{"id":41104,"date":"2026-03-09T00:01:02","date_gmt":"2026-03-09T04:01:02","guid":{"rendered":"https:\/\/beyondpesticides.org\/dailynewsblog\/?p=41104"},"modified":"2026-03-12T16:13:12","modified_gmt":"2026-03-12T20:13:12","slug":"epa-asked-to-deny-proposal-to-use-a-new-not-registered-pfas-pesticide-under-emergency-waiver","status":"publish","type":"post","link":"https:\/\/beyondpesticides.org\/dailynewsblog\/2026\/03\/epa-asked-to-deny-proposal-to-use-a-new-not-registered-pfas-pesticide-under-emergency-waiver\/","title":{"rendered":"EPA Asked to Deny Proposal To Use a New Not-Registered PFAS Pesticide under \u201cEmergency\u201d Waiver"},"content":{"rendered":"\r\n

(Beyond Pesticides<\/em>, March 9, 2026) Policy and toxicology are slated to collide as the U.S. Environmental Protection Agency (EPA) considers allowing the use of a PFAS pesticide by invoking an emergency waiver process in federal pesticide law. If authorized, EPA\u2019s decision will permit the use of an unregistered pesticide under an emergency waiver provision\u2014in 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\u00a0Congress stating that herbicide resistance is not an emergency and PFAS chemicals must not be broadcast in the environment.<\/a>\u00a0<\/strong><\/p>\r\n

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\u00a0definition<\/a>\u00a0of the\u00a0Organisation for Economic Co-operation and Development<\/a>\u00a0(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<\/em> (FIFRA).<\/p>\r\n

The states applying for the exemptions under Section 18 of FIFRA\u2014Missouri<\/a>\u00a0and\u00a0Arkansas<\/a>\u2014claim that there is an emergency requiring the use of TFP because barnyardgrass is resistant to the herbicides currently allowed to be used in rice.\u00a0<\/p>\r\n

Among other issues, the requirements in EPA regulations for emergency exemptions require that\u2014in addition to the lack of effective available pesticides\u2014the situation must be \u201curgent\u201d and \u201cnon-routine,\u201d and, at the same time, \u201c[n]o economically or environmentally feasible alternative practices which provide adequate control are available.\u201d Most plant scientists say and the vast body of scientific literature finds that, according to a study in the Journal of Biological Chemistry<\/a>, the \u201cuse of synthetic herbicides over the past 70 years has imposed strong and widespread selection pressure, leading to the evolution of herbicide resistance in hundreds of weed species.\u201d It continues, \u201cBoth target-site resistance (TSR) and nontarget-site resistance (NTSR) mechanisms have evolved to most herbicide classes.\u201d Plant resistance to herbicides is not an emergency, but a predictable outcome of the reliance on herbicides. This is widely known to land managers, including farmers, and extensively evaluated in the scientific literature<\/a>. (See also here<\/a>.)<\/p>\r\n

The emergency exemption applications from Arkansas and Missouri demonstrate the failure of herbicides to control barnyardgrass in rice. As regulators, land grant agricultural institutions, and land managers ignore the inevitable resistance \u201cemergency,\u201d organic rice production is successful\u2014and commands a 56.1% price advantage over rice produced with chemical-intensive methods. Organic production productively and profitably uses a range of cultural, mechanical, and biological practices, as discussed in a literature review in the International Journal of Environment and Climate Change<\/a>. In this context, ecological farming practitioners and advocates maintain that the proposed use does not meet the definition of an emergency.\u00a0<\/p>\r\n

A September 2018 report from EPA\u2019s Office of Inspector General (OIG)\u00a0identifies issues important to protecting health and the environment, including a tightening of the emergency exemption program. The EPA’s response to the report left many of these problems unresolved.\u202f”Measures and Management Controls Needed to Improve EPA’s Pesticide Emergency Exemption Process<\/a>” (Report No. 18-P-0281, September 25, 2018), finds that the agency’s practice of routinely granting \u201cemergency\u201d approval for pesticides through its Section 18 (of the\u00a0Federal Insecticide, Fungicide, Rodenticide Act<\/em>\/FIFRA) program does not effectively address risks to human health or the environment.\u00a0<\/p>\r\n

