EPA Establishes Tolerances for Tiafenacil Pesticide Residues
Published Date: 4/7/2025
Rule
Summary
The EPA just set safe limits for tiafenacil pesticide leftovers on several foods, thanks to a request from ISK Biosciences. This means farmers and food producers know exactly how much tiafenacil is allowed, keeping our food safe. These new rules kick in soon and help protect both consumers and businesses without extra costs.
Analyzed Economic Effects
1 provisions identified: 1 benefits, 0 costs, 0 mixed.
Tiafenacil residue limits set
The EPA established legal tolerances (maximum residue limits) for the pesticide tiafenacil on multiple food commodities. ISK Biosciences Corporation requested these tolerances under the Federal Food, Drug, and Cosmetic Act (FFDCA). The tolerances define how much tiafenacil is allowed on those foods and are meant to keep food safe and give farmers and food producers clear limits.
Your PRIA Score
Personalized for You
How does this regulation affect your finances?
Sign up for a PRIA Policy Scan to see your personalized alignment score for this federal register document and every other regulation we track. We analyze your financial profile against policy provisions to show you exactly what matters to your wallet.
Key Dates
Department and Agencies
Related Federal Register Documents
2026-10086 — Extending the Compliance Deadline for the PFOA and PFOS Maximum Contaminant Levels
The EPA is giving water systems more time to meet safety rules for two harmful chemicals, PFOA and PFOS, by extending the deadline from April 2029 to April 2031 if they ask for it. This helps water providers get ready without rushing, keeping our drinking water safe. The EPA wants your thoughts and will hold a public hearing in July 2026 to hear from everyone.
2026-10085 — Rescission of Regulatory Determinations and Removal of Related Provisions for Four PFAS Substances (PFHxS, PFNA, HFPO-DA (GenX), and the Mixture of These Three PFAS Plus PFBS)
The EPA is proposing to undo its rules for four PFAS chemicals (PFHxS, PFNA, GenX, and a mix including PFBS) in drinking water because the original process wasn’t done right. This means public water systems won’t have to monitor or treat these chemicals for now. People and water providers should weigh in by July 20, 2026, and a virtual hearing happens July 7.
2026-09895 — Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category-Unmanaged Combustion Residual Leachate
The EPA is updating rules for steam electric power plants to better control dirty water leaking from leftover coal waste. This change affects existing power plants and is expected to save up to $1 billion a year while protecting water quality. Comments on the proposal are open until June 17, 2026, so now’s the time to speak up!
2026-09524 — Begin Actual Construction in the New Source Review (NSR) Preconstruction Permitting Program
The EPA is updating rules about when companies can start building big projects that might affect air quality. Now, they can begin building parts that don’t release pollution before getting a full air permit, making things clearer and easier. This change mainly affects businesses planning major construction and could speed up projects without extra costs, but comments are due by June 29, 2026.
2026-09179 — Definition of Hazardous Waste Applicable to Corrective Action for Releases From Solid Waste Management Units; Withdrawal
The EPA has decided to cancel its plan to change the rules about what counts as hazardous waste for cleaning up pollution at certain waste sites. This means businesses and cleanup crews won’t have to deal with the confusing new rules that were proposed. The withdrawal takes effect immediately, so no extra costs or changes will happen right now.
2026-08750 — Extension of Postponement of Effectiveness for Certain Provisions of Trichloroethylene (TCE); Regulation Under the Toxic Substances Control Act (TSCA)
The EPA is hitting the pause button again on some rules about a chemical called TCE, which is used in workplaces. This means certain limited uses of TCE won’t have to follow new restrictions just yet, while courts review the rules. If you work with TCE, this delay gives you more time before changes kick in, starting May 18, 2026.
Previous / Next Documents
Previous: 2025-05909 — Choline Chloride in Pesticide Formulations; Exemption From the Requirement of a Tolerance
The EPA says choline chloride, used in some pesticide products on animals, is safe enough that it doesn’t need a residue limit. This means companies like Emery Olochemicals can keep using it without extra testing or fees. If you’re in farming or animal care, this change makes things simpler and quicker starting now!
Next: 2025-05938 — Fisheries of the Northeastern United States; Monkfish Fishery; 2025 Monkfish Specifications
Fishermen and seafood businesses in the Northeast will follow new rules for catching monkfish in 2025. These rules set safe catch limits to keep monkfish populations healthy and make sure everyone can enjoy fishing for years to come. The changes kick in next year and help balance fishing fun with smart ocean care.