An Industry Overview of Businesses in the Vehicle Maintenance Category

If your business is in the vehicle maintenance category, then the products you use on the vehicles and on your equipment, tools, hands, or floor might contain hazardous materials, and the waste generated by using these products might be hazardous waste. If you generate hazardous waste, you might be subject to Resource Conservation and Recovery Act (RCRA) requirements covering the generation, transportation, and management of hazardous waste.

Your business is classified under vehicle maintenance if you repair or maintain:

Vehicle maintenance operations that might generate hazardous waste include:

Hazardous Wastes from Vehicle Maintenance

Everyday mechanics and body repair personnel use products containing hazardous materials. Products containing materials that are hazardous to human health and the environment include:

Waste that is generated as a result of using these products might be RCRA-regulated hazardous waste.

Table 1 lists typical processes/operations that use products that might contain hazardous materials and that probably generate hazardous waste. If you generate 100 kilograms (220 pounds or about half of a 55-gallon drum) or more of hazardous waste per month, you must fill out a Uniform Hazardous Waste Manifest when you ship hazardous waste off your property. The Manifest requires the proper Department of Transportation (DOT) description for each waste. Table 2 lists proper DOT shipping descriptions for a number of wastes that might be generated during vehicle maintenance operations. Table 1 and Table 2 are not comprehensive lists. If you suspect any waste you generate is hazardous, check with your state hazardous waste management agency or Regional EPA office.

There are special provisions in the regulations for spent lead-acid batteries and used oil. You do not have to use a Manifest when you ship used lead batteries that are destined for recycling or used motor oil that is destined for recycling. If, however, you are disposing of used oil yourself or are sending it off-site for disposal, you generally should handle it as hazardous waste because it is likely to be ignitable or toxic. Special requirements apply if you are burning used oil as fuel. Your state might have its own requirements for lead-acid batteries or used oil; check with your state hazardous waste management agency.

Waste Minimization

An effective waste minimization program can reduce the costs, liabilities, and regulatory burdens of hazardous waste management, while potentially enhancing efficiency, product quality, and community relations. Waste minimization techniques that can help you reduce the amount of hazardous waste that you generate include:

Training and supervision of employees implementing waste minimization techniques is an important part of your successful program. Call the RCRA/Superfund Hotline toll-free at 800-424-9346 (or TDD 800-553-7672 for the hearing-impaired) for waste minimization information and publications.

Table 1 Typical Vehicle Maintenance Operations
Materials Used and Hazardous Wastes that Might be Generated

Process/OperationMaterials UsedTypical Material IngredientGeneral Types of Waste Generated
DegreasingDegreasers (gunk), carburetor cleaners, engine cleaners, solvents, acids/alkalies, cleaning fluidsPetroleum distillates, aromatic hydrocarbons, mineral spirits, benzene, toluene, petroleum naphthaAcid/alkaline wastes, Spent solvents, Ignitable wastes, Toxic wastes
Rust RemovalNaval jelly, strong acids, strong alkaliesPhosphoric acid, hydrochloric acid, hydrofluoric acid, sodium hydroxideAcid/alkaline wastes
Paint PreparationPaint thinners, enamel reducers, hire spiritsAlcohols, petroleum distillates, oxygenated solvents, mineral spirits, ketonesPaint wastes, Spent Solvents, Ignitable wastes, Toxic wastes
PaintingEnamels, lacquers, epoxies, alkyds, acrylics, primers, solventsAcetone, toluene, benzene, petroleum distillates, epoxy ester resins, methylene chloride, xylene, VM&P naphtha, aromatic hydrocarbons, methyl isobutyl, ketonesPaint wastes, Spent solvents, Ignitable wastes, Toxic wastes
Spray Booth, Spray Guns, and Brush CleaningPaint thinners, enamel reducers, solvents, white spiritsKetones, alcohols, toluene, acetone, isopropyl alcohol, petroleum distillates, mineral spiritsPaint wastes, Spent solvents, Toxic wastes
Paint RemovalSolvents, paint thinners, enamel reducers, white spintsAcetone, toluene, petroleum distillates, methanol, methylene chloride, isopropyl alcohol, mineral spirits, alcohols, ketones, other oxygenated solventsPaint wastes, Spent solvents, Toxic wastes
Tank CleanoutSolvents or cleaners to wash out tanks, residuesSolvents, petroleum products in tanksTank draws containing toxic residues
Installing Lead-Acid BatteriesUsed batteries of cars, trucks, boats, motorcycles, and other vehiclesLead drossAcid/alkaline astes, Batteries (lead-acid)