After repeated use of toxic herbicides, including clomazone, quinclorac, propanil, acetolactate synthase inhibitors, and acetyl CoA carboxylase inhibitors, the states seeking the emergency pesticide use propose to pour yet another toxic chemical onto rice fields. According to the product label included in the applications, TFP poses hazards to surface water and groundwater: \u201cThis product may impact surface water quality due to runoff of rainwater. This is especially true for poorly draining soils and soils with shallow groundwater. This product is classified as having a high potential for reaching surface water via runoff for several months or more after application. .\u00a0 . This chemical may leach into groundwater if used in areas where soils are permeable, particularly where the water table is shallow.\u201d\u00a0<\/p>\r\n

Furthermore, TFP is a PFAS chemical. PFAS chemicals have become the\u00a0new DDT<\/a>. Like DDT, PFAS are persistent, leading to the nickname \u201cforever chemicals,\u201d and they are highly toxic. Because of their toxicity and persistence, the agrichemical industry\u00a0looks to these chemicals<\/a>\u00a0for new pesticides. Given the likelihood of water contamination, it is disturbing that drinking water health advisories issued by EPA show\u202fPFAS levels<\/a>\u202fas low as .02 parts per trillion (ppt) have the potential to cause adverse health effects for public health.\u00a0<\/p>\r\n

EPA continues to ignore the widely accepted definition of PFAS, also known as \u201cforever chemicals\u201d given their persistence, which is supported by scientists and by OECD. EPA’s current definition\u00a0is at odds with the prevalent scientific thinking of scientists worldwide who have challenged the agency’s position and its resulting risk assessments. The OECD definition should be used as a basis for risk assessments. Also of concern is that TFP, like many other PFAS, breaks down into trifluoroacetic acid (TFA), which threatens aquatic and terrestrial ecosystems as well as health through liver toxicity and \u201cpossible harmful impacts on the development of embryos in humans and mammals,\u201d according to studies.\u00a0<\/p>\r\n

Beyond Pesticides is urging the public to object to EPA of the emergency exemption for approval of tetflupyrolimet (TFP) by writing to EPA, by March 16, 11:50pm EDT, and\u00a0Congress stating that herbicide resistance is not an emergency and PFAS chemicals must not be broadcast in the environment.<\/a><\/strong> with the following comment:<\/p>\r\n

Letter to members of Congress:<\/strong>
\r\n<\/u>EPA is considering granting \u201cemergency\u201d exemptions for the use of the unregistered herbicide tetflupyrolimet (TFP), which is a PFAS chemical according to the definition of the Organisation for Economic Co-operation and Development (OECD). The states applying for the exemptions\u2014Missouri and Arkansas\u2014claim that there is an emergency requiring the use of TFP because barnyardgrass is resistant to the herbicides currently allowed to be used in rice.<\/p>\r\n

Among other things, the requirements in EPA regulations for emergency exemptions require that\u2014in addition to the lack of effective pesticides\u2014the situation must be \u201curgent\u201d and \u201cnon-routine,\u201d and \u201c[n]o economically or environmentally feasible alternative practices which provide adequate control are available.\u201d Herbicide resistance is not an emergency, but a predictable outcome of reliance on herbicides. The applications from Arkansas and Missouri demonstrate the failure of herbicides to control barnyardgrass in rice. Yet organic rice production is successful\u2014and commands a 56.1% price advantage over rice produced by chemically-intensive methods. Thus, this proposed use does not meet the definition of an emergency.<\/p>\r\n

A September 2018 report from EPA\u2019s Office of Inspector General (OIG) identified issues important to protecting health and the environment. The EPA’s response to the report left many of these problems unresolved.\u202f\u201cMeasures and Management Controls Needed to Improve EPA’s Pesticide Emergency Exemption Process\u201d (Report No. 18-P-0281, September 25, 2018), finds that the agency’s practice of routinely granting \u201cemergency\u201d approval for pesticides through its Section 18 program does not effectively address risks to human health or the environment. The process is still in need of improvement.<\/p>\r\n

