Reference Tool

RCRA Hazardous Waste Codes

EPA hazardous waste codes with plain-English descriptions, TCLP thresholds, and CFR citations. Sourced from 40 CFR Part 261 (March 2026).

Showing 566 of 566 codes

CodeName / Description
D001
40 CFR 261.21

Ignitable Waste

Liquid with flash point <60°C (140°F), non-liquid that ignites under standard temperature/pressure, an ignitable compressed gas, or a DOT-classified oxidizer. Common examples: acetone, ethanol, MEK, gasoline.

D002
40 CFR 261.22

Corrosive Waste

Aqueous waste with pH ≤2 or ≥12.5, or corrodes SAE 1020 steel at >6.35 mm/year. Common examples: battery acid (H₂SO₄), sodium hydroxide solutions, hydrochloric acid.

D003
40 CFR 261.23

Reactive Waste

Unstable waste that reacts violently with water, forms toxic gases with water, is shock-sensitive, detonatable, or generates toxic cyanide/sulfide gases. Common examples: sodium metal, dry chlorine, concentrated peroxides, lithium batteries.

D004
40 CFR 261.24

Arsenic (Toxicity)

TCLP leachate exceeds 5.0 mg/L arsenic. Found in wood preservatives (CCA), pesticide wastes, and semiconductor manufacturing residues.

TCLP threshold: 5.0 mg/L (TCLP)
D005
40 CFR 261.24

Barium (Toxicity)

TCLP leachate exceeds 100.0 mg/L barium. Found in oil and gas drilling muds, paint pigments, and cathode ray tube glass.

TCLP threshold: 100.0 mg/L (TCLP)
D006
40 CFR 261.24

Cadmium (Toxicity)

TCLP leachate exceeds 1.0 mg/L cadmium. Found in nickel-cadmium batteries, electroplating sludges, and some yellow/orange paint pigments.

TCLP threshold: 1.0 mg/L (TCLP)
D007
40 CFR 261.24

Chromium (Toxicity)

TCLP leachate exceeds 5.0 mg/L chromium. Found in chrome plating wastes, leather tanning sludge, stainless steel grinding dust, and cooling tower blowdown.

TCLP threshold: 5.0 mg/L (TCLP)
D008
40 CFR 261.24

Lead (Toxicity)

TCLP leachate exceeds 5.0 mg/L lead. Found in lead-acid batteries, lead paint debris, solder wastes, and smelter slag.

TCLP threshold: 5.0 mg/L (TCLP)
D009
40 CFR 261.24

Mercury (Toxicity)

TCLP leachate exceeds 0.2 mg/L mercury. Found in fluorescent lamp phosphor, broken thermometers, dental amalgam, and mercury-containing switches.

TCLP threshold: 0.2 mg/L (TCLP)
D010
40 CFR 261.24

Selenium (Toxicity)

TCLP leachate exceeds 1.0 mg/L selenium. Found in photocopier drum wastes, glass manufacturing residues, and some agricultural pesticide wastes.

TCLP threshold: 1.0 mg/L (TCLP)
D011
40 CFR 261.24

Silver (Toxicity)

TCLP leachate exceeds 5.0 mg/L silver. Found in photographic processing wastes (fixer), X-ray developer, and electroplating sludge.

TCLP threshold: 5.0 mg/L (TCLP)
D012
40 CFR 261.24

Endrin (Toxicity)

TCLP leachate exceeds 0.02 mg/L endrin. Banned organochlorine insecticide. Found in legacy agricultural soils and contaminated structures.

TCLP threshold: 0.02 mg/L (TCLP)
D013
40 CFR 261.24

Lindane (Toxicity)

TCLP leachate exceeds 0.4 mg/L lindane (gamma-HCH). Organochlorine insecticide historically used in agriculture and timber treatment.

TCLP threshold: 0.4 mg/L (TCLP)
D014
40 CFR 261.24

Methoxychlor (Toxicity)

TCLP leachate exceeds 10.0 mg/L methoxychlor. Organochlorine pesticide developed as a DDT replacement; all US registrations cancelled by EPA.

TCLP threshold: 10.0 mg/L (TCLP)
D015
40 CFR 261.24

Toxaphene (Toxicity)

TCLP leachate exceeds 0.5 mg/L toxaphene. Polychlorinated camphene pesticide banned in the US since 1990. Found in legacy agricultural chemical storage.

TCLP threshold: 0.5 mg/L (TCLP)
D016
40 CFR 261.24

2,4-D (Toxicity)

TCLP leachate exceeds 10.0 mg/L 2,4-dichlorophenoxyacetic acid. Still an active broadleaf herbicide. Check waste determinations when discarding expired or unused product.

TCLP threshold: 10.0 mg/L (TCLP)
D017
40 CFR 261.24

2,4,5-TP / Silvex (Toxicity)

TCLP leachate exceeds 1.0 mg/L 2,4,5-TP. Herbicide cancelled by EPA in 1985. Still found in legacy pesticide storage and old agricultural sites.

TCLP threshold: 1.0 mg/L (TCLP)
D018
40 CFR 261.24

Benzene (Toxicity)

TCLP leachate exceeds 0.5 mg/L benzene. Known human carcinogen; ubiquitous in petroleum products, coal tar, and chemical manufacturing wastes.

TCLP threshold: 0.5 mg/L (TCLP)
D019
40 CFR 261.24

Carbon Tetrachloride (Toxicity)

TCLP leachate exceeds 0.5 mg/L carbon tetrachloride. Formerly used as a solvent and fire suppressant; now restricted. Found in legacy laboratory and dry-cleaning wastes.

TCLP threshold: 0.5 mg/L (TCLP)
D020
40 CFR 261.24

Chlordane (Toxicity)

TCLP leachate exceeds 0.03 mg/L chlordane. Organochlorine pesticide banned in 1988; very persistent. Found in legacy termite-treatment soils around older buildings.

TCLP threshold: 0.03 mg/L (TCLP)
D021
40 CFR 261.24

Chlorobenzene (Toxicity)

TCLP leachate exceeds 100.0 mg/L chlorobenzene. Industrial solvent and chemical intermediate used in paint, adhesive, and pesticide manufacturing.

TCLP threshold: 100.0 mg/L (TCLP)
D022
40 CFR 261.24

Chloroform (Toxicity)

TCLP leachate exceeds 6.0 mg/L chloroform (trichloromethane). Formerly used as an anesthetic. Found in pharmaceutical lab wastes and chlorination byproducts.

TCLP threshold: 6.0 mg/L (TCLP)
D023
40 CFR 261.24

o-Cresol (Toxicity)

TCLP leachate exceeds 200.0 mg/L o-cresol. If o-, m-, p-cresol isomers cannot be differentiated, use total cresol threshold (D026). Found in coal tar and wood preservative wastes.

TCLP threshold: 200.0 mg/L (TCLP)
D024
40 CFR 261.24

m-Cresol (Toxicity)

TCLP leachate exceeds 200.0 mg/L m-cresol. If isomers cannot be differentiated, use D026 (total cresol). Found in coal tar, phenolic resin, and wood preservative wastes.

TCLP threshold: 200.0 mg/L (TCLP)
D025
40 CFR 261.24

p-Cresol (Toxicity)

TCLP leachate exceeds 200.0 mg/L p-cresol. If isomers cannot be differentiated, use D026 (total cresol). Same coal tar and wood treatment waste sources as D023/D024.

TCLP threshold: 200.0 mg/L (TCLP)
D026
40 CFR 261.24

Cresol — Total (Toxicity)

Used when o-, m-, and p-cresol isomers cannot be differentiated analytically. Total cresol TCLP threshold is 200.0 mg/L. Applies to any cresol-containing waste where isomer separation is not feasible.

TCLP threshold: 200.0 mg/L (TCLP)
D027
40 CFR 261.24

1,4-Dichlorobenzene (Toxicity)

TCLP leachate exceeds 7.5 mg/L 1,4-dichlorobenzene. Used as a deodorant, fumigant, moth repellent, and intermediate in pesticide manufacturing.

TCLP threshold: 7.5 mg/L (TCLP)
D028
40 CFR 261.24

1,2-Dichloroethane (Toxicity)

TCLP leachate exceeds 0.5 mg/L 1,2-dichloroethane (ethylene dichloride). Industrial solvent and PVC manufacturing intermediate. Common in chlorinated solvent wastes.

TCLP threshold: 0.5 mg/L (TCLP)
D029
40 CFR 261.24

1,1-Dichloroethylene (Toxicity)

TCLP leachate exceeds 0.7 mg/L 1,1-dichloroethylene. Used in synthesis of polyvinylidene chloride (Saran wrap) and other polymers.

TCLP threshold: 0.7 mg/L (TCLP)
D030
40 CFR 261.24

2,4-Dinitrotoluene (Toxicity)

TCLP leachate exceeds 0.13 mg/L 2,4-DNT. Intermediate in toluene diisocyanate (TDI) and munitions production. Found at chemical plants and former military sites.

TCLP threshold: 0.13 mg/L (TCLP)
D031
40 CFR 261.24

Heptachlor (Toxicity)

TCLP leachate exceeds 0.008 mg/L heptachlor (includes heptachlor epoxide). Organochlorine insecticide banned in 1988. Found in legacy soil and termite treatment wastes.

TCLP threshold: 0.008 mg/L (TCLP)
D032
40 CFR 261.24

Hexachlorobenzene (Toxicity)

TCLP leachate exceeds 0.13 mg/L hexachlorobenzene. Persistent organic pollutant; formerly used as a fungicide. Found in pesticide and chlorinated chemical manufacturing wastes.

TCLP threshold: 0.13 mg/L (TCLP)
D033
40 CFR 261.24

Hexachlorobutadiene (Toxicity)

TCLP leachate exceeds 0.5 mg/L hexachlorobutadiene. Byproduct of chlorinated solvent and carbon tetrachloride manufacturing. Persistent and bioaccumulative.

TCLP threshold: 0.5 mg/L (TCLP)
D034
40 CFR 261.24

Hexachloroethane (Toxicity)

TCLP leachate exceeds 3.0 mg/L hexachloroethane. Used as a degassing agent in aluminum processing and in military smoke/tracer compositions.

TCLP threshold: 3.0 mg/L (TCLP)
D035
40 CFR 261.24

Methyl Ethyl Ketone / MEK (Toxicity)

TCLP leachate exceeds 200.0 mg/L MEK (2-butanone). Common industrial solvent. Frequently present in spent solvent wastes from painting, printing, and coating operations.

TCLP threshold: 200.0 mg/L (TCLP)
D036
40 CFR 261.24

Nitrobenzene (Toxicity)

TCLP leachate exceeds 2.0 mg/L nitrobenzene. Industrial intermediate for aniline, dyes, and pharmaceuticals. Found in chemical and dye manufacturing wastes.

TCLP threshold: 2.0 mg/L (TCLP)
D037
40 CFR 261.24

Pentachlorophenol / PCP (Toxicity)

TCLP leachate exceeds 100.0 mg/L PCP. Still used as a wood preservative for utility poles and railroad ties. Common at legacy wood treatment facilities.

