; and (II) by striking for such storm under subparagraph (B) and inserting under subparagraph (D), any coastal State that suffered such losses ; and (v) by adding at the end the following: (F) Separate post-storm assessments for a single named storm (i) In general The Administrator may conduct a separate post-storm assessment for each coastal State in which indeterminate losses are identified under subparagraph (C). (ii) Timeline If the Administrator conducts a separate post-storm assessment under clause (i), the Administrator shall complete the assessment based on the dates of actions that the Administrator takes under subparagraphs (C) and (D). ; and (3) in subsection (c)— (A) in paragraph (1), by striking 540 days after the date of the enactment of the Consumer Option for an Alternative System to Allocate Losses Act of 2012 and inserting June 1, 2019 ; (B) in paragraph (2), by inserting , in the discretion of the Administrator, after of sensors as may ; and (C) in paragraph (4)(B), by inserting and expend after receive . (b) Amendment to the National Flood Insurance Act of 1968 Section 1337(a)(5) of the National Flood Insurance Act of 1968 ( 42 U.S.C. 4057(a)(5) ) is amended by inserting sustained after maximum .