; and (C) placed on file in accordance with subsection (c). (c) Availability of map The map shall be on file and available for public inspection in the appropriate offices of— (1) the National Park Service; and (2) the local coordinating entity. (d) Local coordinating entity The Washington Trust for Historic Preservation shall be the local coordinating entity for the National Heritage Area. 4. Management plan (a) In general Not later than 3 years after the date of enactment of this Act, the local coordinating entity shall submit to the Secretary for approval a proposed management plan for the National Heritage Area. (b) Requirements The management plan shall— (1) incorporate an integrated and cooperative approach for the protection, enhancement, and interpretation of the natural, cultural, historical, scenic, and recreational resources of the National Heritage Area; (2) take into consideration State and local plans; (3) include— (A) an inventory of— (i) the resources located in the National Heritage Area; and (ii) any other property in the National Heritage Area that— (I) is related to the themes of the National Heritage Area; and (II) should be preserved, restored, managed, or maintained because of the significance of the property; (B) comprehensive policies, strategies and recommendations for the conservation, funding, management, and development of the National Heritage Area; (C) a description of actions that governments, private organizations, and individuals have agreed to take to protect the natural, cultural, and historical resources of the National Heritage Area; (D) a program of implementation for the management plan by the local coordinating entity that includes a description of— (i) actions to facilitate ongoing collaboration among partners to promote plans for resource protection, restoration, and construction