; (C) plan, design, or engineer a project to— (i) restore, expand, install, or relocate natural infrastructure; (ii) remove damaged assets, restore sites to safe conditions, and select alternative sites; or (iii) facilitate the landward migration of coastal ecosystems; or (D) implement a project described by subparagraph (C). (3) Federal share The Secretary may issue a grant under this subsection for an amount not to exceed— (A) 90 percent of the cost of an activity described in subparagraph (A) or (B) of paragraph (2); (B) except as provided in subparagraph (C), 60 percent of the cost of an activity described in paragraph (2)(D); (C) 75 percent of the cost of an activity provided for in a plan approved under subsection (d); or (D) 100 percent of the cost of any activity described in subparagraph (A), (B), or (C) of paragraph (2) responding to the effects of a severe coastal flood in a disadvantaged community that is identified in a plan approved under subsection (d). (c) Grants for severe coastal flood hazard planning (1) In general The Secretary, at the request of a Governor of a coastal state, may use amounts in the Fund to issue a grant to a coastal state with an approved coastal zone management program for the timely response to a severe coastal flood hazard. (2) Proposal To be considered for a grant under this section, a State shall submit a grant proposal to the Secretary in a time, place, and manner determined by the Secretary. Such proposal shall— (A) describe the risks that severe coastal flood hazards pose in the State and goals for reducing loss of life and property and sustaining coastal ecosystems in response to these risks; (B) include consideration of related plans including the Coastal Zone Management Plan of the State, the Hazard Mitigation Plan of the State, and the severe coastal flood hazard preparedness plans, if any, of neighboring States