TCLP threshold: 100.0 mg/L (TCLP)
D038
40 CFR 261.24

Pyridine (Toxicity)

TCLP leachate exceeds 5.0 mg/L pyridine. Solvent and chemical intermediate used in pharmaceutical, agrochemical, and food flavoring manufacturing.

TCLP threshold: 5.0 mg/L (TCLP)
D039
40 CFR 261.24

Tetrachloroethylene / PERC (Toxicity)

TCLP leachate exceeds 0.7 mg/L PERC. Primary dry-cleaning solvent and metal degreaser. One of the most common chlorinated groundwater contaminants in the US.

TCLP threshold: 0.7 mg/L (TCLP)
D040
40 CFR 261.24

Trichloroethylene / TCE (Toxicity)

TCLP leachate exceeds 0.5 mg/L TCE. Industrial degreaser; classified as a known human carcinogen (IARC Group 1, kidney cancer). Extremely widespread groundwater contaminant.

TCLP threshold: 0.5 mg/L (TCLP)
D041
40 CFR 261.24

2,4,5-Trichlorophenol (Toxicity)

TCLP leachate exceeds 400.0 mg/L 2,4,5-TCP. Associated with dioxin (TCDD) contamination as a manufacturing byproduct. Found in legacy herbicide production wastes.

TCLP threshold: 400.0 mg/L (TCLP)
D042
40 CFR 261.24

2,4,6-Trichlorophenol (Toxicity)

TCLP leachate exceeds 2.0 mg/L 2,4,6-TCP. Used as a biocide and wood preservative; probable human carcinogen. Found in pesticide and chemical manufacturing wastes.

TCLP threshold: 2.0 mg/L (TCLP)
D043
40 CFR 261.24

Vinyl Chloride (Toxicity)

TCLP leachate exceeds 0.2 mg/L vinyl chloride. Monomer for PVC plastics production; known human carcinogen. Found in chlorinated solvent and PVC manufacturing wastes.

TCLP threshold: 0.2 mg/L (TCLP)
F001
40 CFR 261.31

Spent Halogenated Degreasing Solvents

Spent solvents used in degreasing tetrachloroethylene, trichloroethylene, methylene chloride, 1,1,1-trichloroethane, carbon tetrachloride, and chlorinated fluorocarbons; and still bottoms from their recovery.

F002
40 CFR 261.31

Spent Halogenated Solvents (Non-Degreasing)

Spent solvents used in applications other than degreasing tetrachloroethylene, methylene chloride, trichloroethylene, 1,1,1-trichloroethane, chlorobenzene, 1,1,2-trichloro-1,2,2-trifluoroethane, and still bottoms from their recovery.

F003
40 CFR 261.31

Spent Non-Halogenated Solvents (Xylene, Acetone, etc.)

Spent solvents xylene, acetone, ethyl acetate, ethyl benzene, ethyl ether, methyl isobutyl ketone, n-butyl alcohol, cyclohexanone, methanol, and still bottoms from their recovery.

F004
40 CFR 261.31

Spent Non-Halogenated Solvents (Cresols, Nitrobenzene)

Spent solvents cresols/cresylic acid and nitrobenzene, and still bottoms from their recovery.

F005
40 CFR 261.31

Spent Non-Halogenated Solvents (Toluene, MEK, etc.)

Spent solvents toluene, methyl ethyl ketone, carbon disulfide, isobutanol, pyridine, benzene, 2-ethoxyethanol, and 2-nitropropane, and still bottoms from their recovery.

F006
40 CFR 261.31

Electroplating Wastewater Treatment Sludge

Wastewater treatment sludges from electroplating operations using cyanide baths or generating sludge containing cadmium, hexavalent chromium, nickel, or other toxic metals.

F007
40 CFR 261.31

Spent Cyanide Plating Bath Solutions (Electroplating)

Spent cyanide plating bath solutions from electroplating operations. Acutely hazardous (T) due to free cyanide concentration.

F008
40 CFR 261.31

Plating Bath Residues (Bottom of Plating Bath)

Plating bath residues from the bottom of cyanide-bearing plating baths from electroplating operations.

F009
40 CFR 261.31

Spent Stripping and Cleaning Bath Solutions (Electroplating)

Spent stripping and cleaning bath solutions from electroplating operations where cyanides are used in the process.

F010
40 CFR 261.31

Quenching Bath Residues from Oil Baths (Heat Treating)

Quenching bath residues from oil baths used in metal heat treating operations where cyanides are used in the process.

F011
40 CFR 261.31

Spent Cyanide Solutions — Salt Bath Pot Cleaning (Heat Treating)

Spent cyanide solutions from salt bath pot cleaning from metal heat treating operations.

F012
40 CFR 261.31

Quenching Wastewater Sludges (Heat Treating with Cyanide)

Quenching wastewater treatment sludges from metal heat treating operations where cyanides are used in the process.

F019
40 CFR 261.31

Aluminum Chemical Conversion Coating Sludge

Wastewater treatment sludges from the chemical conversion coating of aluminum (e.g., chromate conversion coating / Alodine).

F020
40 CFR 261.31

Tri-/Tetrachlorophenol Production Wastes

Wastes from the production or manufacturing use of tri- or tetrachlorophenol.

F021
40 CFR 261.31

Pentachlorophenol (PCP) Production Wastes

Wastes from the production or manufacturing use of pentachlorophenol.

F022
40 CFR 261.31

Tetra-/Penta-/Hexachlorobenzene Manufacturing Wastes

Wastes from the manufacturing use of tetra-, penta-, or hexachlorobenzenes under alkaline conditions.

F023
40 CFR 261.31

Wastes from Tetra-/Pentachlorophenol Production Equipment

Wastes from production on equipment previously used to manufacture tetra- and pentachlorophenols.

F024
40 CFR 261.31

Chlorinated Aliphatics Production Wastes (Free Radical Catalysis)

Wastes — including wastewater and scrubber waters — from the production of chlorinated aliphatics using free radical catalysis.

F025
40 CFR 261.31

Condensed Light Ends / Spent Filters (Chlorinated Aliphatics)

Condensed light ends, spent filters and filter aids, and spent desiccants from the production of chlorinated aliphatics via free radical catalysis.

F026
40 CFR 261.31

Wastes from Tetra-/Penta-/Hexachlorobenzene Equipment

Wastes, including wastewater and scrubber water, from equipment previously used for manufacturing of tetra-, penta-, or hexachlorobenzene under alkaline conditions.

F027
40 CFR 261.31

Discarded Tri-/Tetra-/Pentachlorophenol Formulations

Discarded, unused formulations containing tri-, tetra-, or pentachlorophenol.

F028
40 CFR 261.31

Incineration Residues — Dioxin-Contaminated Soil

Residues from incineration or thermal treatment of soil contaminated with F020, F021, F022, F023, F026, or F027 wastes.

F032
40 CFR 261.31

Wood Preserving Wastewaters (Sodium Chromate / Chromic Acid)

Wastewaters and process residuals from wood preserving using sodium chromate, sodium dichromate, or chromic acid.

F033
40 CFR 261.31

Wood Preserving Wastewaters (Chlorophenolic Formulations)

Wastewaters and process residuals from wood preserving using chlorophenolic formulations.

F034
40 CFR 261.31

Wood Preserving Wastewaters (Creosote)

Wastewaters and process residuals from wood preserving using creosote.

F035
40 CFR 261.31

Wood Preserving Wastewaters (Creosote/Chlorophenolic Mix)

Wastewaters and process residuals from wood preserving using mixtures of creosote and chlorophenolic formulations.

F037
40 CFR 261.31

Petroleum Refinery Primary Oil/Water/Solids Separation Sludge

Petroleum refinery primary oil/water/solids separation sludge from gravitational separation of process wastewaters.

F038
40 CFR 261.31

Petroleum Refinery Secondary Emulsified Oil/Water Sludge

Petroleum refinery secondary (emulsified) oil/water/solids separation sludge from DAF units, coalescer units, and biological treatment biosludge.

F039
40 CFR 261.31

Multi-Source Leachate (Multiple Listed Wastes)

Leachate resulting from the treatment, storage, or disposal of more than one listed hazardous waste.

K001
40 CFR 261.32

Wood Preserving — Bottom Sediment Sludge

Bottom sediment sludge from treatment of wastewaters from wood preserving processes using creosote or pentachlorophenol.

K002
40 CFR 261.32

Chrome Yellow/Orange Pigment — Wastewater Sludge

Wastewater treatment sludge from the production of chrome yellow and orange pigments.

K003
40 CFR 261.32

Molybdate Orange Pigment — Wastewater Sludge

Wastewater treatment sludge from the production of molybdate orange pigments.

K004
40 CFR 261.32

Zinc Yellow Pigment — Wastewater Sludge

Wastewater treatment sludge from the production of zinc yellow pigments.

K005
40 CFR 261.32

Chrome Green Pigment — Wastewater Sludge

Wastewater treatment sludge from the production of chrome green pigments.

K006
40 CFR 261.32

Chrome Oxide Green Pigment — Wastewater Sludge

Wastewater treatment sludge from the production of chrome oxide green pigments.

K007
40 CFR 261.32

Iron Blue Pigment — Wastewater Sludge

Wastewater treatment sludge from the production of iron blue pigments.

K008
40 CFR 261.32

Titanium Dioxide Production — Oven Residue

Oven residue from the production of chrome oxide green pigments.

K009
40 CFR 261.32

Acetaldehyde Production — Distillation Bottoms

Distillation bottoms from the production of acetaldehyde from ethylene.

K010
40 CFR 261.32

Acetaldehyde Production — Side Cuts

Distillation side cuts from the production of acetaldehyde from ethylene.

K011
40 CFR 261.32

Acrylonitrile Production — Wastewater Stripper Bottom Stream

Bottom stream from the wastewater stripper in acrylonitrile production.

K013
40 CFR 261.32

Acrylonitrile Production — Acetonitrile Column Bottom Stream

Bottom stream from the acetonitrile column in acrylonitrile production.

K014
40 CFR 261.32

Acrylonitrile Production — Bottoms from Acetonitrile Purification

Bottoms from the acetonitrile purification column in the production of acrylonitrile.

K015
40 CFR 261.32

Benzyl Chloride Production — Still Bottoms

Still bottoms from the distillation of benzyl chloride.

K016
40 CFR 261.32

Carbon Tetrachloride Production — Heavy Ends

Heavy ends or distillation residues from the production of carbon tetrachloride.

K017
40 CFR 261.32

Epichlorohydrin Production — Heavy Ends

Heavy ends (still bottoms) from the purification column in the production of epichlorohydrin.

K018
40 CFR 261.32

Ethylene Dichloride Production — Heavy Ends

Heavy ends from the fractionation column in ethyl chloride production.

K019
40 CFR 261.32

Ethylene Dichloride Production — Heavy Ends from Distillation

Heavy ends from the distillation of ethylene dichloride in ethylene dichloride production.

K020
40 CFR 261.32

Vinyl Chloride Production — Heavy Ends

Heavy ends from the distillation of vinyl chloride in vinyl chloride monomer production.

K021
40 CFR 261.32

Fluoromethanes Production — Catalyst Solid Residues

Aqueous spent antimony catalyst waste from fluoromethanes production.

