; and (2) by adding at the end the following: (F) Cost-share for certain mitigation projects (i) In general In the case of a feasibility study described in clause (ii), the Federal share of the cost of the study shall be, as determined by the Secretary— (I) not less than 50 percent; and (II) not more than 100 percent. (ii) Feasibility studies described A feasibility study referred to in clause (i) is a feasibility study for a project for mitigation of damage to an area affected by weather or other events for which— (I) during the 8-year period ending on the date of enactment of the America's Water Infrastructure Act of 2018 — (aa) the Secretary provided emergency response under section 5 of the Act of August 18, 1941 (commonly known as the Flood Control Act of 1941 ) (55 Stat. 650, chapter 377; 33 U.S.C. 701n ); or (bb) the area received disaster assistance under the Robert T. Stafford Disaster Relief and Emergency Assistance Act ( 42 U.S.C. 5121 et seq.); and (II) there is a significant risk for future similar events (as determined by the Secretary). . 1012. Extended community assistance by the Corps of Engineers Section 5(a) of the Act of August 18, 1941 (commonly known as the Flood Control Act of 1941 ) (55 Stat. 650, chapter 377; 33 U.S.C. 701n(a) ), is amended— (1) by redesignating paragraph (3) as paragraph (4)