; and (ii) be applied to mid- and high-rise multifamily buildings in the areas described in clause (i). . (d) Calculation of risk premium rates Section 1308 of the National Flood Insurance Act of 1968 ( 42 U.S.C. 4015 ) is amended by adding at the end the following: (n) Consideration of partial mitigation methods Notwithstanding any other provision of law, with respect to a chargeable premium rate prescribed for a building described in section 1315(a)(3)(B), the Administrator shall ensure that the chargeable premium rate properly reflects the reduction in flood risk after adopting and implementing the land use and control measures described in that section, if applicable. . 107. Technical assistance Section 1315(b) of the National Flood Insurance Act of 1968 ( 42 U.S.C. 4022(b) ) is amended by adding at the end the following: (5) Regional coordinator (A) In general The Administrator shall appoint a regional coordinator in each region served by a Regional Office (as defined in section 501 of the Homeland Security Act of 2002 ( 6 U.S.C. 311 )) to provide technical assistance to small communities to enable those communities to effectively participate in, and benefit from, the community rating system program. (B) Authorization of appropriations There are authorized to be appropriated such sums as may be necessary to carry out this paragraph, which shall remain available until expended. . II Flood mapping program improvements 201. Reauthorization of mapping program Section 100216(f) of the Biggert-Waters Flood Insurance Reform Act of 2012 ( 42 U.S.C. 4101b(f) ) is amended by striking 2017 and inserting 2023 . 202. National Flood Mapping Program improvements Section 100216 of the Biggert-Waters Flood Insurance Reform Act of 2012 ( 42 U.S.C. 4101b ) is amended— (1) in subsection (b)— (A) in paragraph (1)— (i) by redesignating subparagraphs (B) and (C) as subparagraphs (C) and (D), respectively