K022
40 CFR 261.32

Phenol/Acetone (Cumene Process) — Distillation Bottom Tars

Distillation bottom tars from the production of phenol and acetone via cumene oxidation.

K023
40 CFR 261.32

Phthalic Anhydride Production — Distillation Light Ends

Distillation light ends from the production of phthalic anhydride from naphthalene.

K024
40 CFR 261.32

Phthalic Anhydride Production — Distillation Bottoms

Distillation bottoms from the production of phthalic anhydride from naphthalene.

K025
40 CFR 261.32

Nitrobenzene Production — Distillation Bottoms

Distillation bottoms from the production of nitrobenzene by nitration of benzene.

K026
40 CFR 261.32

Methyl Ethyl Pyridine Production — Stripping Still Tails

Stripping still tails from the production of methyl ethyl pyridines.

K027
40 CFR 261.32

Toluene Diisocyanate (TDI) — Centrifuge and Distillation Residues

Centrifuge and distillation residues from TDI production.

K028
40 CFR 261.32

1,1,1-Trichloroethane Production — Spent Catalyst

Spent catalyst from the hydrochlorinator reactor in the production of 1,1,1-trichloroethane.

K029
40 CFR 261.32

1,1,1-Trichloroethane Production — Waste from Product Stream

Waste from the product steam stripper in the production of 1,1,1-trichloroethane.

K030
40 CFR 261.32

Trichloroethylene/Perchloroethylene — Column Bottoms / Heavy Ends

Column bottoms or heavy ends from combined production of trichloroethylene and perchloroethylene.

K031
40 CFR 261.32

Pesticide Production — Salts from MSMA/Cacodylic Acid

By-product salts generated in the production of MSMA and cacodylic acid.

K032
40 CFR 261.32

Pesticide Production — Wastewater Sludge from Chlordane

Wastewater treatment sludge from the production of chlordane.

K033
40 CFR 261.32

Pesticide Production — Wastewater/Scrub from Toxaphene

Wastewater and scrub water from the chlorination of cyclopentadiene in the production of chlordane.

K034
40 CFR 261.32

Pesticide Production — Filter Solids from Hexachlorocyclopentadiene

Filter solids from the filtration of hexachlorocyclopentadiene in the production of chlordane.

K035
40 CFR 261.32

Pesticide Production — Wastewater Treatments Sludge from Creosote

Wastewater treatment sludges generated in the production of creosote.

K036
40 CFR 261.32

Pesticide Production — Still Bottoms from Toluene Reclamation

Still bottoms from toluene reclamation distillation in the production of disulfoton.

K037
40 CFR 261.32

Pesticide Production — Wastewater Treatment Sludge from Disulfoton

Wastewater treatment sludges from the production of disulfoton.

K038
40 CFR 261.32

Pesticide Production — Wastewater from Phorate

Wastewater from the washing and stripping of phorate production.

K039
40 CFR 261.32

Pesticide Production — Filter Cake from Phorate

Filter cake from the filtration of diethylphosphorodithioic acid in the production of phorate.

K040
40 CFR 261.32

Pesticide Production — Wastewater Treatment Sludge from Phorate

Wastewater treatment sludge from the production of phorate.

K041
40 CFR 261.32

Pesticide Production — Wastewater Treatment Sludge from Toxaphene

Wastewater treatment sludge from the production of toxaphene.

K042
40 CFR 261.32

Pesticide Production — Heavy Ends from Dichlorobenzene

Heavy ends or distillation residues from the distillation of tetrachlorobenzene in the production of 2,4,5-T.

K043
40 CFR 261.32

Pesticide Production — 2,6-Dichlorophenol Waste

2,6-Dichlorophenol waste from the production of 2,4-D.

K044
40 CFR 261.32

Explosives Production — Wastewater Treatment Sludge

Wastewater treatment sludges from the manufacturing and processing of explosives.

K045
40 CFR 261.32

Explosives Production — Spent Carbon

Spent carbon from the treatment of wastewater containing explosives.

K046
40 CFR 261.32

Explosives Production — Lead-based Sludge

Wastewater treatment sludges from the manufacturing, formulation and loading of lead-based initiating compounds.

K047
40 CFR 261.32

Explosives Production — Pink/Red Water

Pink/red water from TNT operations.

K048
40 CFR 261.32

Petroleum Refining — Dissolved Air Flotation (DAF) Float

Dissolved air flotation (DAF) float from petroleum refinery wastewater treatment.

K049
40 CFR 261.32

Petroleum Refining — Slop Oil Emulsion Solids

Slop oil emulsion solids from the petroleum refining industry.

K050
40 CFR 261.32

Petroleum Refining — Heat Exchanger Bundle Cleaning Sludge

Heat exchanger bundle cleaning sludge from the petroleum refining industry.

K051
40 CFR 261.32

Petroleum Refining — API Separator Sludge

API separator sludge from the petroleum refining industry.

K052
40 CFR 261.32

Petroleum Refining — Tank Bottoms (Leaded Gasoline)

Tank bottoms (leaded) from the petroleum refining industry specifically from leaded gasoline storage.

K060
40 CFR 261.32

Coking Operations — Ammonia Still Lime Sludge

Ammonia still lime sludge from coking operations.

K061
40 CFR 261.32

Electric Arc Furnace — Emission Control Dust/Sludge (Primary Steel)

Emission control dust/sludge from primary steel production in electric furnaces.

K062
40 CFR 261.32

Steel Finishing — Spent Pickle Liquor

Spent pickle liquor generated by steel finishing operations.

K069
40 CFR 261.32

Secondary Lead Processing — Emission Control Dust/Sludge

Emission control dust/sludge from secondary lead smelting.

K071
40 CFR 261.32

Chlorine Production — Brine Purification Muds

Brine purification muds from the mercury cell process in chlorine production.

K073
40 CFR 261.32

Chlorine Production — Chlorinated Hydrocarbon Waste

Chlorinated hydrocarbon waste from the purification step of the diaphragm cell process using graphite anodes in chlorine production.

K083
40 CFR 261.32

Aniline Production — Distillation Bottoms

Distillation bottoms from aniline production.

K084
40 CFR 261.32

Veterinary Pharmaceuticals — Wastewater Treatment Sludge

Wastewater treatment sludges generated during the production of veterinary pharmaceuticals from arsenic or organo-arsenic compounds.

K085
40 CFR 261.32

Chlorobenzenes Production — Distillation/Fractionation Bottoms

Distillation or fractionation column bottoms from the production of chlorobenzenes.

K086
40 CFR 261.32

Ink Formulation — Wash Waters and Sludges

Solvent washes and sludges, caustic washes and sludges, or water washes and sludges from cleaning tubs and equipment used in the formulation of ink from pigments, driers, soaps, and stabilizers containing Chromium and Lead.

K087
40 CFR 261.32

Coke Production — Decanter Tank Tar Sludge

Decanter tank tar sludge from coking operations.

K088
40 CFR 261.32

Aluminum Production — Spent Potliners

Spent potliners from primary aluminum reduction.

K093
40 CFR 261.32

Phthalic Anhydride Production — Distillation Light Ends

Distillation light ends from the production of phthalic anhydride from ortho-xylene.

K094
40 CFR 261.32

Phthalic Anhydride Production — Distillation Bottoms

Distillation bottoms from the production of phthalic anhydride from ortho-xylene.

K095
40 CFR 261.32

1,1,1-Trichloroethane Production — Distillation Bottoms

Distillation bottoms from the production of 1,1,1-trichloroethane.

K096
40 CFR 261.32

1,1,1-Trichloroethane Production — Heavy Ends

Heavy ends from the heavy ends column from the production of 1,1,1-trichloroethane.

K097
40 CFR 261.32

Chlordane Production — Vacuum Stripper Discharge

Vacuum stripper discharge from the chlordane chlorinator in the production of chlordane.

K098
40 CFR 261.32

Toxaphene Production — Untreated Process Wastewater

Untreated process wastewater from the production of toxaphene.

K099
40 CFR 261.32

2,4-D Production — Untreated Wastewater

Untreated wastewater from the production of 2,4-D.

K100
40 CFR 261.32

Waste Leaching Solution from Emission Control Dust

Waste leaching solution from acid leaching of emission control dust/sludge from secondary lead smelting.

K101
40 CFR 261.32

Distillation tar residues from veterinary pharmaceuticals

Distillation tar residues from the distillation of aniline-based compounds in the production of veterinary pharmaceuticals from arsenic or organo-arsenic compounds.

K102
40 CFR 261.32

Residue from activated carbon from veterinary pharmaceuticals

Residue from the use of activated carbon for decolorization in the production of veterinary pharmaceuticals from arsenic or organo-arsenic compounds.

K103
40 CFR 261.32

Aniline extraction residues

Process residues from aniline extraction from the production of aniline.

K104
40 CFR 261.32

Nitrobenzene/aniline production wastewater

Combined wastewater streams generated from nitrobenzene/aniline production.

K105
40 CFR 261.32

Chlorobenzene production separated aqueous stream

Separated aqueous stream from the reactor product washing step in the production of chlorobenzenes.

K106
40 CFR 261.32

Mercury cell process wastewater treatment sludge

Wastewater treatment sludge from the mercury cell process in chlorine production.

K107
40 CFR 261.32

UDMH production column bottoms

Column bottoms from product separation from the production of 1,1-dimethylhydrazine (UDMH) from carboxylic acid hydrazides.

K108
40 CFR 261.32

UDMH production condensed column overheads

Condensed column overheads from product separation and condensed reactor vent gases from the production of 1,1-dimethylhydrazine (UDMH) from carboxylic acid hydrazides.

K109
40 CFR 261.32

UDMH production spent filter cartridges

Spent filter cartridges from product purification from the production of 1,1-dimethylhydrazine (UDMH) from carboxylic acid hydrazides.

K110
40 CFR 261.32

UDMH production condensed column overheads from intermediate separation

Condensed column overheads from intermediate separation from the production of 1,1-dimethylhydrazine (UDMH) from carboxylic acid hydrazides.

K111
40 CFR 261.32

Dinitrotoluene production product washwaters

Product washwaters from the production of dinitrotoluene via nitration of toluene.

K112
40 CFR 261.32

Toluenediamine production reaction by-product water

Reaction by-product water from the drying column in the production of toluenediamine via hydrogenation of dinitrotoluene.

K113
40 CFR 261.32

Toluenediamine production condensed liquid light ends

Condensed liquid light ends from the purification of toluenediamine in the production of toluenediamine via hydrogenation of dinitrotoluene.

K114
40 CFR 261.32

Toluenediamine production vicinals

Vicinals from the purification of toluenediamine in the production of toluenediamine via hydrogenation of dinitrotoluene.

K115
40 CFR 261.32

Toluenediamine production heavy ends

Heavy ends from the purification of toluenediamine in the production of toluenediamine via hydrogenation of dinitrotoluene.

K116
40 CFR 261.32

Toluene diisocyanate production organic condensate

Organic condensate from the solvent recovery column in the production of toluene diisocyanate via phosgenation of toluenediamine.

K117
40 CFR 261.32

Ethylene dibromide production wastewater

Wastewater from the reactor vent gas scrubber in the production of ethylene dibromide via bromination of ethene.

