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SB 1158

An Act amending the act of March 1, 1974 (P.L.90, No.24), known as the Pennsylvania Pesticide Control Act of 1973, providing for prohibited pesticides.

2025-2026 Regular Session Introduced by Maria Collett and 13 co-sponsors

Prohibits using paraquat as a pesticide in Pennsylvania, with a one-year transition and regulatory supremacy to enforce the ban.

Referred to Consumer Protection & Professional Licensure
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Bill Summary · SB 1158

Overview

Senate Bill 1158 (2025-2026) from Pennsylvania would amend the Pennsylvania Pesticide Control Act of 1973/1974 to prohibit the use of paraquat as a pesticide within the Commonwealth. The bill adds a new section (Section 27.1) establishing a clear prohibition, defines paraquat and related terms, and clarifies that regulations inconsistent with the act are superseded. The measure would take effect one year after enactment.

Main purpose and intent

  • Prohibit the use of paraquat as a pesticide in Pennsylvania.
  • Provide precise definitions to ensure consistent interpretation and enforcement.
  • Align regulatory framework with a specific prohibition, potentially addressing health, safety, and environmental concerns associated with paraquat.

Key provisions and changes

  • New prohibition: It shall be unlawful to use, or cause the use of, paraquat as a pesticide in Pennsylvania.
  • Definitions (Section 27.1(a)–(b)):
    • “CAS number” defined as the unique Chemical Abstracts Service number for a substance, effective date the section.
    • “Paraquat” defined as the chemical with CAS number 4685-14-7 and any salt of that chemical, including:
    • Methyl viologen (CAS 1910-42-5)
    • Paraquat bismethylsulfate (CAS 2074-50-2)
  • Regulatory supremacy: Any regulations inconsistent with the act are abrogated to the extent of inconsistency (Section 2), ensuring the prohibition is controlling.
  • Effective date: The act provides that it shall take effect one year after enactment (Section 3), allowing time for compliance, enforcement planning, and potential transitional arrangements.

Who/what would be affected

  • Pesticide users in Pennsylvania, including agricultural producers, commercial applicators, and other individuals or entities that might use paraquat as part of pest management.
  • Pesticide manufacturers, distributors, and retailers who handle paraquat would face prohibition on use within the state, with potential implications for sales within Pennsylvania after the effective date.
  • Regulatory and enforcement agencies responsible for pesticide control would need to monitor and enforce the prohibition.

Procedural and timeline aspects

  • Introduction and sponsorship: Introduced February 24, 2026.
  • Referral: Referred to the Senate committee on Consumer Protection and Professional Licensure.
  • Effective date: One year from enactment (date to be determined by enactment year), providing a transition period for compliance and enforcement preparation.
  • Regulatory framework: Abrogates any conflicting regulations to maintain the prohibition.

Potential implications and considerations

  • Public health and environmental protection rationale often cited in paraquat bans (paraquat is linked to toxic outcomes in some studies); this bill codifies a statewide prohibition.
  • Stakeholders may seek guidance on compliant pest management alternatives and any existing stock or contractual obligations prior to the effective date.
  • The bill would not create new licensing or penalties beyond enforcing the prohibition itself, but it could influence related regulatory actions and substitution policies.

If you’d like, I can add a brief comparison to how paraquat restrictions are handled in other states or provide a redline-style section-by-section note mapping the changes to the current Pesticide Control Act.

Compiled from official sources — confirm details with the bill’s official record.

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