; (C) developing recreational and educational opportunities in the Heritage Area; (D) increasing public awareness of, and appreciation for, natural, historical, scenic, and cultural resources of the Heritage Area; (E) protecting and restoring historic sites and buildings in the Heritage Area that are consistent with Heritage Area themes; (F) ensuring that clear, consistent, and appropriate signs identifying points of public access, and sites of interest are posted throughout the Heritage Area; and (G) promoting a wide range of partnerships among governments, organizations, and individuals to further the Heritage Area; (3) consider the interests of diverse units of government, businesses, organizations, and individuals in the Heritage Area in the preparation and implementation of the management plan; (4) conduct meetings open to the public at least semiannually regarding the development and implementation of the management plan; and (5) submit an annual report to the Secretary that describes the activities, expenses, and income of the management entity (including grants to any other entities during the year that the report is made). 5. Management plan (a) In general Not later than 3 years after the date of enactment of this Act, the management entity shall submit to the Secretary for approval a proposed management plan for the 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, historic, scenic, and recreational resources of the Heritage Area; (2) take into consideration State and local plans; (3) include— (A) an inventory of— (i) the resources located in the core area described in section 4(b); and (ii) any other property in the core area that— (I) is related to the themes of the Heritage Area; and (II) should be preserved, restored, managed, or maintained because of the significance of the property