K118
40 CFR 261.32

Ethylene dibromide production spent adsorbent solids

Spent adsorbent solids from purification of ethylene dibromide in the production of ethylene dibromide via bromination of ethene.

K123
40 CFR 261.32

Ethylenebisdithiocarbamic acid production process wastewater

Process wastewater (including supernates, filtrates, and washwaters) from the production of ethylenebisdithiocarbamic acid and its salt.

K124
40 CFR 261.32

Ethylenebisdithiocarbamic acid production reactor vent scrubber water

Reactor vent scrubber water from the production of ethylenebisdithiocarbamic acid and its salts.

K125
40 CFR 261.32

Ethylenebisdithiocarbamic acid production filtration solids

Filtration, evaporation, and centrifugation solids from the production of ethylenebisdithiocarbamic acid and its salts.

K126
40 CFR 261.32

Ethylenebisdithiocarbamic acid production baghouse dust

Baghouse dust and floor sweepings in milling and packaging operations from the production or formulation of ethylenebisdithiocarbamic acid and its salts.

K131
40 CFR 261.32

Methyl bromide production wastewater

Wastewater from the reactor and acid wash from the production of methyl bromide.

K132
40 CFR 261.32

Methyl bromide production spent absorbent

Spent absorbent and wastewater separator solids from the production of methyl bromide.

K136
40 CFR 261.32

Ethylene dibromide production still bottoms

Still bottoms from the purification of ethylene dibromide in the production of ethylene dibromide via bromination of ethene.

K141
40 CFR 261.32

Coal tar recovery process residues

Process residues from the recovery of coal tar, including, but not limited to, collecting sump residues from the production of coke from coal or the recovery of coke by-products produced from coal.

K142
40 CFR 261.32

Tar storage tank residues from coke production

Tar storage tank residues from the production of coke from coal or from the recovery of coke by-products produced from coal.

K143
40 CFR 261.32

Light oil recovery process residues

Process residues from the recovery of light oil, including, but not limited to, those generated in stills, decanters, and wash oil recovery units from the recovery of coke by-products produced from coal.

K144
40 CFR 261.32

Light oil refining wastewater sump residues

Wastewater sump residues from light oil refining, including, but not limited to, intercepting or contamination sump sludges from the recovery of coke by-products produced from coal.

K145
40 CFR 261.32

Naphthalene collection and recovery operations residues

Residues from naphthalene collection and recovery operations from the recovery of coke by-products produced from coal.

K147
40 CFR 261.32

Coal tar refining tar storage tank residues

Tar storage tank residues from coal tar refining.

K148
40 CFR 261.32

Coal tar distillation residues

Residues from coal tar distillation, including but not limited to, still bottoms.

K149
40 CFR 261.32

Chlorinated toluenes production distillation bottoms

Distillation bottoms from the production of alpha- (or methyl-) chlorinated toluenes, ring-chlorinated toluenes, benzoyl chlorides, and compounds with mixtures of these functional groups.

K150
40 CFR 261.32

Chlorinated toluenes production organic residuals

Organic residuals, excluding spent carbon adsorbent, from the spent chlorine gas and hydrochloric acid recovery processes associated with the production of alpha- (or methyl-) chlorinated toluenes, ring-chlorinated toluenes, benzoyl chlorides, and compounds with mixtures of these functional groups.

K151
40 CFR 261.32

Chlorinated toluenes production wastewater treatment sludges

Wastewater treatment sludges, excluding neutralization and biological sludges, generated during the treatment of wastewaters from the production of alpha- (or methyl-) chlorinated toluenes, ring-chlorinated toluenes, benzoyl chlorides, and compounds with mixtures of these functional groups.

K156
40 CFR 261.32

Carbamates production organic waste

Organic waste (including heavy ends, still bottoms, light ends, spent solvents, filtrates, and decantates) from the production of carbamates and carbamoyl oximes.

K157
40 CFR 261.32

Carbamates production wastewaters

Wastewaters (including scrubber waters, condenser waters, washwaters, and separation waters) from the production of carbamates and carbamoyl oximes.

K158
40 CFR 261.32

Carbamates production bag house dusts

Bag house dusts and filter/separation solids from the production of carbamates and carbamoyl oximes.

K159
40 CFR 261.32

Thiocarbamate wastes treatment organics

Organics from the treatment of thiocarbamate wastes.

K161
40 CFR 261.32

Dithiocarbamate acids production purification solids

Purification solids (including filtration, evaporation, and centrifugation solids), bag house dust and floor sweepings from the production of dithiocarbamate acids and their salts.

K169
40 CFR 261.32

Petroleum refining crude oil storage tank sediment

Crude oil storage tank sediment from petroleum refining operations.

K170
40 CFR 261.32

Petroleum refining clarified slurry oil tank sediment

Clarified slurry oil tank sediment and/or in-line filter/separation solids from petroleum refining operations.

K171
40 CFR 261.32

Petroleum refining spent Hydrotreating catalyst

Spent Hydrotreating catalyst from petroleum refining operations.

K172
40 CFR 261.32

Petroleum refining spent Hydrorefining catalyst

Spent Hydrorefining catalyst from petroleum refining operations.

K174
40 CFR 261.32

Ethylene dichloride/vinyl chloride monomer production wastewater treatment sludges

Wastewater treatment sludges from the production of ethylene dichloride or vinyl chloride monomer (including commingled sludges).

K175
40 CFR 261.32

Vinyl chloride monomer production wastewater treatment sludges

Wastewater treatment sludges from the production of vinyl chloride monomer using mercuric chloride catalyst in an acetylene-based process.

K176
40 CFR 261.32

Antimony oxide production baghouse filters

Baghouse filters from the production of antimony oxide, including filters from the production of precursors.

K177
40 CFR 261.32

Antimony oxide production slag

Slag from the production of antimony oxide that is speculatively accumulated or disposed, including slag from the production of precursors.

K178
40 CFR 261.32

Ferric chloride manufacturing residues

Residues from manufacturing and manufacturing-site storage of ferric chloride from acids formed during the production of titanium dioxide using the chloride-ilmenite process.

K181
40 CFR 261.32

Dyes/pigments production nonwastewaters

Nonwastewaters from the production of dyes and/or pigments containing mass loadings of specific constituents.

P001
40 CFR 261.33(e)

Warfarin

Warfarin, & salts, when present at concentrations greater than 0.3%

P002
40 CFR 261.33(e)

1-Acetyl-2-thiourea

Acetamide, N-(aminothioxomethyl)-

P003
40 CFR 261.33(e)

Acrolein

2-Propenal

P004
40 CFR 261.33(e)

Aldrin

1,4,5,8-Dimethanonaphthalene, 1,2,3,4,10,10-hexa-chloro-1,4,4a,5,8,8a,-hexahydro-, (1alpha,4alpha,4abeta,5alpha,8alpha,8abeta)-

P005
40 CFR 261.33(e)

Allyl alcohol

2-Propen-1-ol

P006
40 CFR 261.33(e)

Aluminum phosphide

Aluminum phosphide (R,T)

P007
40 CFR 261.33(e)

5-(Aminomethyl)-3-isoxazolol

3(2H)-Isoxazolone, 5-(aminomethyl)-

P008
40 CFR 261.33(e)

4-Aminopyridine

4-Pyridinamine

P009
40 CFR 261.33(e)

Ammonium picrate

Phenol, 2,4,6-trinitro-, ammonium salt (R)

P010
40 CFR 261.33(e)

Arsenic acid H3AsO4

Arsenic acid H3AsO4

P011
40 CFR 261.33(e)

Arsenic oxide As2O5

Arsenic oxide As2O5

P012
40 CFR 261.33(e)

Arsenic oxide As2O3

Arsenic oxide As2O3

P013
40 CFR 261.33(e)

Barium cyanide

Barium cyanide

P014
40 CFR 261.33(e)

Thiophenol

Benzenethiol

P015
40 CFR 261.33(e)

Beryllium dust

Beryllium powder

P016
40 CFR 261.33(e)

Dichloromethyl ether

Methane, oxybis[chloro-

P017
40 CFR 261.33(e)

Bromoacetone

2-Propanone, 1-bromo-

P018
40 CFR 261.33(e)

Brucine

Strychnidin-10-one, 2,3-dimethoxy-

P020
40 CFR 261.33(e)

Dinoseb

Phenol, 2-(1-methylpropyl)-4,6-dinitro-

P021
40 CFR 261.33(e)

Calcium cyanide

Calcium cyanide Ca(CN)2

P022
40 CFR 261.33(e)

Carbon disulfide

Carbon disulfide

P023
40 CFR 261.33(e)

Chloroacetaldehyde

Acetaldehyde, chloro-

P024
40 CFR 261.33(e)

p-Chloroaniline

Benzenamine, 4-chloro-

P026
40 CFR 261.33(e)

1-(o-Chlorophenyl)thiourea

Thiourea, (2-chlorophenyl)-

P027
40 CFR 261.33(e)

3-Chloropropionitrile

Propanenitrile, 3-chloro-

P028
40 CFR 261.33(e)

Benzyl chloride

Benzene, (chloromethyl)-

P029
40 CFR 261.33(e)

Copper cyanide

Copper cyanide Cu(CN)

P030
40 CFR 261.33(e)

Cyanides (soluble cyanide salts)

Cyanides (soluble cyanide salts), not otherwise specified

P031
40 CFR 261.33(e)

Cyanogen

Ethanedinitrile

P033
40 CFR 261.33(e)

Cyanogen chloride

Cyanogen chloride (CN)Cl

P034
40 CFR 261.33(e)

2-Cyclohexyl-4,6-dinitrophenol

Phenol, 2-cyclohexyl-4,6-dinitro-

P036
40 CFR 261.33(e)

Dichlorophenylarsine

Arsonous dichloride, phenyl-

P037
40 CFR 261.33(e)

Dieldrin

2,7:3,6-Dimethanonaphth[2,3-b]oxirene, 3,4,5,6,9,9-hexachloro-1a,2,2a,3,6,6a,7,7a-octahydro-

P038
40 CFR 261.33(e)

Diethylarsine

Arsine, diethyl-

P039
40 CFR 261.33(e)

Disulfoton

Phosphorodithioic acid, O,O-diethyl S-[2-(ethylthio)ethyl] ester

P040
40 CFR 261.33(e)

O,O-Diethyl O-pyrazinyl phosphorothioate

Phosphorothioic acid, O,O-diethyl O-pyrazinyl ester

P041
40 CFR 261.33(e)

Diethyl-p-nitrophenyl phosphate

Phosphoric acid, diethyl 4-nitrophenyl ester

P042
40 CFR 261.33(e)

Epinephrine

1,2-Benzenediol, 4-[1-hydroxy-2-(methylamino)ethyl]-, (R)-

P043
40 CFR 261.33(e)

Diisopropylfluorophosphate (DFP)

Phosphorofluoridic acid, bis(1-methylethyl) ester

P044
40 CFR 261.33(e)

Dimethoate

Phosphorodithioic acid, O,O-dimethyl S-[2-(methylamino)-2-oxoethyl] ester

P045
40 CFR 261.33(e)

