; and (B) has been completed on or before the date of enactment of this Act, the Secretary shall update the plan incorporating the provisions of this Act. 3. Reconstruction Era National Historic Network (a) In general The Secretary shall— (1) establish, within the National Park Service, a program to be known as the Reconstruction Era National Historic Network ; (2) not later than 1 year after the date of the enactment of this Act, solicit proposals from sites interested in being a part of the Network; and (3) administer the Network through the Reconstruction Era National Historical Park. (b) Duties of Secretary In carrying out the Network, the Secretary shall— (1) review studies and reports to complement and not duplicate studies of the historical importance of Reconstruction Era that may be underway or completed, such as the National Park Service Reconstruction Handbook and the National Park Service Theme Study on Reconstruction; (2) produce and disseminate appropriate educational and promotional materials relating to the Reconstruction Era and the sites in the network, such as handbooks, maps, interpretive guides, or electronic information; (3) enter into appropriate cooperative agreements and memoranda of understanding to provide technical assistance; (4) (A) create and adopt an official, uniform symbol or device for the Network; and (B) issue regulations for the use of the symbol or device adopted under subparagraph (A); and (5) conduct research relating to Reconstruction and the Reconstruction Era. (c) Elements The Network shall encompass the following elements— (1) all units and programs of the National Park Service that are determined by the Secretary to relate to the Reconstruction Era; (2) other Federal, State, local, and privately owned properties that the Secretary determines— (A) relate to the Reconstruction Era; and (B) are included in, or determined by the Secretary to be eligible for inclusion in, the National Register of Historic Places