Scheduled Waste Codes

List of Scheduled Waste Codes

This page shows the list of scheduled waste (hazardous waste) and its corresponding waste codes following the standards provided by DOE. The scheduled waste codes are a means to standardize the definitions for each kind of waste material.

There are various kinds of hazardous materials that are produced across all the industries, hence the waste materials are categorized into 5 main categories to help the general users distinguish them easily.

Each of the categories are marked with a single digit, differentiating them from each other. An example would be SW1 category belong to metal & metal-bearing wastes.

To expand on that, the waste materials that are categorized under them will start with the same digit, followed by 2 numbers. To illustrate, SW105 is a waste material called “Galvanic Sludge”. By looking at the first digit, you’ll be able to tell that this hazardous waste belongs to SW1 which is metal & metal bearing wastes.

SW1 Metal & Metal-Bearing Wastes

Waste Code Waste Description
SW 101 Waste containing arsenic or its compound
SW 102 Waste of lead acid batteries in whole or crushed form
SW 103 Waste of batteries containing cadmium and nickel or mercury or lithium
SW 104 Dust, slag, dross or ash containing arsenic, mercury, lead, cadmium, chromium, nickel, copper, vanadium, beryllium, antimony, tellurium, thallium or selenium excluding slag from iron and steel factory
SW 105 Galvanic sludges
SW 106 Residues from recovery of acid pickling liquor
SW 107 Slags from copper processing for further processing or refining
containing arsenic, lead or cadmium
SW 108 Leaching residues from zinc processing in dust and sludges form
SW 109 Waste containing mercury or its compound
SW 110 Waste from electrical and electronic assemblies containing components such as accumulators, mercury-switches, glass from cathode-ray tubes and other activated glass olychlorinated biphenyl-capacitors, or contaminated with cadmium, mercury, lead, nickel, chromium, copper, lithium, silver, manganese or polychlorinated biphenyl

SW2 Wastes Containing Principally Inorganic Constituents

Waste Code Waste Description
SW 201 Asbestos wastes in sludges, dust or fibre forms
SW 202 Waste catalysts
SW 203 Immobilized scheduled wastes including chemically fixed, encapsulated, solidified or stabilized sludges
SW 204 Sludges containing one or several metals including chromium, copper, nickel, zinc, lead, cadmium, aluminium, tin, vanadium and beryllium
SW 205 Waste gypsum arising from chemical industry or power plant
SW 206 Spent inorganic acids
SW 207 Sludges containing fluoride

SW3 Wastes Containing Principally Organic Constituents

Waste Code Waste Description
SW 301 Spent organic acids with pH less or equal to 2 which are corrosive or hazardous
SW 302 Flux waste containing mixture of organic acids, solvents or compounds of ammonium chloride
SW 303 Adhesive or glue waste containing organic solvents excluding solid polymeric materials
SW 304 Press cake from pretreatment of glycerol soap lye
SW 305 Spent lubricating oil
SW 306 Spent hydraulic oil
SW 307 Spent mineral oil-water emulsion
SW 308 Oil tanker sludges
SW 309 Oil-water mixture such as ballast water
SW 310 Sludge from mineral oil storage tank
SW 311 Waste oil or oily sludge
SW 312 Oily residue from automotive workshop, service station oil or grease interceptor
SW 313 Oil contaminated earth from re-refining of used lubricating oil
SW 314 Oil or sludge from oil refinery plant maintenance operation
SW 315 Tar or tarry residues from oil refinery or petrochemical plant
SW 316 Acid sludge
SW 317 Spent organometallic compounds including tetraethyl lead, tetramethyl lead and organotin compounds
SW 318 Waste, substances and articles containing or contaminated with polychlorinated biphenyls (PCB) or polychlorinated triphenyls (PCT)
SW 319 Waste of phenols or phenol compounds including chlorophenol in the form of liquids or sludges
SW 320 Waste containing formaldehyde
SW 321 Rubber or latex wastes or sludge containing organic solvents or heavy metals
SW 322 Waste of non-halogenated organic solvents
SW 323 Waste of halogenated organic solvents
SW 324 Waste of halogenated or unhalogenated non-aqueous distillation residues arising from organic solvents recovery process
SW 325 Uncured resin waste containing organic solvents or heavy metals including epoxy resin and phenolic resin
SW 326 Waste of organic phosphorus compound
SW 327 Waste of thermal fluids (heat transfer) such as ethylene glycol

SW4 Wastes Containing Either Organic or Inorganic Constituents

Waste Code Waste Description
SW 401 Spent alkalis containing heavy metals
SW 402 Spent alkalis with pH more or equal to 11.5 which are corrosive or hazardous
SW 403 Discarded drugs containing psychotropic substances or containing substances that are toxic, harmful, carcinogenic, mutagenic or teratogenic
SW 404 Pathogenic wastes, clinical wastes or quarantined materials
SW 405 Waste arising from the preparation and production of pharmaceutical product
SW 406 Clinker, slag and ashes from scheduled wastes incinerator
SW 407 Waste containing dioxins or furans
SW 408 Contaminated soil, debris or matter resulting from cleaning-up of a spill of chemical, mineral oil or scheduled wastes
SW 409 Disposed containers, bags or equipment contaminated with chemicals, pesticides, mineral oil or scheduled wastes
SW 410 Rags, plastics, papers or filters contaminated with scheduled wastes
SW 411 Spent activated carbon excluding carbon from the treatment of potable water and processes of the food industry and vitamin production
SW 412 Sludges containing cyanide
SW 413 Spent salt containing cyanide
SW 414 Spent aqueous alkaline solution containing cyanide
SW 415 Spent quenching oils containing cyanides
SW 416 Sludges of inks, paints, pigments, lacquer, dye or varnish
SW 417 Waste of inks, paints, pigments, lacquer, dye or varnish
SW 418 Discarded or off-specification inks, paints, pigments, lacquer, dye or varnish products containing organic solvent
SW 419 Spent di-isocyanates and residues of isocyanate compounds excluding solid polymeric material from foam manufacturing process
SW 420 Leachate from scheduled waste landfill
SW 421 A mixture of scheduled wastes
SW 422 A mixture of scheduled and non-scheduled wastes
SW 423 Spent processing solution, discarded photographic chemicals or discarded photographic wastes
SW 424 Spent oxidizing agent
SW 425 Wastes from the production, formulation, trade or use of pesticides, herbicides or biocides
SW 426 Off-specification products from the production, formulation, trade or use of pesticides, herbicides or biocides
SW 427 Mineral sludges including calcium hydroxide sludges, phosphating sludges, calcium sulphite sludges and carbonates sludges
SW 428 Wastes from wood preserving operation using inorganic salts containing copper, chromium or arsenic of fluoride compounds or using compound containing chlorinated phenol or creosote
SW 429 Chemicals that are discarded or off-specification
SW 430 Obsolete laboratory chemicals
SW 431 Waste from manufacturing or processing or use of explosives
SW 432 Waste containing, consisting of or contaminated with, peroxides

SW5 Other Wastes

Waste Code Waste Description
SW 501 Any residues from treatment or recovery of scheduled wastes

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