The Head of the Main Reading Room (MRR) serves as the Division's liaison for general reference policy and coordinates collection development for both the general collections and the MRR reference collections in the humanities and social sciences. In addition the supervisor serves as liaison for reading room security for the Division. The Head of the Main Reading Room and the Coordinator of Public Services for the Main Reading Room are responsible for the daily operation of the reading room and the administration of reference and reader services to Library patrons and to researchers who are assigned research facilities at the Library of Congress.