; (2) operate transparently; (3) prioritize positive community outcomes; (4) develop partnerships and programming to drive community redevelopment forward; and (5) access education, expertise, and research to strengthen the critical work of land banks in supporting equitable communities. 4. National land bank network (a) Definitions In this section: (1) Corporation The term Corporation means the Neighborhood Reinvestment Corporation established under the Neighborhood Reinvestment Corporation Act ( 42 U.S.C. 8101 et seq. ). (2) Eligible entity The term eligible entity means a national nonprofit organization that has demonstrated and established expertise— (A) in supporting the creation, implementation, and operation of land banks; and (B) relating to the systems, laws, and policies that impact vacant, abandoned, and other problem properties. (3) Land bank The term land bank means a government entity, agency, or program, or a special purpose nonprofit entity formed by 1 or more units of government in accordance with a State or local land bank enabling law, that has been designated by 1 or more State or local governments to acquire, steward, and dispose of vacant, abandoned, or other problem properties in accordance with locally determined priorities and goals. (4) Member land bank The term member land bank means a rural, suburban, or urban land bank that is a member of the national land bank network. (5) National land bank network The term national land bank network means the membership-based national land bank network established under subsection (b)(1). (b) National land bank network Not later than 180 days after the date of enactment of this Act, the Corporation shall enter into a contract with an eligible entity to establish and operate— (1) a membership-based national land bank network