PLCY's principal responsibilities are outlined in statue (National Defense Authorization Act for FY 2017):
- Lead, conduct, and coordinate Department-wide policy development and implementation and strategic planning
- Develop and coordinate policies to promote and ensure quality, consistency, and integration for the programs, components, offices, and activities across the Department
- Develop and coordinate strategic plans and long-term goals of the Department with risk-based analysis and planning to improve operational mission effectiveness, including consultation with the Secretary regarding the quadrennial homeland security review
- Manage Department leadership councils and provide analytics and support to such councils
- Mange international coordination and engagement for the Department
- Senior Official Performing the Duties of Under Secretary, Christopher Pratt
- Deputy Under Secretary, John Gountanis
- Chief of Staff, Jason Killmeyer
- Assistant Secretary, International Affairs, Simon Bland (A)
- Deputy Assistant Secretary, International Affairs, VACANT
- Deputy Assistant Secretary, Western Hemisphere, David Cloe
- Assistant Secretary, Counterterrorism, Threat Prevention, and Law Enforcement, VACANT
- Principal Deputy Assistant Secretary, Counterterrorism, Threat Prevention, and Law Enforcement, VACANT
- Deputy Assistant Secretary, Counter Terrorism, Julia Varvaro
- Deputy Assistant Secretary, Combatting Transnational Organized Crime, Eric Talbot
- Deputy Assistant Secretary, Screening and Vetting, Michael Scardaville
- Assistant Secretary, Border and Immigration Policy, Rory Burke (A)
- Deputy Assistant Secretary, Immigration Policy, Rory Burke
- Deputy Assistant Secretary, Border Policy, VACANT
- Deputy Assistant Secretary, Homeland Security Statistics, Marc Rosenblum
- Assistant Secretary, Trade and Economic Security, Joseph Alm (A)
- Deputy Assistant Secretary, Trade Policy, VACANT
- Deputy Assistant Secretary, Economic Security, Joseph Alm
- Assistant Secretary, Cyber, Infrastructure, Risk, and Resilience, VACANT
- Deputy Assistant Secretary, Infrastructure Policy, Thomas McDermott
- Deputy Assistant Secretary, Cyber Policy, Samantha Anderson
- Deputy Assistant Secretary, Strategic Initiatives, VACANT