Thiofanox

2-Butanone, 3,3-dimethyl-1-(methylthio)-, O-[(methylamino)carbonyl] oxime

P046
40 CFR 261.33(e)

alpha,alpha-Dimethylphenethylamine

Benzeneethanamine, alpha,alpha-dimethyl-

P047
40 CFR 261.33(e)

4,6-Dinitro-o-cresol, & salts

Phenol, 2-methyl-4,6-dinitro-, & salts

P048
40 CFR 261.33(e)

2,4-Dinitrophenol

Phenol, 2,4-dinitro-

P049
40 CFR 261.33(e)

Dithiobiuret

Thioimidodicarbonic diamide [(H2N)C(S)]2NH

P050
40 CFR 261.33(e)

Endosulfan

6,9-Methano-2,4,3-benzodioxathiepin, 6,7,8,9,10,10-hexachloro-1,5,5a,6,9,9a-hexahydro-, 3-oxide

P051
40 CFR 261.33(e)

Endrin

2,7:3,6-Dimethanonaphth[2,3-b]oxirene, 3,4,5,6,9,9-hexachloro-1a,2,2a,3,6,6a,7,7a-octahydro-, (1aalpha,2beta,2abeta,3alpha,6alpha,6abeta,7beta,7aalpha)-

P054
40 CFR 261.33(e)

Aziridine

Aziridine

P056
40 CFR 261.33(e)

Fluorine

Fluorine

P057
40 CFR 261.33(e)

Fluoroacetamide

Acetamide, 2-fluoro-

P058
40 CFR 261.33(e)

Fluoroacetic acid, sodium salt

Acetic acid, fluoro-, sodium salt

P059
40 CFR 261.33(e)

Heptachlor

4,7-Methano-1H-indene, 1,4,5,6,7,8,8-heptachloro-3a,4,7,7a-tetrahydro-

P060
40 CFR 261.33(e)

Isodrin

1,4,5,8-Dimethanonaphthalene, 1,2,3,4,10,10-hexachloro-1,4,4a,5,8,8a-hexahydro-, (1alpha,4alpha,4abeta,5beta,8beta,8abeta)-

P062
40 CFR 261.33(e)

Hexaethyl tetraphosphate

Tetraphosphoric acid, hexaethyl ester

P063
40 CFR 261.33(e)

Hydrocyanic acid

Hydrocyanic acid

P064
40 CFR 261.33(e)

Methyl isocyanate

Methane, isocyanato-

P065
40 CFR 261.33(e)

Mercury fulminate

Fulminic acid, mercury(2+) salt (R,T)

P066
40 CFR 261.33(e)

Methomyl

Ethanimidothioic acid, N-[[(methylamino)carbonyl]oxy]-, methyl ester

P067
40 CFR 261.33(e)

2-Methylaziridine

1,2-Propylenimine

P068
40 CFR 261.33(e)

Methyl hydrazine

Hydrazine, methyl-

P069
40 CFR 261.33(e)

Methyllactonitrile

Propanenitrile, 2-hydroxy-2-methyl-

P070
40 CFR 261.33(e)

Aldicarb

Propanal, 2-methyl-2-(methylthio)-, O-[(methylamino)carbonyl]oxime

P071
40 CFR 261.33(e)

Methyl parathion

Phosphorothioic acid, O,O-dimethyl O-(4-nitrophenyl) ester

P072
40 CFR 261.33(e)

alpha-Naphthylthiourea

Thiourea, 1-naphthalenyl-

P073
40 CFR 261.33(e)

Nickel carbonyl

Nickel carbonyl Ni(CO)4, (T-4)-

P074
40 CFR 261.33(e)

Nickel cyanide

Nickel cyanide Ni(CN)2

P075
40 CFR 261.33(e)

Nicotine, & salts

Pyridine, 3-(1-methyl-2-pyrrolidinyl)-, (S)-, & salts

P076
40 CFR 261.33(e)

Nitric oxide

Nitrogen oxide NO

P077
40 CFR 261.33(e)

p-Nitroaniline

Benzenamine, 4-nitro-

P078
40 CFR 261.33(e)

Nitrogen dioxide

Nitrogen oxide NO2

P081
40 CFR 261.33(e)

Nitroglycerin

1,2,3-Propanetriol, trinitrate (R)

P082
40 CFR 261.33(e)

N-Nitrosodimethylamine

Methanamine, N-methyl-N-nitroso-

P084
40 CFR 261.33(e)

N-Nitrosomethylvinylamine

Vinylamine, N-methyl-N-nitroso-

P085
40 CFR 261.33(e)

Octamethylpyrophosphoramide

Diphosphoramide, octamethyl-

P087
40 CFR 261.33(e)

Osmium tetroxide

Osmium oxide OsO4, (T-4)-

P088
40 CFR 261.33(e)

Endothall

7-Oxabicyclo[2.2.1]heptane-2,3-dicarboxylic acid

P089
40 CFR 261.33(e)

Parathion

Phosphorothioic acid, O,O-diethyl O-(4-nitrophenyl) ester

P092
40 CFR 261.33(e)

Phenylmercury acetate

Mercury, (acetato-O)phenyl-

P093
40 CFR 261.33(e)

Phenylthiourea

Thiourea, phenyl-

P094
40 CFR 261.33(e)

Phorate

Phosphorodithioic acid, O,O-diethyl S-[(ethylthio)methyl] ester

P095
40 CFR 261.33(e)

Phosgene

Carbonic dichloride

P096
40 CFR 261.33(e)

Phosphine

Phosphine

P097
40 CFR 261.33(e)

Famphur

Phosphorothioic acid, O-[4-[(dimethylamino)sulfonyl]phenyl] O,O-dimethyl ester

P098
40 CFR 261.33(e)

Potassium cyanide

Potassium cyanide K(CN)

P099
40 CFR 261.33(e)

Potassium silver cyanide

Argentate(1-), bis(cyano-C)-, potassium

P101
40 CFR 261.33(e)

Ethyl cyanide

Propanenitrile

P102
40 CFR 261.33(e)

Propargyl alcohol

2-Propyn-1-ol

P103
40 CFR 261.33(e)

Selenourea

Selenourea

P104
40 CFR 261.33(e)

Silver cyanide

Silver cyanide Ag(CN)

P105
40 CFR 261.33(e)

Sodium azide

Sodium azide

P106
40 CFR 261.33(e)

Sodium cyanide

Sodium cyanide Na(CN)

P108
40 CFR 261.33(e)

Strychnine, & salts

Strychnidin-10-one, & salts

P109
40 CFR 261.33(e)

Tetraethyldithiopyrophosphate

Thiodiphosphoric acid, tetraethyl ester

P110
40 CFR 261.33(e)

Tetraethyl lead

Plumbane, tetraethyl-

P111
40 CFR 261.33(e)

Tetraethyl pyrophosphate

Diphosphoric acid, tetraethyl ester

P112
40 CFR 261.33(e)

Tetranitromethane

Methane, tetranitro- (R)

P113
40 CFR 261.33(e)

Thallic oxide

Thallium oxide Tl2O3

P114
40 CFR 261.33(e)

Thallium(I) selenite

Selenious acid, dithallium(1+) salt

P115
40 CFR 261.33(e)

Thallium(I) sulfate

Sulfuric acid, dithallium(1+) salt

P116
40 CFR 261.33(e)

Thiosemicarbazide

Hydrazinecarbothioamide

P118
40 CFR 261.33(e)

Trichloromethanethiol

Methanethiol, trichloro-

P119
40 CFR 261.33(e)

Ammonium vanadate

Vanadic acid, ammonium salt

P120
40 CFR 261.33(e)

Vanadium pentoxide

Vanadium oxide V2O5

P121
40 CFR 261.33(e)

Zinc cyanide

Zinc cyanide Zn(CN)2

P122
40 CFR 261.33(e)

Zinc phosphide Zn3P2

Zinc phosphide Zn3P2, when present at concentrations greater than 10% (R,T)

P123
40 CFR 261.33(e)

Toxaphene

Camphene, octachloro-

P127
40 CFR 261.33(e)

Carbofuran

7-Benzofuranol, 2,3-dihydro-2,2-dimethyl-, methylcarbamate

P128
40 CFR 261.33(e)

Mexacarbate

Phenol, 4-(dimethylamino)-3,5-dimethyl-, methylcarbamate (ester)

P185
40 CFR 261.33(e)

Tirpate

1,3-Dithiolane-2-carboxaldehyde, 2,4-dimethyl-, O-[(methylamino)-carbonyl]oxime

P188
40 CFR 261.33(e)

Physostigmine salicylate

Benzoic acid, 2-hydroxy-, compd. with (3aS-cis)-1,2,3,3a,8,8a-hexahydro-1,3a,8-trimethylpyrrolo[2,3-b]indol-5-yl methylcarbamate ester (1:1)

P189
40 CFR 261.33(e)

Carbosulfan

Carbamic acid, [(dibutylamino)-thio]methyl-, 2,3-dihydro-2,2-dimethyl-7-benzofuranyl ester

P190
40 CFR 261.33(e)

Metolcarb

Carbamic acid, methyl-, 3-methylphenyl ester

P191
40 CFR 261.33(e)

Dimetilan

Carbamic acid, dimethyl-, 1-[(dimethylamino)carbonyl]-5-methyl-1H-pyrazol-3-yl ester

P192
40 CFR 261.33(e)

Isolan

Carbamic acid, dimethyl-, 3-methyl-1-(1-methylethyl)-1H-pyrazol-5-yl ester

P194
40 CFR 261.33(e)

Oxamyl

Ethanimidothioic acid, 2-(dimethylamino)-N-[[(methylamino)carbonyl]oxy]-2-oxo-, methyl ester

P196
40 CFR 261.33(e)

Manganese dimethyldithiocarbamate

Manganese, bis(dimethylcarbamodithioato-S,S')-

P197
40 CFR 261.33(e)

Formparanate

Methanimidamide, N,N-dimethyl-N'-[2-methyl-4-[[(methylamino)carbonyl]oxy]phenyl]-

P198
40 CFR 261.33(e)

Formetanate hydrochloride

Methanimidamide, N,N-dimethyl-N'-[3-[[(methylamino)-carbonyl]oxy]phenyl]-, monohydrochloride

P199
40 CFR 261.33(e)

Methiocarb

Phenol, (3,5-dimethyl-4-(methylthio)-, methylcarbamate

P201
40 CFR 261.33(e)

Promecarb

Phenol, 3-methyl-5-(1-methylethyl)-, methyl carbamate

P202
40 CFR 261.33(e)

m-Cumenyl methylcarbamate

Phenol, 3-(1-methylethyl)-, methyl carbamate

P203
40 CFR 261.33(e)

Aldicarb sulfone

Propanal, 2-methyl-2-(methylsulfonyl)-, O-[(methylamino)carbonyl] oxime

P204
40 CFR 261.33(e)

Physostigmine

Pyrrolo[2,3-b]indol-5-ol, 1,2,3,3a,8,8a-hexahydro-1,3a,8-trimethyl-, methylcarbamate (ester), (3aS-cis)-

P205
40 CFR 261.33(e)

Ziram

Zinc, bis(dimethylcarbamodithioato-S,S')-

U001
40 CFR 261.33(f)

Acetaldehyde

Acetaldehyde (I)

