Regulations last checked for updates: Nov 22, 2024

Title 40 - Protection of Environment last revised: Nov 20, 2024
§ 152.175 - Pesticides classified for restricted use.

The following uses of pesticide products containing the active ingredients specified below have been classified for restricted use and are limited to use by or under the direct supervision of a certified applicator.

Active ingredient Formulation Use pattern Classification 1 Criteria influencing restriction
AcroleinAs sole active ingredient. No mixtures registeredAll usesRestrictedInhalation hazard to humans. Residue effects on avian species and aquatic organisms.
AldicarbAs sole active ingredientOrnamental uses (indoor and outdoor)......doOther hazards—accident history.
No mixtures registeredAgricultural crop usesUnder further evaluation
Aluminum phosphideAs sole active ingredient. No mixtures registered......do......doInhalation hazard to humans.
Azinphos methylAll liquids with a concentration greater than 13.5 pct......do......do Do.
All other formulations......doUnder futher evaluation.
CarbofuranAll concentrate suspensions and wettable powders 40% and greater......do......doAcute inhalation toxicity.
All granular formulationsRiceUnder evaluation
All granular and fertilizer formulationsAll uses except rice......do
ChloropicrinAll formulations greater than 2%All uses......doAcute inhalation toxicity.
All formulationsRodent control......doHazard to non-target organisms.
All formulations 2% and lessOutdoor uses (other than rodent control)Unclassified
ClonitralidAll wettable powders 70% and greaterAll usesRestrictedAcute inhalation toxicity.
All granulars and wettable powdersMolluscide usesRestrictedEffects on aquatic organisms.
Pressurized sprays 0.55% and lessHospital antisepticsUnclassified
DicrotophosAll liquid formulations 8% and greaterAll usesRestrictedAcute dermal toxicity; residue effects on avian species (except for tree injections).
DisulfotonAll emulsifiable concentrates 65% and greater, all emulsifiable concentrates and concentrate solutions 21% and greater with fensulfothion 43% and greater, all emulsifiable concentrates 32% and greater in combination with 32% fensulfothion and greater......doRestricted Do.
Acute inhalation toxicity.
Non-aqueous solution 95% and greaterCommercial seed treatmentRestrictedAcute dermal toxicity.
Granular formulations 10% and greaterIndoor uses (greenhouse)......doAcute inhalation toxicity.
EthopropEmulsifiable concentrates 40% and greaterAquatic uses......doAcute dermal toxicity.
All granular and fertilizer formulationsAll usesUnder evaluation
Ethyl parathionAll granular and dust formulations greater than 2 pct, fertilizer formulations, wettable powders, emulsifiable concentrates, concentrated suspensions, concentrated solutions......doRestrictedInhalation hazard to humans. Acute dermal toxicity. Residue effects on mammalian, aquatic, avian species.
Smoke fumigants......do......doInhalation hazard to humans.
Dust and granular formulations 2 pct and below......do......doOther hazards—accident history.
FenamiphosEmulsifiable concentrates 35% and greater......do......doAcute dermal toxicity.
FonofosEmulsifiable concentrates 44% and greater......do......doAcute dermal toxicity.
Emulsifiable concentrates 12.6% and less with pebulate 50.3% and lessTobaccoUnclassified
MethamidophosLiquid formulations 40% and greater......doRestrictedAcute dermal toxicity; residue effects on avian species.
Dust formulations 2.5% and greater......do......doResidue effects on avian species.
MethidathionAll formulationsAll uses except nursery stock, safflower and sunflower......do Do.
All formulationsNursery stock, safflower and sunflowerUnclassified
MethomylAs sole active ingredient in 1 pct to 2.5 baits (except 1 pct fly bait)Nondomestic outdoors-agricultural crops, ornamental and turf. All other registered usesRestrictedResidue effects on mammalian species.
All concentrated solution formulations......do......doOther hazards-accident history.
90 pct wettable powder formulations (not in water soluble bags)......do......do Do.
90 pct wettable powder formulation in water soluble bags......doUnclassified
All granular formulations......do......do
25 pct wettable powder formulations......do......do
In 1.24 pct to 2.5 pct dusts as sole active ingredient and in mixtures with fungicides and chlorinated hydrocarbon, inorganic phosphate and biological insecticides......do......do
