Issue · Environment

Environment

Every environment bill, vote, and legislator stance in Wisconsin, automatically classified by Maddy, our AI policy reader.

Total bills
3
2025-2026 Regular Session
Top supporter
Shannon Zimmerman
89% support rate
Top opponent
Darrin Madison
20% support rate
Ranked legislators
10
5 support · 5 oppose
Key legislators

Who's moving environment in Wisconsin

Legislators moving environment in Wisconsin
Legislator Party Stance Support rate Decisive votes
Shannon Zimmerman
Shannon Zimmerman House · District 30
R
Strong +
89% 9
Jodi Habush Sinykin
Jodi Habush Sinykin Senate · District 8
D
Strong +
88% 8
Mark Spreitzer
Mark Spreitzer Senate · District 15
D
Strong +
88% 8
Melissa Ratcliff
Melissa Ratcliff Senate · District 16
D
Strong +
88% 8
Kelda Roys
Kelda Roys Senate · District 26
D
Strong +
86% 7
Darrin Madison
Darrin Madison House · District 10
D
Strong −
20% 10
Francesca Hong
Francesca Hong House · District 76
D
Strong −
20% 10
Lori Palmeri
Lori Palmeri House · District 54
D
Strong −
20% 10
Sequanna Taylor
Sequanna Taylor House · District 11
D
Strong −
20% 10
Supreme Moore Omokunde
Supreme Moore Omokunde House · District 17
D
Strong −
20% 10
Showing 3 of 3 bills

All environment bills

signed · Wisconsin · Assembly Apr 6, 2026

AB 130: Relating to: exempting certain persons from PFAS enforcement actions under the spills law. (FE)

AB 130 exempts specific groups from certain PFAS enforcement actions under Wisconsin's spills law if they allow the state to clean up contaminated land at no cost to them. It directly affects landowners, fire departments, airports, wastewater spreaders, and waste facilities that handled PFAS-contaminated materials legally. The bill creates exemptions for those who spread permitted biosolids, owned land where such spreading occurred, used PFAS in emergency response (per federal rules), accepted PFAS waste, or own property not responsible for the contamination origin. This applies only to enforcement sections related to PFAS contamination under the spills law, not all PFAS regulations.
signed · Wisconsin · Assembly Apr 2, 2026

AB 453: Relating to: required approvals of rezoning requests related to residential development, contents of and consistency of local ordinances with local comprehensive plans, certain tax incremental district project costs related to residential development, and tax incremental district lifespan extension. (FE)

AB 453 requires counties and cities to include specific elements in their comprehensive land-use plans, such as 20-year projections of residential development (in 5-year increments) and maps showing current/future land uses, including environmentally sensitive areas. It mandates that local ordinances related to residential development must align with these plans, though density requirements (specifying minimum/maximum residential units per acre) apply only to cities, not towns or counties. The bill affects local governments by standardizing planning processes for residential growth and ensuring consistency between zoning rules and long-term land-use goals. It does not create new taxes or funding but updates existing planning statute requirements.
passed · Wisconsin · Assembly Mar 23, 2026

AB 840: Relating to: certain requirements related to data centers.

AB 840 regulates data centers in the state by requiring specific operational and environmental standards. It mandates that data centers use closed-loop cooling systems (recycling water instead of using fresh water) and report annual water usage to the department. The bill also requires renewable energy facilities serving data centers to be located on-site and prohibits utility customers from paying for data center infrastructure costs. Additionally, operators must provide financial bonds for construction and restore land if projects are abandoned. These provisions directly affect all data center operators and developers in the state.