Substitute House Bill No. 5334 seeks to amend the Inland Wetlands and Watercourses Act (IWWA) to enhance the regulation of activities affecting wetlands and watercourses. Key insertions include new definitions such as "riparian area" and "natural vegetative cover," which specifically excludes lawns and invasive plants. The bill expands the definition of "regulated activity" to include the removal of natural vegetative cover in riparian areas, while allowing certain agricultural activities, like conservation efforts and invasive species removal, under specified conditions. It also introduces new considerations for evaluating the impacts of proposed activities, emphasizing the importance of maintaining natural vegetative cover to mitigate pollutants and regulate water temperatures.

Additionally, the bill modifies existing provisions to allow maintenance of drainage pipes and culverts on residential properties without hydrophytic vegetation and clarifies that incidental uses related to property maintenance must not significantly alter wetlands or watercourses. The criteria for issuing permits are revised, requiring applicants to demonstrate that their activities will not adversely impact wetlands or watercourses, and mandates documentation of permit decisions by the inland wetlands agency. The bill also includes a fiscal impact, projecting costs for hiring an Environmental Analyst, while municipalities may benefit from reduced public hearings and potential revenue from fines for violations. The effective date for these changes is set for October 1, 2026.

Statutes affected:
Raised Bill: 12-63g
ENV Joint Favorable Substitute:
File No. 192: