; and (ii) are included in, or determined by the Secretary to be eligible for inclusion in, the National Register of Historic Places. (C) Other governmental and nongovernmental sites, facilities, and programs of an educational, research, or interpretive nature that are directly related to the Reconstruction Era. (4) Cooperative agreements and memoranda of understanding To achieve the purposes of this section and to ensure effective coordination of the Federal and non-Federal elements of the Network and units and programs of the National Park Service, the Secretary may enter into cooperative agreements and memoranda of understanding with, and provide technical assistance to, the heads of other Federal agencies, States, units of local government, regional governmental bodies, and private entities. 2205. Golden Spike National Historical Park (a) Definitions In this section: (1) Park The term Park means the Golden Spike National Historical Park designated by subsection (b)(1). (2) Program The term Program means the program to commemorate and interpret the Transcontinental Railroad authorized under subsection (c). (3) Secretary The term Secretary means the Secretary, acting through the Director of the National Park Service. (4) Transcontinental railroad The term Transcontinental Railroad means the approximately 1,912-mile continuous railroad constructed between 1863 and 1869 extending from Council Bluffs, Iowa, to San Francisco, California. (b) Redesignation (1) Redesignation The Golden Spike National Historic Site designated April 2, 1957, and placed under the administration of the National Park Service under Public Law 89–102 ( 54 U.S.C. 320101 note