Diane Blair-Sherlock
HB 4523 status: Introduced — Added Co-Sponsor Rep. Laura Faver Dias (updated Sep 4, 2026).
Source
LegiScan
Confidence
High
Analysis basis
LegiScan full bill text
Official summary alongside an AI-generated read on where it stands and why.
Overall Score
Bill summary
The bill amends the Illinois Pesticide Act to require disclosure of PFAS in pesticides and prohibits the registration and use of pesticides containing intentionally added PFAS.
Pesticide manufacturers, agricultural operators, commercial pesticide applicators, and state agricultural regulators.
Registrants must disclose PFAS content during registration; prohibited products will be phased out for pesticides by 2027 and spray adjuvants by 2030.
Manufacturing costs for reformulation and compliance testing; state administrative costs for rulemaking and enforcement.
Disclosure and registration ban effective 2027; spray adjuvant ban effective 2030.
Reduced environmental and public health risks associated with PFAS; increased transparency in product ingredients.
Potential lack of effective, non-PFAS alternatives by the deadlines; regulatory and economic burden on local agriculture.
The specific safety profile of the replacement chemicals that manufacturers may choose to adopt.
Modeled effects across six domains, estimated from bill text and comparable legislation.
Positive outlook
Positive outlook
Positive outlook
Mixed / Neutral
Positive outlook
Positive outlook
Sourcing already shown above, this is what the analysis found worth flagging.
Source
LegiScan
Official bill text or data from LegiScan.
Confidence
High
Information is complete and verified.
Analysis basis
LegiScan full bill text
Source used for this bill's analysis.
Source note
Risk of pesticide manufacturers shifting to non-PFAS alternatives that may also have unstudied safety profiles
Analysis scope
No specific budget allocation provided for enforcement
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