Illinois 2025-2026 Regular Session

Illinois House Bill HB3596

Introduced
2/7/25  
Refer
2/18/25  
Refer
3/11/25  
Refer
3/21/25  
Refer
2/17/26  
Report Pass
3/18/26  
Refer
4/17/26  

Caption

WETLANDS PROTECTION ACT

Summary

HB3596 creates the Illinois Wetlands Protection Act, establishing a new state permitting program for discharges of dredged or fill material into “State jurisdictional wetlands.” The bill assigns primary administration to the Department of Natural Resources and requires permits for regulated wetland impacts unless an exemption applies. It also directs the Illinois Environmental Protection Agency to certify that permitted activities will not violate state water quality standards before an individual permit may be issued, and it authorizes the Department to issue general permits for categories of low-impact activities. The bill sets up a detailed framework for wetland classification, delineation, mitigation, enforcement, and appeals. Wetlands are divided into Class I, II, and III categories, with higher mitigation ratios for more sensitive wetlands and no permit required for the smallest Class III wetlands at or below one-tenth of an acre. The bill also creates procedures for mitigation banks and in-lieu fee programs, allows after-the-fact permits in limited emergency circumstances, and establishes a Wetlands Protection Fund to support implementation, restoration, and enforcement. It further preserves county and special district stormwater authority, including a recognition process for local programs that meet state standards. The bill’s impact on state law would be substantial: it would add a new wetlands regulatory regime to Illinois law, expand state oversight over wetland filling and dredging, and create new administrative, fee, and enforcement structures. It also makes conforming changes to the State Finance Act to create the Wetlands Protection Fund. In practical terms, developers, utilities, local governments, agricultural operators, and conservation entities would all be affected by new permitting, mitigation, and review requirements, although the bill includes exemptions for certain farming, maintenance, and existing or artificial water-related activities. The general sentiment reflected in the bill text is strongly protective of wetlands and supportive of state-level regulation. The findings emphasize historic wetland loss, flood control, water quality, habitat, and climate resilience, and the bill is framed as a response to reduced federal protections after the U.S. Supreme Court’s Sackett decision. Because there are no committee transcripts or recorded votes provided, there is no direct evidence of debate or partisan sentiment in the available context. The main points of contention likely concern the scope of state jurisdiction, the permitting burden on landowners and project developers, and the interaction with federal and local programs. The bill presumes many wetlands near navigable waters, floodplains, and Lake Michigan are covered, but allows rebuttal by property owners or developers. It also includes a broad set of exemptions and a carveout for renewable energy projects that had already commenced construction before rules are adopted, suggesting sensitivity to infrastructure and energy stakeholders. Local stormwater authorities and counties are given a role, which may raise questions about delegation, consistency, and enforcement authority.

Impact

HB3596 would create a new state wetlands permitting and enforcement program administered primarily by the Department of Natural Resources, with water quality certification by the Illinois Environmental Protection Agency for individual permits. It would regulate discharges of dredged or fill material into State jurisdictional wetlands, establish wetland classifications and mitigation requirements, authorize general permits and mitigation banking, create civil penalties and citizen complaint procedures, and establish the Wetlands Protection Fund. It would also preserve and recognize certain county and special district stormwater programs and make conforming amendments to the State Finance Act.

Sentiment

The bill is presented in strongly pro-conservation terms, with findings emphasizing wetland loss, flood protection, water quality, habitat, and climate resilience. The text reflects a clear policy goal of restoring protections after federal limitations on wetlands jurisdiction, and it includes multiple mechanisms to facilitate implementation. No committee testimony or votes are available, so there is no recorded public sentiment beyond the bill’s own framing.

Contention

Likely areas of contention include the breadth of wetlands covered as State jurisdictional wetlands, the permitting and mitigation costs imposed on developers and landowners, and the extent of state versus local versus federal authority. The bill’s rebuttable presumptions, mitigation ratios, and permit review fees may be viewed as burdensome by regulated parties, while environmental advocates are likely to support the strong protections and enforcement tools. Renewable energy projects, agricultural exemptions, and county stormwater delegation are also likely to be focal points for debate.

Companion Bills

No companion bills found.

Similar Bills

No similar bills found.