09
Mar
EPA Asked to Deny Proposal To Use a New Not-Registered PFAS Pesticide under “Emergency” Waiver
(Beyond Pesticides, March 9, 2026) Policy and toxicology are slated to collide as the U.S. Environmental Protection (EPA) considers allowing the use of a PFAS pesticide by invoking an emergency waiver process in federal pesticide law. If authorized, EPA’s decision will permit the use of an unregistered pesticide under an emergency waiver provision—in this case an emergency caused by weed resistance to weed killers (herbicides) on the market. EPA is accepting public comments until March 16, 11:59pm EDT. Beyond Pesticides is urging the public to object to EPA approval by writing to EPA and Congress stating that herbicide resistance is not an emergency and PFAS chemicals must not be broadcast in the environment. The pesticide that is being requested for use is a new not yet registered, herbicide tetflupyrolimet (TFP), which is a PFAS chemical according to the definition of the Organization for Economic Co-operation and Development (OECD). The fact that the chemical is not registered by EPA means that it has not been reviewed in accordance with all the safety assessments reviewed under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA). The states applying for the exemptions under Section 18 of FIFRA—Missouri and Arkansas—claim that there is an emergency requiring the use of TFP because barnyardgrass is […]










