The Protect Our Farmers and Families Act of 2025 directs Congress’s will into law: it requires the EPA to treat diquat as generally causing unreasonable adverse environmental effects, cancel every registered use of the chemical, and revoke any food tolerances tied to it. The bill goes further than a normal agency review by forbidding the continued sale or use of existing commercial stocks and by barring any future reregistration.
This package matters because it replaces the EPA’s ordinary administrative process with a statutory command that takes effect on enactment. That produces an immediate compliance cliff for growers, applicators, suppliers, and regulators — and raises practical questions about residue legality, disposal of stocks, gaps in crop protection, and trade or supply-chain disruptions.
At a Glance
What It Does
The bill statutorily instructs the EPA to cancel all diquat registrations under FIFRA and to revoke associated food tolerances under the Federal Food, Drug, and Cosmetic Act. It also prohibits the sale and use of existing stocks of diquat and prevents the EPA from reregistering the chemical in the future.
Who It Affects
Domestic growers and crop desiccation users who rely on diquat, manufacturers and distributors of diquat products, aquatic weed-control contractors, food processors handling commodities with potential residues, and EPA/state regulators tasked with enforcement. Imported commodities with diquat residues also face immediate implications.
Why It Matters
This is an affirmative congressional override of the routine registration review process: it accelerates cancellation, removes tolerance-based legality for residues, and forbids a phased administrative response, setting a precedent for direct statutory intervention into pesticide approvals.
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What This Bill Actually Does
Congress’s bill gives a single, unambiguous instruction: the Environmental Protection Agency must cancel every registration for the pesticide diquat because the statute declares it to cause unreasonable adverse environmental effects. Under that direction, EPA would also be required to revoke any tolerance or tolerance exemption that currently allows diquat residues in or on food, using the mechanism in the Federal Food, Drug, and Cosmetic Act that governs tolerance revocation.
Beyond cancellation and tolerance revocation, the text prohibits continued commerce in existing commercial stocks and makes sale or use of those stocks unlawful from the moment the law takes effect. The statute also bars the EPA from reregistering diquat at any time, which forecloses the normal cycle by which a manufacturer might later submit new data or mitigation measures and seek a renewed approval.Although the bill cites specific statutory hooks in FIFRA and the FFDCA, it leaves operational details to EPA and enforcement agencies.
Practical implementation questions flow from the substance: if tolerances are revoked, any detectable diquat residue on food could become illegal; farmers and handlers may face noncompliance risks for previously treated commodities; and companies holding inventories must identify lawful disposal or return pathways. The measure does not include a transition period, emergency exemption language, or funding for enforcement and disposal, so affected parties would immediately face legal and logistical choices.
The Five Things You Need to Know
The bill directs EPA to treat diquat as causing "unreasonable adverse effects on the environment" and to cancel all registrations tied to the chemical immediately upon enactment.
It mandates that EPA revoke any FFDCA tolerance or tolerance exemption that permits diquat residues in or on food, using section 408(l)(2) authorities.
The statute prohibits the sale and use of existing commercial stocks of diquat effective on enactment, overriding the usual allowance for sale/use of previously manufactured product.
The Administrator is expressly barred from reregistering diquat under FIFRA section 4, preventing future administrative reapprovals or modified registrations.
The bill relies on explicit references to FIFRA (7 U.S.C. 136d(b), 136a–1) and the FFDCA (21 U.S.C. 346a(l)(2)), tying its directives to well-defined statutory provisions rather than creating new regulatory authorities.
Section-by-Section Breakdown
Every bill we cover gets an analysis of its key sections.
Short title
Provides the bill’s public name, the "Protect Our Farmers and Families Act of 2025." This is a stylistic provision with no operational effect beyond identifying the measure in law and citations.
