To carry out the policy declared in section 200101 of this title, the heads of Federal agencies having administrative responsibility over activities or resources the conduct or use of which is pertinent to fulfillment of that policy shall, individually or as a group—

(1) consult with and be consulted by the Secretary from time to time both with respect to their conduct of those activities and their use of those resources and with respect to the activities that the Secretary carries on under authority of this chapter that are pertinent to their work; and

(2) carry out that responsibility in general conformance with the nationwide plan authorized under section 200103(d) of this title.