; or (ii) a scientifically based, direct enhancement to the health of fish and fish populations, as determined by the Board. (B) State agency approval (i) In general All real property interest acquisition projects funded under this Act must be approved by the State agency in the State in which the project is occurring. (ii) Prohibition The Board may not recommend, and the Secretary may not provide any funding for, any real property interest acquisition that has not been approved by the State agency. (C) Assessment of other authorities The Board may not recommend, and the Secretary may not provide any funding under this Act for, any real property interest acquisition unless the Partnership that recommended the project has conducted a project assessment, submitted with the funding request and approved by the Board, to demonstrate all other Federal, State, and local authorities for the acquisition of real property have been exhausted. (D) Restrictions A real property interest may not be acquired pursuant to a fish habitat conservation project by a State, local government, or other non-Federal entity conducted with funds provided under this Act, unless— (i) the owner of the real property authorizes the State, local government, or other non-Federal entity to acquire the real property; and (ii) the Secretary and the Board determine that the State, local government, or other non-Federal entity would benefit from undertaking the management of the real property being acquired because that is in accordance with the goals of a Partnership. (e) Non-Federal contributions (1) In general Except as provided in paragraph (2), no fish habitat conservation project may be recommended by the Board under subsection (b) or provided financial assistance under this Act unless at least 50 percent of the cost of the fish habitat conservation project will be funded with non-Federal funds. (2) Non-Federal share Such non-Federal share of the cost of a fish habitat conservation project— (A) may not be derived from another Federal grant program