SOUND Pesticide Research Act
- Sponsor
- Rep. Mace, Nancy [R-SC-1]
- Committees
- Energy and Commerce Committee (primary)
- Last action
- Aug 24, 2026
Bottom line
This bill mandates stricter scientific data requirements for EPA's pesticide chemical residue tolerance decisions, potentially leading to re-evaluation of many existing pesticide approvals and increased testing burdens for manufacturers.
What it actually does
This bill amends the Federal Food, Drug, and Cosmetic Act to mandate that the Environmental Protection Agency (EPA) rely on comprehensive data from multigenerational reproductive toxicity studies, including at least four generations of test species, when making decisions about pesticide chemical residue tolerances or exemptions. It also requires the EPA to review all existing pesticide tolerances within 180 days of enactment to ensure compliance with these new data standards and to report to Congress on the outcomes of this review.
Proponents argue
Supporters would argue this bill enhances public health and environmental protection by ensuring that pesticide safety determinations are based on the most robust and comprehensive scientific data available, particularly regarding long-term reproductive effects. They would emphasize the importance of understanding multigenerational impacts to safeguard future generations from potential harm.
Opponents contend
Opponents might contend that this bill imposes an overly burdensome and potentially unnecessary data requirement that could significantly delay the approval or re-approval of essential pesticides, increasing costs for agricultural producers and potentially impacting food supply. They might argue that existing data requirements are sufficient or that a four-generation study is not scientifically justified for all chemicals.
The bill is short and relatively straightforward, allowing for quick comprehension of its core intent.
Section 2(a), amending 21 U.S.C. 346a(b)(2)
Mandate for Multigenerational Reproductive Toxicity Studies
This provision requires the Environmental Protection Agency (EPA) to use data from "comprehensive" multigenerational reproductive toxicity studies, involving at least four generations of test species, when making decisions about pesticide chemical residue tolerances or exemptions. This means that for any new or existing pesticide, the EPA must ensure its safety assessment includes extensive data on how the chemical affects reproduction over multiple generations.
Supporters argue
Supporters argue that requiring data from four-generation reproductive toxicity studies ensures a more thorough understanding of a pesticide's long-term effects, especially on reproductive health across generations, thereby better protecting public health and the environment. They contend that current testing may not fully capture these complex, intergenerational impacts.
Critics contend
Opponents might argue that a four-generation study is an excessive and scientifically unjustified requirement for all pesticides, leading to significant delays and costs without necessarily providing substantially more actionable safety information than existing, robust testing protocols. They may also point to ethical concerns regarding animal testing.
Tradeoffs
The provision balances the desire for comprehensive scientific understanding of pesticide impacts, particularly long-term reproductive effects, against the potential for increased regulatory burden, higher costs for industry, and possible delays in bringing new agricultural tools to market.
Section 2(a)(G)(ii)
Review of Existing Pesticide Tolerances
This clause mandates that within 180 days of the bill's enactment, the EPA Administrator must review all existing pesticide chemical residue tolerance and exemption determinations to ensure they are supported by data meeting the new four-generation reproductive toxicity study requirement. This means many currently approved pesticides will need their underlying data re-evaluated against a stricter standard.
Section 2(b)
Report to Congress on Review Outcomes
This section requires the EPA Administrator to submit a report to Congress within two years of the bill's enactment. The report must detail which pesticide chemical residue determinations were reviewed, updated, or changed as a direct result of the new data requirements and review process established by the Act.
The requirement that data for multigenerational reproductive toxicity studies must be "comprehensive, as determined by the Administrator."
Section 2(a)(G)(i)(I)
Why it matters:This is standard legislative practice to provide agencies with flexibility in defining technical terms, but it could also be seen as a way to introduce a potential loophole or point of contention in future regulatory interpretations.
Case for: Proponents would argue that this flexibility is necessary to allow the EPA to adapt to evolving scientific understanding and to apply the "comprehensive" standard appropriately across a diverse range of pesticide chemicals, ensuring scientific rigor without being overly prescriptive.
Case against: Critics might contend that this phrase introduces ambiguity and could be exploited to weaken the intent of the bill, allowing the Administrator to define "comprehensive" in a way that reduces the actual burden on industry or the thoroughness of the review, rather than strictly adhering to the spirit of enhanced safety.
Estimated impact: The impact is potentially high, as the definition of "comprehensive" will directly influence the scope and depth of the required studies and subsequent tolerance decisions.