Pending submission of the Commission's plan, any Federal entity conducting or supporting significant activities directly affecting East Saint Louis, Illinois, generally and the site specifically referred to in section 450jj-3 of this title shall - (1) consult with the Secretary of the Interior and the Commission with respect to such activities; (2) cooperate with the Secretary of the Interior and the Commission in carrying out their duties under sections 450jj to 450jj-9 of this title, and to the maximum extent practicable, coordinate such activities with the carrying out of such duties; and (3) to the maximum extent practicable, conduct or support such activities in a manner which the Secretary determines will not have an adverse effect on the Memorial.