1. Short title This Act may be cited as the Flood Insurance Transparency Act of 2023 . 2. Public availability of program information Part C of chapter II of the National Flood Insurance Act of 1968 ( 42 U.S.C. 4081 et seq. ) is amended by adding at the end the following: 1349. Public availability of program information (a) Definitions In this section— (1) the term loss ratio means, with respect to the national flood insurance program in a fiscal year, the ratio of the amount of claims paid under that program during that fiscal year to the amount of premiums paid under that program during that fiscal year; and (2) the term multiple-loss property means— (A) a repetitive loss structure; or (B) a severe repetitive loss structure, as that term is defined in section 1366(h). (b) Flood risk information (1) In general To facilitate the national flood insurance program becoming a source of information and data for research and development of technology that better understands flooding, the risk of flooding, and the predictability of the perils of flooding, the Administrator shall make publicly available all data, models, assessments, analytical tools, and other information in the possession of the Administrator relating to that program under this title that is used in assessing flood risk or identifying and establishing flood elevations and premiums, including— (A) data relating to risk on individual properties, loss ratio information, and other information identifying losses under that program; (B) current and historical policy information, limited to the amount and term only, for properties covered by flood insurance under the national flood insurance program (as of the date on which the information is made available) and for properties that are no longer covered by flood insurance under the national flood insurance program (as of the date on which the information is made available)