; and (2) in subsection (b), by striking the day before the date of enactment of this Act and inserting the day before the date of enactment of the America's Water Infrastructure Act of 2018 . 3809. Indian dam safety reauthorization Section 3101 of the Water Infrastructure Improvements for the Nation Act ( 25 U.S.C. 3805 ) is amended— (1) by striking each of fiscal years 2017 through 2023 each place it appears and inserting each of fiscal years 2017 through 2030 ; (2) in subsection (b)— (A) in paragraph (1)(F), in the matter preceding clause (i), by striking September 30, 2023 and inserting September 30, 2030 ; and (B) in paragraph (2)(F), in the matter preceding clause (i), by striking September 30, 2023 and inserting September 30, 2030 ; and (3) in subsection (f)— (A) in paragraph (2), by striking 4 years and inserting 11 years ; and (B) in paragraph (3), by striking each of fiscal years 2017, 2018, and 2019 and inserting each of fiscal years 2017 through 2026 . 3810. GAO report on Alaska Native village relocation efforts due to flooding and erosion threats (a) Definition of Alaska Native village In this section, the term Alaska Native village means a Native village that has a Village Corporation (as those terms are defined in section 3 of the Alaska Native Claims Settlement Act ( 43 U.S.C. 1602 )). (b) Report The Comptroller General of the United States (referred to in this section as the Comptroller General ) shall submit to Congress a report on efforts to relocate Alaska Native villages due to flooding and erosion threats that updates the report of the Comptroller General entitled Alaska Native Villages: Limited Progress Has Been Made on Relocating Villages Threatened by Flooding and Erosion , dated June 2009. (c) Inclusions The report under subsection (b) shall include— (1) a summary of flooding and erosion threats to Alaska Native villages throughout the State of Alaska, based on information from— (A) the Corps of Engineers; (B) the Denali Commission