The bill aims to regulate stormwater treatment and management systems, defining and amending terms related to compensating stormwater treatment, pollutant reduction allocations, and enhancement credits. It requires financial responsibility documentation, establishes graphic depictions of drainage areas, and addresses provisional permits and the use of pollution reduction allocations. The bill also revises legislative findings and permits the use of enhancement credits from water quality areas. The bill has implications for seaports, onsite and offsite stormwater treatment, and regional stormwater management systems. It is enacted by the Legislature of the State of Florida with an effective date of July 1, 2026.