16 U.S.C. § 470jj
The Secretary of the Interior shall take such action as may be necessary, consistent with the purposes of this chapter, to foster and improve the communication, cooperation, and exchange of information between—
In carrying out this section, the Secretary shall, to the extent practicable and consistent with the provisions of this chapter, make efforts to expand the archaeological data base for the archaeological resources of the United States through increased cooperation between private individuals referred to in paragraph (1) and professional archaeologists and archaeological organizations.