the Center and lead field coordinators under paragraph (2). (4) Incident Action Planning Process In responding to the declaration of an extraordinary migration event by the President, the Southwest Border Coordination Center shall use an Incident Action Planning Process to address emerging resource requirements related to such event. (d) Formation of migration response teams Upon the declaration of an extraordinary migration event by the President, the Federal coordinating officer appointed pursuant to subsection (b) shall establish migration response teams to be deployed to assist the Southwest Border Coordination Cell under subsection (c), including relating to the following: (1) Coordinating the construction of specialized migration processing facilities with staff from other Federal departments and agencies, State and local governments, and nongovernmental organizations to assist with the humanitarian needs of arriving migrants. (2) Working with U.S. Customs and Border Protection, the Federal Emergency Management Agency, the Department of Health and Human Services, and other appropriate organizations to establish temporary holding facilities for migrants. (3) Coordinating with the National Disaster Medical System of the Department of Health and Human Services, and, as appropriate, FEMA Corps, the private sector, and the National Guard, to ensure such facilities are staffed with health professionals who are able to provide medical and mental health assistance and other humanitarian support to such migrants. (e) Formation of processing teams Upon declaration of an extraordinary migration event by the President, the Secretary of Homeland Security may take such actions as may be necessary to process in a timely manner individuals arriving at the border, including by— (1) reassigning United States Citizenship and Immigration Services asylum officers and interpreters to U.S. Customs and Border Protection border facilities