Table 2 Vehicle Maintenance Waste Descriptions

Waste TypeDesignations/Trade NamesUN/NA DOT Shipping NameHazard ClassID Number
Strong Acid/Alkaline Wastes
Ammonium HydroxideAmmonium Hydroxide, NH4OH, Spirit of Hartshorn, Aqua AmmoniaWaste Ammonium Hydroxide (containing not less than 12% but not more than 44% ammonia)Corrosive MaterialNA2672
  (containing less than 12% ammonia)ORM-ANA2672
Hydrobromic AcidHydrobromic Acid, HbrWaste Hydrobromic Acid (not more than 49% strength)Corrosive MaterialUN1788
Hydrochloric AcidHydrochloric Acid, HCI, Muriatic AcidWaste Hydrochlonc AcidCorrosive MaterialNA1789
Hydrofluoric AcidHydrofluoric Acid, HF, Fluorohydric AcidWaste Hydrofluoric AcidCorrosive MaterialUN1790
Nitric AcidNitric Acid, HNO2, AquafortisWaste Nitric Acid (over 40%)OxidizerUN2031
  (40% or less)Corrosive MaterialNA1760
Phosphoric AcidPhosphoric Acid, H3PO4, Orthophosphoric AcidWaste Phosphoric AcidCorrosive MaterialUN1805
Potassium HydroxidePotassium Hydroxide, KOH, Potassium Hydrate, Caustic Potash, PotassaWaste Potassium Hydroxide SolutionCorrosive MaterialUN1814
  Dry Solid, Flake, Bead, or GranularCorrosive MaterialUN1813
Sodium HydroxideSodium Hydroxide NaOH, Caustic Soda, Soda Lye, Sodium HydrateWaste Sodium Hydroxide SolutionCorrosive MaterialUN1824
  Dry Solid, Flake, Bead, or GranularCorrosive MaterialUN1823
Sulfuric AcidSulfuric Acid, H2SO4, Oil of VitriolWaste Sulfuric AcidCorrosive MaterialUNI830
Chromic AcidChromic AcidWaste Chromic Acid SolutionCorrosive MaterialUN1755
Ethylene Dichloride*Ethylene Dichloride, 1.2-DichloroethaneWaste Ethylene DichlorideFlammable Liquid 2UN1184
Benzene*BenzeneWaste Benzene (benzol)Flammable LiquidUN1114
TolueneTolueneWaste Toluene (toluol)Flammable LiquidUN1294
Ethyl BenzeneEthyl BenzeneWaste Ethyl BenzeneFlammable LiquidUN1175
Chlorobenzene*Chlorobenzene, Monochlorobenzene, PhenylchlorideWaste ChlorobenuneFlammable LiquidUN1134
Cresols*o-Cresol, m-Cresol, p-Cresol, (m.p) Cresol, (o.m.p)-CresolWaste CresolCorrosive MaterialUN2076
Trichlorethylene*TCE, Gemalgene, Lanadin, Lethurin, Nialk, P....- Chlor...Waste TrichlorethyleneORM-AUN1710
Methyl Ethyl Ketone*Methyl Ethyl Ketone, MEK, Methyl Acc..., MeetcoWaste Methyl Ethyl KetoneFlammable LiquidUN1193
Spent Solvents and Ignitable or Toxic Wastes Containing:
Benzene, Ethyl Ketone Chloroform*ChloroformWaste ChloroformORM-AUN1888
Carbon Tetrachloride...... Tetraform, C...ona Halm 104Waste Carbon TetrachlorideORM-AUN1846
Hexachlorithene*HexachloritheneWaste HexchloritheneORM-ANA9037
White Spirits, VarsolWhite Spirits, Mineral Spirits, NaphthaWaste NaphthaFlammable LiquidUN2553
1,1,1-TrichloroethaneAerothene TY, Chlorien, Chlorithane, Methyl Chloroform, Alpha T, ChlomteneWaste 1,1,1-TrichloroethaneORM-AUN2831
Petroleum DistillatesPetroleum DistillatesWaste Petroleum DistillateFlammable LiquidUN1268
   Combustible Liquid 3UN1268
Paint Wastes with Heavy Metals
Heavy Metal paints or paint sludges with:
Nickel*, Chromium*
Hazardous WasteLiquid or Solid. NOS4ORM-ENA9189
Other Wastes
Lead-Acid Batteries Lead Dross containing 3% or mom free acid)ORM-CNA1794
Used Oil Waste Petroleum Oil. NOSCombustible LiquidNA1270
Ignitable Wastes, NOS4 Waste Petroleum Oil. NOSFlammable LiquidNA1270
Hazardous Waste, NOS Waste Flammable Liquid, NOSFlammable LiquidUN1993
Heavy Metal Paints Waste Combustible Liquid, NOS  
Lead-Acid Batteries  Combustible LiquidNA1993
Various petroleum products Waste Flammable Solid, NOSFlammable SolidUN1125
Ignitable wastes Hazardous Waste, Liquid or Solid. NOSORM-EUN9189

Toxicity Characteristic constituent. Any waste that results in a TCLP leachate containing a Toxicity Characteristic constituent equal to or above regulatory levels is hazardous.

  1. These descriptions may change given variations in waste characteristics or conditions. Note that the DOT shipping name, hazard class, and UN/NA ID number do not necessarily correspond to RCRA hazardous Waste categories.
  2. A flammable liquid has a flub point below 100 deg. F.
  3. A combustible liquid has a flash point between 100 deg. F. and 200 deg. F.
  4. NOS - Not otherwise specified.


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Last Updated: January 5, 1996