U002
40 CFR 261.33(f)

Acetone

2-Propanone (I)

U003
40 CFR 261.33(f)

Acetonitrile

Acetonitrile (I,T)

U004
40 CFR 261.33(f)

Acetophenone

Ethanone, 1-phenyl-

U005
40 CFR 261.33(f)

2-Acetylaminofluorene

Acetamide, N-9H-fluoren-2-yl-

U006
40 CFR 261.33(f)

Acetyl chloride

Acetyl chloride (C,R,T)

U007
40 CFR 261.33(f)

Acrylamide

2-Propenamide

U008
40 CFR 261.33(f)

Acrylic acid

2-Propenoic acid (I)

U009
40 CFR 261.33(f)

Acrylonitrile

2-Propenenitrile

U010
40 CFR 261.33(f)

Mitomycin C

Azirino[2',3':3,4]pyrrolo[1,2-a]indole-4,7-dione, 6-amino-8-[[(aminocarbonyl)oxy]methyl]-1,1a,2,8,8a,8b-hexahydro-8a-methoxy-5-methyl-, [1aS-(1aalpha, 8beta, 8aalpha, 8balpha)]-

U011
40 CFR 261.33(f)

Amitrole

1H-1,2,4-Triazol-3-amine

U012
40 CFR 261.33(f)

Aniline

Benzenamine (I,T)

U014
40 CFR 261.33(f)

Auramine

Benzenamine, 4,4'-carbonimidoylbis[N,N-dimethyl-

U015
40 CFR 261.33(f)

Azaserine

L-Serine, diazoacetate (ester)

U016
40 CFR 261.33(f)

Benz[c]acridine

Benz[c]acridine

U017
40 CFR 261.33(f)

Benzal chloride

Benzene, (dichloromethyl)-

U018
40 CFR 261.33(f)

Benz[a]anthracene

Benz[a]anthracene

U019
40 CFR 261.33(f)

Benzene

Benzene (I,T)

U020
40 CFR 261.33(f)

Benzenesulfonyl chloride

Benzenesulfonyl chloride (C,R)

U021
40 CFR 261.33(f)

Benzidine

[1,1'-Biphenyl]-4,4'-diamine

U022
40 CFR 261.33(f)

Benzo[a]pyrene

Benzo[a]pyrene

U023
40 CFR 261.33(f)

Benzotrichloride

Benzene, (trichloromethyl)- (C,R,T)

U024
40 CFR 261.33(f)

bis(2-Chloroethoxy) methane

Ethane, 1,1'-[methylenebis(oxy)]bis[2-chloro-

U025
40 CFR 261.33(f)

bis(2-Chloroethyl) ether

Ethane, 1,1'-oxybis[2-chloro-

U026
40 CFR 261.33(f)

Chlornaphazin

Naphthalenamine, N,N'-bis(2-chloroethyl)-

U027
40 CFR 261.33(f)

bis(2-Chloroisopropyl) ether

Propane, 2,2'-oxybis[2-chloro-

U028
40 CFR 261.33(f)

bis(2-Ethylhexyl) phthalate

1,2-Benzenedicarboxylic acid, bis(2-ethylhexyl) ester

U029
40 CFR 261.33(f)

Methyl bromide

Methane, bromo-

U030
40 CFR 261.33(f)

4-Bromophenyl phenyl ether

Benzene, 1-bromo-4-phenoxy-

U031
40 CFR 261.33(f)

n-Butyl alcohol

1-Butanol (I)

U032
40 CFR 261.33(f)

Calcium chromate

Chromic acid H2CrO4, calcium salt

U033
40 CFR 261.33(f)

Carbon oxyfluoride

Carbonic difluoride (R,T)

U034
40 CFR 261.33(f)

Trichloroacetaldehyde

Acetaldehyde, trichloro-

U035
40 CFR 261.33(f)

Chlorambucil

Benzenebutanoic acid, 4-[bis(2-chloroethyl)amino]-

U036
40 CFR 261.33(f)

Chlordane, alpha & gamma isomers

4,7-Methano-1H-indene, 1,2,4,5,6,7,8,8-octachloro-2,3,3a,4,7,7a-hexahydro-

U037
40 CFR 261.33(f)

Chlorobenzene

Benzene, chloro-

U038
40 CFR 261.33(f)

Chlorobenzilate

Benzeneacetic acid, 4-chloro-alpha-(4-chlorophenyl)-alpha-hydroxy-, ethyl ester

U039
40 CFR 261.33(f)

p-Chloro-m-cresol

Phenol, 4-chloro-3-methyl-

U041
40 CFR 261.33(f)

Epichlorohydrin

Oxirane, (chloromethyl)-

U042
40 CFR 261.33(f)

2-Chloroethyl vinyl ether

Ethene, (2-chloroethoxy)-

U043
40 CFR 261.33(f)

Vinyl chloride

Ethene, chloro-

U044
40 CFR 261.33(f)

Chloroform

Methane, trichloro-

U045
40 CFR 261.33(f)

Methyl chloride

Methane, chloro- (I,T)

U046
40 CFR 261.33(f)

Chloromethyl methyl ether

Methane, chloromethoxy-

U047
40 CFR 261.33(f)

beta-Chloronaphthalene

Naphthalene, 2-chloro-

U048
40 CFR 261.33(f)

o-Chlorophenol

Phenol, 2-chloro-

U049
40 CFR 261.33(f)

4-Chloro-o-toluidine, hydrochloride

Benzenamine, 4-chloro-2-methyl-, hydrochloride

U050
40 CFR 261.33(f)

Chrysene

Chrysene

U051
40 CFR 261.33(f)

Creosote

Creosote

U052
40 CFR 261.33(f)

Cresol (Cresylic acid)

Phenol, methyl-

U053
40 CFR 261.33(f)

Crotonaldehyde

2-Butenal

U055
40 CFR 261.33(f)

Cumene

Benzene, (1-methylethyl)- (I)

U056
40 CFR 261.33(f)

Cyclohexane

Cyclohexane (I)

U057
40 CFR 261.33(f)

Cyclohexanone

Cyclohexanone (I)

U058
40 CFR 261.33(f)

Cyclophosphamide

2H-1,3,2-Oxazaphosphorin-2-amine, N,N-bis(2-chloroethyl)tetrahydro-, 2-oxide

U059
40 CFR 261.33(f)

Daunomycin

5,12-Naphthacenedione, 8-acetyl-10-[(3-amino-2,3,6-trideoxy)-alpha-L-lyxo-hexopyranosyl)oxy]-7,8,9,10-tetrahydro-6,8,11-trihydroxy-1-methoxy-, (8S-cis)-

U060
40 CFR 261.33(f)

DDD

Benzene, 1,1'-(2,2-dichloroethylidene)bis[4-chloro-

U061
40 CFR 261.33(f)

DDT

Benzene, 1,1'-(2,2,2-trichloroethylidene)bis[4-chloro-

U062
40 CFR 261.33(f)

Diallate

Carbamothioic acid, bis(1-methylethyl)-, S-(2,3-dichloro-2-propenyl) ester

U063
40 CFR 261.33(f)

Dibenz[a,h]anthracene

Dibenz[a,h]anthracene

U064
40 CFR 261.33(f)

1,2:7,8-Dibenzopyrene

Benzo[rst]pentaphene

U066
40 CFR 261.33(f)

1,2-Dibromo-3-chloropropane

Propane, 1,2-dibromo-3-chloro-

U067
40 CFR 261.33(f)

Ethylene dibromide

Ethane, 1,2-dibromo-

U068
40 CFR 261.33(f)

Methane, dibromo-

Methane, dibromo-

U069
40 CFR 261.33(f)

Di-n-butyl phthalate

1,2-Benzenedicarboxylic acid, dibutyl ester

U070
40 CFR 261.33(f)

o-Dichlorobenzene

Benzene, 1,2-dichloro-

U071
40 CFR 261.33(f)

m-Dichlorobenzene

Benzene, 1,3-dichloro-

U072
40 CFR 261.33(f)

p-Dichlorobenzene

Benzene, 1,4-dichloro-

U073
40 CFR 261.33(f)

3,3'-Dichlorobenzidine

[1,1'-Biphenyl]-4,4'-diamine, 3,3'-dichloro-

U074
40 CFR 261.33(f)

1,4-Dichloro-2-butene

2-Butene, 1,4-dichloro- (I,T)

U075
40 CFR 261.33(f)

Dichlorodifluoromethane

Methane, dichlorodifluoro-

U076
40 CFR 261.33(f)

1,1-Dichloroethane

Ethane, 1,1-dichloro-

U077
40 CFR 261.33(f)

1,2-Dichloroethane

Ethane, 1,2-dichloro-

U078
40 CFR 261.33(f)

1,1-Dichloroethylene

Ethene, 1,1-dichloro-

U079
40 CFR 261.33(f)

1,2-Dichloroethylene

Ethene, 1,2-dichloro-, (E)-

U080
40 CFR 261.33(f)

Methylene chloride

Methane, dichloro-

U081
40 CFR 261.33(f)

2,4-Dichlorophenol

Phenol, 2,4-dichloro-

U082
40 CFR 261.33(f)

2,6-Dichlorophenol

Phenol, 2,6-dichloro-

U083
40 CFR 261.33(f)

1,2-Dichloropropane

Propane, 1,2-dichloro-

U084
40 CFR 261.33(f)

1,3-Dichloropropene

1-Propene, 1,3-dichloro-

U085
40 CFR 261.33(f)

1,2:3,4-Diepoxybutane

2,2'-Bioxirane

U086
40 CFR 261.33(f)

N,N'-Diethylhydrazine

Hydrazine, 1,2-diethyl-

U087
40 CFR 261.33(f)

O,O-Diethyl S-methyl dithiophosphate

Phosphorodithioic acid, O,O-diethyl S-methyl ester

U088
40 CFR 261.33(f)

Diethyl phthalate

1,2-Benzenedicarboxylic acid, diethyl ester

U089
40 CFR 261.33(f)

Diethylstilbesterol

Phenol, 4,4'-(1,2-diethyl-1,2-ethenediyl)bis-, (E)-

U090
40 CFR 261.33(f)

Dihydrosafrole

1,3-Benzodioxole, 5-propyl-

U091
40 CFR 261.33(f)

3,3'-Dimethoxybenzidine

[1,1'-Biphenyl]-4,4'-diamine, 3,3'-dimethoxy-

U092
40 CFR 261.33(f)

Dimethylamine

Methanamine, N-methyl- (I)

U093
40 CFR 261.33(f)

p-Dimethylaminoazobenzene

Benzenamine, N,N-dimethyl-4-(phenylazo)-

U094
40 CFR 261.33(f)

7,12-Dimethylbenz[a]anthracene

Benz[a]anthracene, 7,12-dimethyl-

U095
40 CFR 261.33(f)

3,3'-Dimethylbenzidine

[1,1'-Biphenyl]-4,4'-diamine, 3,3'-dimethyl-

U096
40 CFR 261.33(f)

alpha,alpha-Dimethylbenzylhydroperoxide

Hydroperoxide, 1-methyl-1-phenylethyl- (R)

U097
40 CFR 261.33(f)