Statutory cancellation and tolerance revocation
Uses FIFRA’s section 6(b) as the legal basis to declare diquat to be a pesticide that generally causes unreasonable adverse environmental effects and instructs the EPA to cancel all of its registrations. The same subsection then invokes FFDCA section 408(l)(2) to require revocation of any tolerance or tolerance exemption that would allow diquat residues in or on food. Practically, this means that residues previously lawful under federal tolerances would lose that legal protection and could subject commodities to enforcement action or market rejection.
Immediate ban on sale and use of existing stocks
Overrides the typical post-cancellation rules by prohibiting continued sale or use of existing diquat inventories effective on enactment, notwithstanding the general allowances in FIFRA section 6(a). That removes the common regulatory cushion manufacturers and distributors often rely on to sell down inventories, and forces immediate decisions about disposal, return, or seizure of product stocks.
Prohibition on future reregistration
Prevents the EPA from reregistering diquat under FIFRA section 4 (reregistration and new data submissions). This is a durable bar: even if new scientific data or mitigation measures appear later, the agency is statutorily constrained from granting a new registration for the active ingredient.
This bill is one of many.
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Explore Agriculture in Codify Search →Who Benefits and Who Bears the Cost
Every bill creates winners and losers. Here's who stands to gain and who bears the cost.
Who Benefits
- Environmental and public-health advocacy groups — the bill removes a pesticide they consider hazardous and creates an immediate reduction in permitted uses and legal residues, aligning law with their exposure concerns.
- Communities near treated sites and surface waters — fewer approved diquat applications could reduce local ecological and human exposure pathways linked to spray drift or aquatic use.
- Producers and vendors of non-chemical or alternative weed-management tools — a forced market exit for diquat creates commercial opportunity for mechanical, biological, or alternative chemical controls.
Who Bears the Cost
- Manufacturers and formulators of diquat products — they lose registration-based revenue, face stranded inventory, and cannot seek reregistration to restore market access.
- Growers and applicators who rely on diquat for crop desiccation or aquatic weed control — they must find and validate alternatives quickly, potentially at higher cost or reduced effectiveness.
- Food processors, exporters, and commodity handlers — revocation of tolerances risks making legally harvested commodities unlawful if residues remain, complicating domestic sales and international trade compliance.
- Aquatic weed-management contractors and municipal vector-control programs — sudden prohibition on use can force operational pauses, adaptive procurement, and potential contractual liabilities.
- State pesticide regulatory programs and EPA field offices — enforcement and disposal tasks shift to agencies that must execute the ban without additional implementation funding.
Key Issues
The Core Tension
The central dilemma is straightforward: eliminate a chemical now to remove exposure risks and satisfy environmental and public-health objectives, or preserve a measured administrative process to avoid abrupt disruption to agricultural operations, supply chains, and legal predictability. The bill resolves that tension by prioritizing immediate removal, but doing so creates collateral problems — legal, logistical, and agronomic — that the text does not resolve.
The bill intentionally forecloses the administrative path EPA typically follows for cancellation and tolerance revocation, which raises a suite of implementation challenges. An immediate ban without a transition period or statutory guidance leaves open how to manage already-applied acres, harvested commodities with trace residues, and the safe disposal of commercial stocks.
Revoking tolerances instantly can render lawful pre-enactment residues illegal, producing liability for growers and processors and potential food-safety or trade disruptions unless enforcement discretion or emergency relief is later provided.
There are also legal and operational ambiguities the text does not address. It does not specify enforcement mechanisms, civil penalty structures tied to post-enactment residues, or whether existing emergency exemptions under FIFRA (section 18) could remain available.
The statutory prohibition on reregistration removes an administrative remedy that normally lets companies submit new science or use restrictions; that trade-off increases the likelihood of litigation from registrants claiming regulatory taking or procedural due-process concerns. Finally, a rapid withdrawal could prompt substitution toward other herbicides whose environmental or health profiles may be worse, producing perverse net outcomes if not paired with guidance and support for safer alternatives.
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