; (C) the resource preservation and interpretation strategies contained in the management plan would adequately protect the natural, historical, and cultural resources of the Corridor; and (D) the Secretary has received adequate assurances from appropriate State and local officials whose support is needed to ensure the effective implementation of the State and local aspects of the plan. (3) Action following disapproval If the Secretary disapproves the management plan, the Secretary shall— (A) advise the management entity in writing of the reasons for the disapproval; (B) make recommendations for revisions to the management plan; and (C) not later than 180 days after the receipt of any proposed revision of the management plan from the management entity, approve or disapprove the proposed revision. (4) Amendments (A) In general The Secretary shall approve or disapprove each amendment to the management plan that the Secretary determines make a substantial change to the management plan. (B) Use of funds The management entity shall not use Federal funds authorized by this subtitle to carry out any amendments to the management plan until the Secretary has approved the amendments. 7. Relationship to other Federal agencies (a) In general Nothing in this section affects the authority of a Federal agency to provide technical or financial assistance under any other law. (b) Consultation and coordination The head of any Federal agency planning to conduct activities that may have an impact on the Heritage Area is encouraged to consult and coordinate the activities with the Secretary and the management entity to the maximum extent practicable. (c) Other Federal agencies Nothing in this section— (1) modifies, alters, or amends any law or regulation authorizing a Federal agency to manage Federal land under the jurisdiction of the Federal agency; (2) limits the discretion of a Federal land manager to implement an approved land use plan within the boundaries of the Heritage Area