16 U.S.C. § 410yy–7 — Financial and technical assistance

(a) In general: The Secretary may give owners of nationally significant historic or cultural property inside the park financial and technical assistance — under cooperative or grant agreements — to mark, interpret, and restore non-federal properties, as the Secretary decides is appropriate for the subchapter's purposes. In exchange: (1) the Secretary, through the National Park Service, must have the right to reach public portions of the property at reasonable times, to guide visitors and interpret the property for the public, and (2) no changes can be made to the property except by mutual agreement between the Secretary and the other party. (b) Matching funds: Money authorized for this section must be spent in a 1-to-1 ratio — one dollar of federal money for every dollar contributed from non-federal sources. The Secretary may accept and use such non-federal contributions. Land donated by the State of Michigan can count as a non-federal contribution for this purpose.