Requires the National Flood Insurance Program (NFIP) Administrator to publish a wide range of flood-insurance program data and to build public, searchable tools and databases that make property-level flood risk, policy and claims summaries, mitigation status, and multiple-loss information available. The bill mandates an open-source data system, a community-level database with specified fields, and protections for personally identifiable information; the community database must be created and searchable within one year of enactment.