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 the MyCoast platform for real-time reporting of coastal storm impacts, the development of temperature and precipitation projections for future flood modeling, and the requirement for Emergency Action Plans for significant and high hazard dams.

The bill also proposes the creation of a statewide online flood reporting tool and the collection of standardized flood data to improve understanding and response to flood risks. It highlights the need for updated flood maps that account for future climate scenarios and sea level rise, as well as the importance of interagency coordination in floodplain management. Additionally, the bill emphasizes engaging environmental justice communities and rural areas in flood vulnerability assessments and planning efforts, ensuring that flood mapping resources are tailored to their unique challenges. Overall, the proposed measures aim to improve flood resilience and adaptation strategies across the Commonwealth, fostering community involvement and integrating scientific data into planning processes.