bugs
    • Cancer
    • Chemicals, Toxics, and Pesticide
    • Climate Change
    • Emergency Response
    • Environmental Information by Location
    • Environmental Justice
    • Greener Living
    • Health
    • Land, Waste, and Cleanup
    • Lead
    • Mold
    • Radon
    • Research
    • Science Topics
    • Water Topics
    • A-Z Topic Index
    • Laws & Regulations
    • By Business Sector
    • By Topic
    • Compliance
    • Enforcement
    • Laws and Executive Orders
    • Regulations
    • Report a Violation
    • Environmental Violations
    • Fraud, Waste or Abuse
    • About EPA
    • Our Mission and What We Do
    • Headquarters Offices
    • Regional Offices
    • Labs and Research Centers
    • Planning, Budget, and Results
    • Organization Chart
    • EPA History
    • Staff Directory

Breadcrumb

  1. Home
  2. About EPA

About the Homeland Security Research Program

Strategic Research Action Plan 2023-2026
ORD's Homeland Security FY23-26 StRAP cover

HS StRAP for Fiscal Years 2023-2026

What We Do

EPA’s Homeland Security (HS) Research Program addresses science gaps related to oil spill response, protecting water systems, and cleanup of wide areas contaminated with high-priority Homeland Security Chemical, Biological, Radiological, and Nuclear agents. This includes contamination incidents due to natural disasters, pathogens that cause communicable diseases, covert release of chemicals, and agricultural incidents with animal and crop diseases. 

Visit our research pages: Emergency Response Research

Directors

Shawn Ryan, National Program Director

  • Phone: 919-541-0699
  • Email: ryan.shawn@epa.gov

Sang Don Lee, Principal Associate National Program Director

  • Phone: 919-541-4531
  • Email: lee.sangdon@epa.gov

About EPA

  • Our Mission and What We Do
  • EPA Administrator
  • Headquarters Offices
  • Regional Offices
  • Labs and Research Centers
  • EPA Organization Chart
  • EPA History
  • Staff Directory
Contact EPA
Contact EPA to ask a question, provide feedback, or report a problem.
Last updated on November 15, 2024
  • Assistance
  • Ayuda
  • Arabic
  • Chinese (simplified)
  • Chinese (traditional)
  • Aide
  • Asistans
  • Korean
  • Assistência
  • Russian
  • Tulong
  • Vietnamese
United States Environmental Protection Agency

Discover.

  • Accessibility Statement
  • Budget & Performance
  • Contracting
  • EPA www Web Snapshot
  • Grants
  • No FEAR Act Data
  • Plain Writing
  • Privacy
  • Privacy and Security Notice

Connect.

  • Data
  • Inspector General
  • Jobs
  • Newsroom
  • Regulations.gov
  • Subscribe
  • USA.gov
  • White House

Ask.

  • Contact EPA
  • EPA Disclaimers
  • Hotlines
  • FOIA Requests
  • Frequent Questions

Follow.