Dimethylcarbamoyl chloride

Carbamic chloride, dimethyl-

U098
40 CFR 261.33(f)

1,1-Dimethylhydrazine

Hydrazine, 1,1-dimethyl-

U099
40 CFR 261.33(f)

1,2-Dimethylhydrazine

Hydrazine, 1,2-dimethyl-

U101
40 CFR 261.33(f)

2,4-Dimethylphenol

Phenol, 2,4-dimethyl-

U102
40 CFR 261.33(f)

Dimethyl phthalate

1,2-Benzenedicarboxylic acid, dimethyl ester

U103
40 CFR 261.33(f)

Dimethyl sulfate

Sulfuric acid, dimethyl ester

U105
40 CFR 261.33(f)

2,4-Dinitrotoluene

Benzene, 1-methyl-2,4-dinitro-

U106
40 CFR 261.33(f)

2,6-Dinitrotoluene

Benzene, 2-methyl-1,3-dinitro-

U107
40 CFR 261.33(f)

Di-n-octyl phthalate

1,2-Benzenedicarboxylic acid, dioctyl ester

U108
40 CFR 261.33(f)

1,4-Dioxane

1,4-Dioxane

U109
40 CFR 261.33(f)

1,2-Diphenylhydrazine

Hydrazine, 1,2-diphenyl-

U110
40 CFR 261.33(f)

Dipropylamine

1-Propanamine, N-propyl- (I)

U111
40 CFR 261.33(f)

Di-n-propylnitrosamine

1-Propanamine, N-nitroso-N-propyl-

U112
40 CFR 261.33(f)

Ethyl acetate

Acetic acid ethyl ester (I)

U113
40 CFR 261.33(f)

Ethyl acrylate

2-Propenoic acid, ethyl ester (I)

U114
40 CFR 261.33(f)

Ethylenebisdithiocarbamic acid, salts & esters

Carbamodithioic acid, 1,2-ethanediylbis-, salts & esters

U115
40 CFR 261.33(f)

Ethylene oxide

Oxirane (I,T)

U116
40 CFR 261.33(f)

Ethylene thiourea

2-Imidazolidinethione

U117
40 CFR 261.33(f)

Ethyl ether

Ethane, 1,1'-oxybis- (I)

U118
40 CFR 261.33(f)

Ethyl methacrylate

2-Propenoic acid, 2-methyl-, ethyl ester

U119
40 CFR 261.33(f)

Ethyl methanesulfonate

Methanesulfonic acid, ethyl ester

U120
40 CFR 261.33(f)

Fluoranthene

Fluoranthene

U121
40 CFR 261.33(f)

Trichloromonofluoromethane

Methane, trichlorofluoro-

U122
40 CFR 261.33(f)

Formaldehyde

Formaldehyde

U123
40 CFR 261.33(f)

Formic acid

Formic acid (C,T)

U124
40 CFR 261.33(f)

Furan

Furan (I)

U125
40 CFR 261.33(f)

Furfural

2-Furancarboxaldehyde (I)

U126
40 CFR 261.33(f)

Glycidylaldehyde

Oxiranecarboxyaldehyde

U127
40 CFR 261.33(f)

Hexachlorobenzene

Benzene, hexachloro-

U128
40 CFR 261.33(f)

Hexachlorobutadiene

1,3-Butadiene, 1,1,2,3,4,4-hexachloro-

U129
40 CFR 261.33(f)

Lindane

Cyclohexane, 1,2,3,4,5,6-hexachloro-, (1alpha,2alpha,3beta,4alpha,5alpha,6beta)-

U130
40 CFR 261.33(f)

Hexachlorocyclopentadiene

1,3-Cyclopentadiene, 1,2,3,4,5,5-hexachloro-

U131
40 CFR 261.33(f)

Hexachloroethane

Ethane, hexachloro-

U132
40 CFR 261.33(f)

Hexachlorophene

Phenol, 2,2'-methylenebis[3,4,6-trichloro-

U133
40 CFR 261.33(f)

Hydrazine

Hydrazine (R,T)

U134
40 CFR 261.33(f)

Hydrofluoric acid

Hydrofluoric acid (C,T)

U135
40 CFR 261.33(f)

Hydrogen sulfide

Hydrogen sulfide H2S

U136
40 CFR 261.33(f)

Cacodylic acid

Arsinic acid, dimethyl-

U137
40 CFR 261.33(f)

Indeno[1,2,3-cd]pyrene

Indeno[1,2,3-cd]pyrene

U138
40 CFR 261.33(f)

Methyl iodide

Methane, iodo-

U140
40 CFR 261.33(f)

Isobutyl alcohol

1-Propanol, 2-methyl- (I,T)

U141
40 CFR 261.33(f)

Isosafrole

1,3-Benzodioxole, 5-(1-propenyl)-

U142
40 CFR 261.33(f)

Kepone

1,3,4-Metheno-2H-cyclobuta[cd]pentalen-2-one, 1,1a,3,3a,4,5,5,5a,5b,6-decachlorooctahydro-

U143
40 CFR 261.33(f)

Lasiocarpine

2-Butenoic acid, 2-methyl-, 7-[[2,3-dihydroxy-2-(1-methoxyethyl)-3-methyl-1-oxobutoxy]methyl]-2,3,5,7a-tetrahydro-1H-pyrrolizin-1-yl ester, [1S-[1alpha(Z),7(2S*,3R*),7aalpha]]-

U144
40 CFR 261.33(f)

Lead acetate

Acetic acid, lead(2+) salt

U145
40 CFR 261.33(f)

Lead phosphate

Phosphoric acid, lead(2+) salt (2:3)

U146
40 CFR 261.33(f)

Lead subacetate

Lead, bis(acetato-O)tetrahydroxytri-

U147
40 CFR 261.33(f)

Maleic anhydride

2,5-Furandione

U148
40 CFR 261.33(f)

Maleic hydrazide

3,6-Pyridazinedione, 1,2-dihydro-

U149
40 CFR 261.33(f)

Malononitrile

Propanedinitrile

U150
40 CFR 261.33(f)

Melphalan

L-Phenylalanine, 4-[bis(2-chloroethyl)amino]-

U151
40 CFR 261.33(f)

Mercury

Mercury

U152
40 CFR 261.33(f)

Methacrylonitrile

2-Propenenitrile, 2-methyl- (I, T)

U153
40 CFR 261.33(f)

Methanethiol

Methanethiol (I, T)

U154
40 CFR 261.33(f)

Methanol

Methanol (I)

U155
40 CFR 261.33(f)

Methapyrilene

1,2-Ethanediamine, N,N-dimethyl-N'-2-pyridinyl-N'-(2-thienylmethyl)-

U156
40 CFR 261.33(f)

Methyl chlorocarbonate

Carbonochloridic acid, methyl ester (I,T)

U157
40 CFR 261.33(f)

3-Methylcholanthrene

Benz[j]aceanthrylene, 1,2-dihydro-3-methyl-

U158
40 CFR 261.33(f)

4,4'-Methylenebis(2-chloroaniline)

Benzenamine, 4,4'-methylenebis[2-chloro-

U159
40 CFR 261.33(f)

Methyl ethyl ketone (MEK)

2-Butanone (I,T)

U160
40 CFR 261.33(f)

Methyl ethyl ketone peroxide

2-Butanone, peroxide (R,T)

U161
40 CFR 261.33(f)

Methyl isobutyl ketone

2-Pentanone, 4-methyl- (I)

U162
40 CFR 261.33(f)

Methyl methacrylate

2-Propenoic acid, 2-methyl-, methyl ester (I,T)

U163
40 CFR 261.33(f)

N-Methyl-N'-nitro-N-nitrosoguanidine

Guanidine, N-methyl-N'-nitro-N-nitroso-

U164
40 CFR 261.33(f)

Methylthiouracil

4(1H)-Pyrimidinone, 2,3-dihydro-6-methyl-2-thioxo-

U165
40 CFR 261.33(f)

Naphthalene

Naphthalene

U166
40 CFR 261.33(f)

1,4-Naphthoquinone

1,4-Naphthalenedione

U167
40 CFR 261.33(f)

alpha-Naphthylamine

1-Naphthalenamine

U168
40 CFR 261.33(f)

beta-Naphthylamine

2-Naphthalenamine

U169
40 CFR 261.33(f)

Nitrobenzene

Benzene, nitro- (I,T)

U170
40 CFR 261.33(f)

p-Nitrophenol

Phenol, 4-nitro-

U171
40 CFR 261.33(f)

2-Nitropropane

Propane, 2-nitro- (I,T)

U172
40 CFR 261.33(f)

N-Nitrosodi-n-butylamine

1-Butanamine, N-butyl-N-nitroso-

U173
40 CFR 261.33(f)

N-Nitrosodiethanolamine

Ethanol, 2,2'-(nitrosoimino)bis-

U174
40 CFR 261.33(f)

N-Nitrosodiethylamine

Ethanamine, N-ethyl-N-nitroso-

U176
40 CFR 261.33(f)

N-Nitroso-N-ethylurea

Urea, N-ethyl-N-nitroso-

U177
40 CFR 261.33(f)

N-Nitroso-N-methylurea

Urea, N-methyl-N-nitroso-

U178
40 CFR 261.33(f)

N-Nitroso-N-methylurethane

Carbamic acid, methylnitroso-, ethyl ester

U179
40 CFR 261.33(f)

N-Nitrosopiperidine

Piperidine, 1-nitroso-

U180
40 CFR 261.33(f)

N-Nitrosopyrrolidine

Pyrrolidine, 1-nitroso-

U181
40 CFR 261.33(f)

5-Nitro-o-toluidine

Benzenamine, 2-methyl-5-nitro-

U182
40 CFR 261.33(f)

Paraldehyde

1,3,5-Trioxane, 2,4,6-trimethyl-

U183
40 CFR 261.33(f)

Pentachlorobenzene

Benzene, pentachloro-

U184
40 CFR 261.33(f)

Pentachloroethane

Ethane, pentachloro-

U185
40 CFR 261.33(f)

Pentachloronitrobenzene (PCNB)

Benzene, pentachloronitro-

U186
40 CFR 261.33(f)

1,3-Pentadiene

1,3-Pentadiene (I)

U187
40 CFR 261.33(f)

Phenacetin

Acetamide, N-(4-ethoxyphenyl)-

U188
40 CFR 261.33(f)

Phenol

Phenol

U189
40 CFR 261.33(f)

Phosphorus sulfide

Phosphorus sulfide (R)

U190
40 CFR 261.33(f)

Phthalic anhydride

1,3-Isobenzofurandione

U191
40 CFR 261.33(f)

2-Picoline

Pyridine, 2-methyl-

U192
40 CFR 261.33(f)

Pronamide

Benzamide, 3,5-dichloro-N-(1,1-dimethyl-2-propynyl)-

U193
40 CFR 261.33(f)

1,3-Propane sultone

1,2-Oxathiolane, 2,2-dioxide

U194
40 CFR 261.33(f)

n-Propylamine

1-Propanamine (I,T)

U196
40 CFR 261.33(f)

Pyridine

Pyridine

U197
40 CFR 261.33(f)

p-Benzoquinone

2,5-Cyclohexadiene-1,4-dione

U200
40 CFR 261.33(f)

