; and (2) shall not convert to nonagricultural uses farmland— (A) that is permanently protected farmland; (B) that has been defined and delineated by the Secretary under subsection (b) as farmland of national significance; or (C) that has been defined and delineated by a State as significant to the State or a priority for inclusion in a State farmland protection program and for which the State has submitted a description under subsection (b). (b) Definition and delineation of land (1) National significance The Secretary shall define and delineate farmland of national significance, and shall convene a group of experts, including agronomists and soil scientists, to assist in such definition and delineation. (2) State significance Any State wishing to have land recognized under subsection (a)(2)(C) shall provide a definition and delineation of such lands to the Secretary. (c) Process and criteria (1) Process and criteria The Secretary shall develop a process, including criteria— (A) to— (i) determine the potential conversion of farmland as a consequence of any action or activity conducted through a Federal program; (ii) minimize the conversion of farmland or, for land identified under subsection (a)(2), avoid conversion; and (iii) provide notice regarding such actions to the Secretary