Methyl bromideAll formulations in containers greater than 1.5 lbAll usesRestricted Do.
Containers with not more than 1.5 lb of methyl bromide with 0.25 pct to 2.0 pct chloropicrin as an indicatorSingle applications (nondomestic use) for soil treatment in closed systemsUnclassified
Container with not more than 1.5 lb having no indicatorAll usesRestricted Do.
Methyl parathionAll dust and granular formulations less than 5 pct......do......doOther hazards-accident history. All foliar applications restricted based on residue effects on mammalian and avian species.
Microencapsulated......do......doResidue effects on avian species. Hazard to bees.
All dust and granular formulations 5 pct and greater and all wettable powders and liquids......do......doAcute dermal toxicity. Residue effects on mammalian and avian species.
Nicotine (alkaloid)Liquid and dry formulations 14% and aboveIndoor (greenhouse)......doAcute inhalation toxicity.
All formulationsApplications to cranberries......doEffects on aquatic organisms.
Liquid and dry formulations 1.5% and lessAll uses (domestic and nondomestic)Unclassified
Paraquat (dichloride) and paraquat bis(methyl sulfate)All formulations and concentrations except those listed belowAll usesRestrictedOther hazards. Use and accident history, human toxicological data.
Pressurized spray formulations containing 0.44 pct Paraquat bis(methyl sulfate) and 15 pct petroleum distillates as active ingredientsSpot weed and grass control......do
Liquid fertilizers containing concentrations of 0.025 pct paraquat dichloride and 0.03 percent atrazine; 0.03 pct paraquat dichloride and 0.37 pct atrazine, 0.04 pct paraquat dichloride and 0.49 pct atrazineAll usesUnclassified
PhorateLiquid formulations 65% and greater......doRestrictedAcute dermal toxicity.
Residue effects on avian species (applies to foliar applications only).
Residue effects on mammalian species (applies to foliar application only).
All granular formulationsRice......doEffects on aquatic organisms.
PhosphamidonLiquid formulations 75% and greater......do......doAcute dermal toxicity.
Residue effects on mammalian species.
Residue effects on avian species.
Dust formulations 1.5% and greater......do......do Do.
Residue effects on mammalian species.
PicloramAll formulations and concentrations except tordon 101 R......do......doHazard to nontarget organisms (specifically nontarget plants both crop and noncrop).
Tordon 101 R forestry herbicide containing 5.4 pct picloram and 20.9 pct 2.4-DControl of unwanted trees by cut surface treatmentUnclassified
Sodium cyanide 3All capsules and ball formulationsAll usesRestrictedInhalation hazard to humans.
Sodium fluoroacetateAll solutions and dry baits......do......doAcute oral toxicity. Hazard to nontarget organisms. Use and accident history.
StrychnineAll dry baits, pellets and powder formulations greater than 0.5 pct......do......doAcute oral toxicity. Hazard to nontarget avain species. Use and accident history.
All dry baits, pellets and powder formulationsAll uses calling for burrow builders......doHazard to nontarget organisms.
All dry baits, pellets and powder formulations 0.5 pct and belowAll uses except subsoil......do Do.
......doAll subsoil usesUnclassified
SulfoteppSprays and smoke generatorsAll usesRestrictedInhalation hazard to humans.
Zinc PhosphideAll formulations 2% and lessAll domestic uses and non-domestic uses in and around buildingsUnclassified
All dry formulations 60% and greater.
All usesRestrictedAcute inhalation toxicity.
All bait formulationsNon-domestic outdoor uses (other than around buildings)......doHazard to non-target organisms.
All dry formulations 10% and greaterDomestic uses......doAcute oral toxicity.

1 “Under evaluation” means no classification decision has been made and the use/formulation in question is still under active review within EPA.

2 Percentages given are the total of dioxathion plus related compounds.

3 (Note—M-44 sodium cyanide capsules may only be used by certified applicators who have also taken the required additional training.)

[43 FR 5790, Feb. 9, 1978, as amended at 44 FR 45132, Aug. 1, 1979; 46 FR 5698, Jan. 19, 1981. Redesignated and amended at 53 FR 15988, May 4, 1988; 60 FR 32096, June 19, 1995]
authority: 7 U.S.C. 136-136y; Subpart U is also issued under 31 U.S.C. 9701.
cite as: 40 CFR 152.175