The bill aims to enhance flood risk management in Massachusetts by mandating the Executive Office of Energy and Environmental Affairs (EEA) to conduct a comprehensive review of existing flood risk mapping resources and develop recommendations for improvements by August 18, 2025. It emphasizes the importance of accurate flood hazard information for land use planning, infrastructure siting, and public safety, with a focus on minimizing the impacts of flooding on housing, infrastructure, and public health. Key provisions include the establishment of a MyCoast platform for real-time reporting of coastal storm impacts and the introduction of tidal monitoring stations to improve data collection and flood modeling efforts.

Additionally, the bill outlines initiatives to improve flood risk assessment and mapping across various flooding types, including riverine, pluvial, coastal, and groundwater flooding. It calls for the development of a consolidated database of past flood locations, the enhancement of existing flood models, and the incorporation of municipal stormwater infrastructure data. The bill also emphasizes community engagement, particularly with environmental justice communities, and requires the Secretary of Energy and Environmental Affairs to review and recommend additional flood risk mapping resources. Overall, the legislation seeks to strengthen Massachusetts' capacity to manage and mitigate flood risks in light of climate change.