After repeated use of toxic herbicides, including clomazone, quinclorac, propanil, acetolactate synthase inhibitors, and acetyl CoA carboxylase inhibitors, these states propose to pour yet another toxic chemical onto rice fields. According to the product label included in the applications, TFP poses hazards to surface water and groundwater: \u201cThis product may impact surface water quality due to runoff of rainwater. This is especially true for poorly draining soils and soils with shallow ground water. This product is classified as having a high potential for reaching surface water via runoff for several months or more after application.\u201d \u201cThis chemical may leach into groundwater if used in areas where soils are permeable, particularly where the water table is shallow.\u201d<\/p>\r\n

Furthermore, TFP is a PFAS chemical. PFAS chemicals have become the new DDT\u2014miracle substances that share the less beneficial characteristics of DDT. Like DDT, PFAS are persistent, leading to the nickname \u201cforever chemicals,\u201d and they are highly toxic. Their toxicity has led the agrichemical industry to look to them for new pesticides. Given the likelihood of water contamination, it is disturbing that drinking water health advisories issued by EPA show\u202fPFAS levels\u202fas low as .02 parts per trillion (ppt) have the potential to cause adverse health effects for public health.<\/p>\r\n

EPA continues to ignore the widely accepted definition of PFAS, also known as \u201cforever chemicals,\u201d that is supported by scientists and by OECD. EPA\u2019s current definition is at odds with the prevalent scientific thinking of scientists worldwide who have challenged the agency\u2019s position and resulting risk assessments. The OECD definition should be used as a basis for risk assessments. Also of concern is that TFP, like many other PFAS, breaks down into trifluoroacetic acid (TFA), which threatens aquatic and terrestrial ecosystems as well as health through liver toxicity and possible harmful impacts on the development of embryos in humans and mammals.<\/p>\r\n

Please urge EPA to deny emergency exemptions for tetflupyrolimet and all PFAS pesticides, as defined by OECD.<\/p>\r\n

Thank you<\/p>\r\n

Suggested comment to EPA:\u00a0<\/strong>(Comment period ends on March 16 at 11:59pm EDT.]
\r\nEPA is considering granting \u201cemergency\u201d exemptions for the use of the unregistered herbicide tetflupyrolimet (TFP), which is a PFAS chemical according to the definition of the Organisation for Economic Co-operation and Development (OECD). The states applying for the exemptions\u2014Missouri and Arkansas\u2014claim that there is an emergency requiring the use of TFP because barnyardgrass is resistant to the herbicides currently allowed to be used in rice.\u00a0<\/p>\r\n

Among other things, the requirements in EPA regulations for emergency exemptions require that\u2014in addition to the lack of\u00a0effective pesticides\u2014the situation must be \u201curgent\u201d and \u201cnon-routine,\u201d and \u201c[n]o economically or environmentally feasible alternative practices which provide adequate control are available.\u201d Herbicide resistance is not an emergency, but a predictable outcome of reliance on herbicides.\u00a0The applications\u00a0from Arkansas and Missouri\u00a0demonstrate\u00a0the failure of herbicides to control\u00a0barnyardgrass\u00a0in rice. Yet organic rice production is successful\u2014and commands a 56.1% price advantage over rice produced by chemically intensive methods.\u00a0Thus, this proposed use does not meet the definition of an emergency.\u00a0<\/p>\r\n

A September 2018 report from EPA\u2019s Office of Inspector General (OIG)\u00a0identified\u00a0issues important to\u00a0protecting\u00a0health and the environment. The EPA’s response to the report left many of these problems unresolved.\u202f\u201cMeasures and Management Controls Needed to Improve EPA’s Pesticide Emergency Exemption Process\u201d\u00a0(Report No. 18-P-0281, September 25, 2018), finds that the agency’s practice of routinely granting \u201cemergency\u201d approval for pesticides through its Section 18 program does not effectively\u00a0address\u00a0risks to human health or the environment. The process is still in need of improvement.\u00a0<\/p>\r\n

After repeated use of toxic herbicides, including clomazone, quinclorac, propanil, acetolactate synthase inhibitors, and acetyl CoA carboxylase inhibitors, these states propose to pour yet another toxic chemical onto rice fields. According to the product label included in the applications, TFP poses hazards to surface water and groundwater: \u201cThis product may impact surface water quality due to runoff of rainwater. This is especially true for poorly draining soils and soils with shallow groundwater. This product is classified as having a high potential for reaching surface water via runoff for several months or more after application.\u201d \u201cThis chemical may leach into groundwater if used in areas where soils are permeable, particularly where the water table is shallow.\u201d\u00a0<\/p>\r\n

