; (3) provide information, promote understanding, and encourage research on National Heritage Areas in partnership with local coordinating entities; and (4) provide national oversight, analysis, coordination, technical and financial assistance, and support to ensure consistency and accountability of the National Heritage Area System. 5. Feasibility studies The Secretary, in undertaking a feasibility study, or reviewing a feasibility study conducted by others, shall apply the following criteria to determine the suitability and feasibility of designating a proposed National Heritage Area: (1) The proposed area is worthy of designation as a National Heritage Area because— (A) the area includes natural, historic, cultural, or scenic resources that are associated with nationally significant themes and events and these resources— (i) combine to form a distinct and cohesive landscape; and (ii) retain sufficient integrity to support the themes and events associated with the area’s national significance