Reserpine

Yohimban-16-carboxylic acid, 11,17-dimethoxy-18-[(3,4,5-trimethoxybenzoyl)oxy]-, methyl ester, (3beta,16beta,17alpha,18beta,20alpha)-

U201
40 CFR 261.33(f)

Resorcinol

1,3-Benzenediol

U202
40 CFR 261.33(f)

Saccharin, & salts

1,2-Benzisothiazol-3(2H)-one, 1,1-dioxide, & salts

U203
40 CFR 261.33(f)

Safrole

1,3-Benzodioxole, 5-(2-propenyl)-

U204
40 CFR 261.33(f)

Selenious acid

Selenious acid

U205
40 CFR 261.33(f)

Selenium sulfide

Selenium sulfide

U206
40 CFR 261.33(f)

Streptozotocin

D-Glucopyranose, 2-deoxy-2-[[(methylnitrosoamino)-carbonyl]amino]-

U207
40 CFR 261.33(f)

1,2,4,5-Tetrachlorobenzene

Benzene, 1,2,4,5-tetrachloro-

U208
40 CFR 261.33(f)

1,1,1,2-Tetrachloroethane

Ethane, 1,1,1,2-tetrachloro-

U209
40 CFR 261.33(f)

1,1,2,2-Tetrachloroethane

Ethane, 1,1,2,2-tetrachloro-

U210
40 CFR 261.33(f)

Tetrachloroethylene

Ethene, tetrachloro-

U211
40 CFR 261.33(f)

Carbon tetrachloride

Methane, tetrachloro-

U213
40 CFR 261.33(f)

Tetrahydrofuran

Furan, tetrahydro- (I)

U214
40 CFR 261.33(f)

Thallium(I) acetate

Acetic acid, thallium(1+) salt

U215
40 CFR 261.33(f)

Thallium(I) carbonate

Carbonic acid, dithallium(1+) salt

U216
40 CFR 261.33(f)

Thallium(I) chloride

Thallium chloride TlCl

U217
40 CFR 261.33(f)

Thallium(I) nitrate

Nitric acid, thallium(1+) salt

U218
40 CFR 261.33(f)

Thioacetamide

Ethanethioamide

U219
40 CFR 261.33(f)

Thiourea

Thiourea

U220
40 CFR 261.33(f)

Toluene

Benzene, methyl-

U221
40 CFR 261.33(f)

Toluenediamine

Benzenediamine, ar-methyl-

U222
40 CFR 261.33(f)

o-Toluidine hydrochloride

Benzenamine, 2-methyl-, hydrochloride

U223
40 CFR 261.33(f)

Toluene diisocyanate

Benzene, 1,3-diisocyanatomethyl- (R,T)

U225
40 CFR 261.33(f)

Bromoform

Methane, tribromo-

U226
40 CFR 261.33(f)

1,1,1-Trichloroethane

Ethane, 1,1,1-trichloro-

U227
40 CFR 261.33(f)

1,1,2-Trichloroethane

Ethane, 1,1,2-trichloro-

U228
40 CFR 261.33(f)

Trichloroethylene

Ethene, trichloro-

U234
40 CFR 261.33(f)

1,3,5-Trinitrobenzene

Benzene, 1,3,5-trinitro- (R,T)

U235
40 CFR 261.33(f)

tris(2,3-Dibromopropyl) phosphate

1-Propanol, 2,3-dibromo-, phosphate (3:1)

U236
40 CFR 261.33(f)

Trypan blue

2,7-Naphthalenedisulfonic acid, 3,3'-[(3,3'-dimethyl[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-amino-4-hydroxy-, tetrasodium salt

U237
40 CFR 261.33(f)

Uracil mustard

2,4-(1H,3H)-Pyrimidinedione, 5-[bis(2-chloroethyl)amino]-

U238
40 CFR 261.33(f)

Urethane

Carbamic acid, ethyl ester

U239
40 CFR 261.33(f)

Xylene

Benzene, dimethyl- (I,T)

U240
40 CFR 261.33(f)

2,4-D, salts & esters

Acetic acid, (2,4-dichlorophenoxy)-, salts & esters

U243
40 CFR 261.33(f)

Hexachloropropene

1-Propene, 1,1,2,3,3,3-hexachloro-

U244
40 CFR 261.33(f)

Thiram

Thioperoxydicarbonic diamide [(H2N)C(S)]2S2, tetramethyl-

U246
40 CFR 261.33(f)

Cyanogen bromide

Cyanogen bromide (CN)Br

U247
40 CFR 261.33(f)

Methoxychlor

Benzene, 1,1'-(2,2,2-trichloroethylidene)bis[4-methoxy-

U248
40 CFR 261.33(f)

Warfarin, & salts

2H-1-Benzopyran-2-one, 4-hydroxy-3-(3-oxo-1-phenylbutyl)-, & salts, when present at concentrations of 0.3% or less

U249
40 CFR 261.33(f)

Zinc phosphide

Zinc phosphide Zn3P2, when present at concentrations of 10% or less

U271
40 CFR 261.33(f)

Benomyl

Carbamic acid, [1-[(butylamino)carbonyl]-1H-benzimidazol-2-yl]-, methyl ester

U277
40 CFR 261.33(f)

Sulfallate

Carbamodithioic acid, diethyl-, 2-chloro-2-propenyl ester

U278
40 CFR 261.33(f)

Bendiocarb

1,3-Benzodioxol-4-ol, 2,2-dimethyl-, methyl carbamate

U279
40 CFR 261.33(f)

Carbaryl

1-Naphthalenol, methylcarbamate

U280
40 CFR 261.33(f)

Barban

Carbamic acid, (3-chlorophenyl)-, 4-chloro-2-butynyl ester

U328
40 CFR 261.33(f)

o-Toluidine

Benzenamine, 2-methyl-

U353
40 CFR 261.33(f)

p-Toluidine

Benzenamine, 4-methyl-

U359
40 CFR 261.33(f)

2-Ethoxyethanol

Ethanol, 2-ethoxy-

U364
40 CFR 261.33(f)

Bendiocarb phenol

1,3-Benzodioxol-4-ol, 2,2-dimethyl-

U367
40 CFR 261.33(f)

Carbofuran phenol

7-Benzofuranol, 2,3-dihydro-2,2-dimethyl-

U372
40 CFR 261.33(f)

Carbendazim

Carbamic acid, 1H-benzimidazol-2-yl, methyl ester

U373
40 CFR 261.33(f)

Propham

Carbamic acid, phenyl-, 1-methylethyl ester

U387
40 CFR 261.33(f)

Prosulfocarb

Carbamothioic acid, dipropyl-, S-(phenylmethyl) ester

U389
40 CFR 261.33(f)

Triallate

Carbamothioic acid, bis(1-methylethyl)-, S-(2,3,3-trichloro-2-propenyl) ester

U394
40 CFR 261.33(f)

A2213

Ethanimidothioic acid, 2-(dimethylamino)-N-hydroxy-2-oxo-, methyl ester

U395
40 CFR 261.33(f)

Diethylene glycol, dicarbamate

Ethanol, 2,2'-oxybis-, dicarbamate

U404
40 CFR 261.33(f)

Triethylamine

Ethanamine, N,N-diethyl-

U408
40 CFR 261.33(f)

2,4,6-Tribromophenol

Phenol, 2,4,6-tribromo-

U409
40 CFR 261.33(f)

Thiophanate-methyl

Carbamic acid, [1,2-phenylenebis (iminocarbonothioyl)]bis-, dimethyl ester

U410
40 CFR 261.33(f)

Thiodicarb

Ethanimidothioic acid, N,N'-[thiobis[(methylimino)carbonyloxy]]bis-, dimethyl ester

U411
40 CFR 261.33(f)

Propoxur

Phenol, 2-(1-methylethoxy)-, methylcarbamate

Codes reflect EPA 40 CFR Part 261 as amended. TCLP thresholds per 40 CFR 261.24, Table 1. Always verify against current federal and applicable state regulations — many states have adopted more stringent codes.


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D-Listed

43 codes

Characteristic

F-Listed

29 codes

Non-Specific Source

K-Listed

121 codes

Source-Specific

P-Listed

124 codes

Acutely Hazardous

U-Listed

249 codes

Toxic

Understanding the 5 RCRA waste code categories

Not all hazardous waste codes work the same way. The category determines how a waste is identified and what listing rules apply.

D — Characteristic Wastes

Any waste that exhibits ignitability (D001), corrosivity (D002), reactivity (D003), or toxicity (D004–D043) is hazardous regardless of source. Toxicity is measured via the TCLP test. These codes apply to virtually any generator.

F & K — Listed Wastes

F-codes cover non-specific-source wastes (e.g., spent solvents, electroplating sludge) generated across many industries. K-codes are tied to specific industrial processes like petroleum refining, steel pickling, and wood preserving.

P & U — Discarded Commercial Chemicals

P-codes are acutely hazardous commercial chemical products (generating >1 kg/month triggers LQG status). U-codes are toxic commercial chemicals. These apply when the pure or off-spec chemical is discarded — not when used and spent.

Frequently Asked Questions

Common questions about identifying and applying RCRA hazardous waste codes.

Can a waste have more than one hazardous waste code?

Yes. A waste can — and often does — carry multiple codes. For example, spent trichloroethylene might be listed as F001 (spent halogenated degreasing solvent) and also exhibit D040 (TCE toxicity characteristic). You must apply all applicable codes on the manifest.

What is the TCLP test and when is it required?

The Toxicity Characteristic Leaching Procedure (TCLP, SW-846 Method 1311) simulates leaching of a waste in a landfill environment. It is used to determine whether a solid waste exhibits the toxicity characteristic (D004–D043). If the leachate from a representative sample exceeds any regulatory threshold, the waste is hazardous.

How do P-listed wastes affect generator status?

Generating more than 1 kilogram of any P-listed (acutely hazardous) waste in a single calendar month automatically makes your facility a Large Quantity Generator (LQG) for that month, regardless of your total non-acute waste volume. Even a single over-limit month triggers the 90-day storage clock and all LQG requirements.

What is the "mixture rule" and why does it matter?

Under 40 CFR 261.3(a)(2)(iv), any mixture of a listed hazardous waste with a non-hazardous solid waste is still considered a listed hazardous waste. For example, if you mix F003 spent solvent with an oily rag that would otherwise be non-hazardous, the entire mixture is F003. This prevents dilution as a disposal strategy.

What is the "derived-from rule"?

Residues derived from the treatment, storage, or disposal of a listed hazardous waste are also listed hazardous wastes. Ash from incinerating an F001 solvent is still F001. Wastewater treatment sludge from treating a K-listed process waste is still K-listed. This rule keeps listed waste designations through treatment.

Do state waste codes differ from federal RCRA codes?

Yes. The federal RCRA program sets a floor — states with authorized programs can and often do add their own hazardous waste codes (e.g., California has additional CA-specific waste codes). Always verify against your state environmental agency's regulations in addition to the federal 40 CFR Part 261 listings shown here.

Know your codes. Track your deadlines.

Identifying the right waste codes is step one. Step two is making sure every container's accumulation clock is tracked before it expires. RCRAReady automates that — with SMS and email alerts before any deadline.

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