; and (ii) conduct fireshed management projects in accordance with subsection (d) in those fireshed management areas. (B) Additional fireshed management areas With respect to an agreement with a Governor of a State under subparagraph (A), the Secretary, if requested by that Governor, may— (i) designate additional fireshed management areas under that agreement; and (ii) update that agreement to address new wildfire threats. (C) Shared stewardship A previously signed stewardship agreement between a Governor of a State and the Secretary (or an update or successor agreement to such a stewardship agreement) may be treated as an agreement under subparagraph (A) if that Governor approves that treatment. (2) Designation of fireshed management areas (A) In general A fireshed management area designated under an agreement under paragraph (1)— (i) shall be— (I) a landscape-scale area; and (II) identified on the date of that designation as a fireshed ranked in the top 10 percent of wildfire exposure, as determined by the most recently published models of fireshed risk exposure published by the Secretary of Agriculture, acting through the Chief of the Forest Service; (ii) may not overlap with any other fireshed management area; and (iii) may contain Federal and non-Federal land. (B) Applicability of NEPA The designation of a fireshed management area under an agreement under paragraph (1) shall not be subject to the requirements of the National Environmental Policy Act of 1969 ( 42 U.S.C. 4321 et seq. ). (c) Stewardship and fireshed assessments (1) In general Not later than 90 days after entering into an agreement with a Governor of a State under subsection (b)(1), the Secretary and that Governor shall, with respect to the fireshed management areas designated under that agreement, jointly conduct a stewardship and fireshed assessment that— (A) identifies— (i) using the best available data, wildfire exposure risks within each of those fireshed management areas, including scenario planning and wildfire hazard mapping and models