Furthermore, TFP is a PFAS chemical. PFAS chemicals have become the new DDT\u2014miracle substances that share the less beneficial characteristics of DDT. Like DDT, PFAS are persistent, leading to the nickname \u201cforever chemicals,\u201d and they are highly toxic. Their toxicity has led the agrichemical industry to\u00a0look to them\u00a0for new pesticides.\u00a0Given the likelihood of water contamination, it is disturbing that drinking water health advisories issued by EPA show\u202fPFAS levels\u202fas low as .02 parts per trillion (ppt) have the potential to cause adverse health effects for public health.\u00a0<\/p>\r\n

EPA continues to ignore the widely accepted definition of PFAS, also known as \u201cforever chemicals,\u201d that is supported by scientists and by OECD. EPA\u2019s current\u00a0definition\u00a0is\u00a0at odds\u00a0with the prevalent scientific thinking of scientists worldwide who have challenged the agency\u2019s position and resulting risk assessments. The OECD definition should be used as a basis for risk assessments.\u00a0Also of concern is that TFP, like many other PFAS, breaks down into trifluoroacetic acid (TFA), which threatens aquatic and terrestrial ecosystems as well as health through liver toxicity and possible harmful impacts on the development of embryos in humans and mammals.\u00a0<\/p>\r\n

Please deny the emergency exemptions\u00a0for\u00a0tetflupyrolimet\u00a0and all PFAS pesticides, as defined by OECD.\u00a0<\/p>\r\n

 <\/p>\r\n","protected":false},"excerpt":{"rendered":"

(Beyond Pesticides, March 9, 2026) Policy and toxicology are slated to collide as the U.S. Environmental Protection Agency (EPA) considers allowing the use of a PFAS pesticide by invoking an emergency waiver process in federal pesticide law. If authorized, EPA\u2019s decision will permit the use of an unregistered pesticide under an emergency waiver provision\u2014in 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\u00a0Congress stating that herbicide resistance is not an emergency and PFAS chemicals must not be broadcast in the environment.\u00a0 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\u00a0definition\u00a0of the\u00a0Organisation for Economic Co-operation and Development\u00a0(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\u2014Missouri\u00a0and\u00a0Arkansas\u2014claim that there is an emergency requiring the use of TFP because […]<\/p>\n","protected":false},"author":2,"featured_media":41131,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[249,2,2504,354,494,2503,1],"tags":[],"class_list":["post-41104","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-agriculture","category-alternativesorganics","category-emergency-exemption-environmental-protection-agency-epa","category-environmental-protection-agency-epa","category-herbicides","category-tetflupyrolimet-tfp","category-uncategorized"],"yoast_head":"\nEPA Asked to Deny Proposal To Use a New Not-Registered PFAS Pesticide under \u201cEmergency\u201d Waiver - Beyond Pesticides Daily News Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/beyondpesticides.org\/dailynewsblog\/2026\/03\/epa-asked-to-deny-proposal-to-use-a-new-not-registered-pfas-pesticide-under-emergency-waiver\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"EPA Asked to Deny Proposal To Use a New Not-Registered PFAS Pesticide under \u201cEmergency\u201d Waiver - Beyond Pesticides Daily News Blog\" \/>\n<meta property=\"og:description\" content=\"(Beyond Pesticides, March 9, 2026) Policy and toxicology are slated to collide as the U.S. Environmental Protection Agency (EPA) considers allowing the use of a PFAS pesticide by invoking an emergency waiver process in federal pesticide law. If authorized, EPA\u2019s decision will permit the use of an unregistered pesticide under an emergency waiver provision\u2014in 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\u00a0Congress stating that herbicide resistance is not an emergency and PFAS chemicals must not be broadcast in the environment.\u00a0 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\u00a0definition\u00a0of the\u00a0Organisation for Economic Co-operation and Development\u00a0(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). 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If authorized, EPA\u2019s decision will permit the use of an unregistered pesticide under an emergency waiver provision\u2014in 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\u00a0Congress stating that herbicide resistance is not an emergency and PFAS chemicals must not be broadcast in the environment.\u00a0 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\u00a0definition\u00a0of the\u00a0Organisation for Economic Co-operation and Development\u00a0(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). 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