FL S1550

Redefines "coastal building zone" to "area at risk due to sea level rise," expanding coverage to inland and coastal areas where sea level rise substantially increases flood risk from tidal, storm surge, or groundwater inundation.

Requires state-financed constructors to conduct and submit sea level impact projection (SLIP) studies to the department before commencing construction of potentially at-risk structures, with a 30-day publication period before construction can begin.

Mandates SLIP studies include assessment of flooding risks over 50 years or the structure's expected life, accounting for relative sea-level rise, storm risk, and potential public safety and environmental impacts.

Adds requirement that state-financed constructors provide a list of flood mitigation strategies evaluated and identify which strategies have been implemented or are being considered in the structure's design.

Authorizes the department to seek injunctive relief to cease construction or recover state funds if a state-financed constructor violates SLIP study requirements; effective July 1, 2021.