Table 1.
Typical Wastes Generated at Automotive Repair Shops
and Typical Category by Waste Management Method 1

Waste Stream Typical Category
If Not Mixed With
Other Hazardous Waste
Typical Category
If Recycled
If Disposed
in Landfill and Not Mixed
With a Hazardous Waste 2,3
Used Oil (and Shop Rags for Used Oil) Used oil Used oil Hazardous waste
Used Oil Filters 4 Nonhazardous solid waste If No Free Flowing Used Oil Used oil if not drained Nonhazardous solid waste If No Free Flowing Used Oil
Oil Spill Absorbent Material Used oil Used oil Depends on used oil characterization
Used Transmission Fluid Used oil Used oil Hazardous waste
Used Brake Fluid Used oil Used oil Hazardous waste
Used Antifreeze Depends on characterization Depends on characterization Depends on characterization
Used Solvents Hazardous waste Hazardous waste Hazardous waste
Used Citric
Solvents 5
Nonhazardous solid waste Nonhazardous solid waste Nonhazardous solid waste
Used Cleaning Agents and Shop Rags for Parts Cleaning Depends on characterization of cleaning agent Depends on characterization of cleaning agent Depends on characterization of cleaning agent
Shop Rags and Spill Material Used for Chemical Solvent and Gasoline Hazardous waste Hazardous waste Hazardous waste
Spilled or Unused Fuels Hazardous waste Hazardous waste Hazardous waste
Spilled or Unusable Paints and Thinners Hazardous waste Hazardous waste Hazardous waste
Abrasive Grit Blast Media Depends on material or paint being blasted (e.g., latex vs. lead paint) Depends on material or paint being blasted Depends on material or paint being blasted
Batteries
(1) Lead acid, Ni/Cd, Ni/Fe
(2) Alkaline
(1) If hazardous, universal waste
(2) Typically a nonhazardous waste
(1) If hazardous, universal waste
(2) Nonhazardous waste
(1) If hazardous, universal waste
(2) Typically a nonhazardous waste
Used Tires Nonhazardous solid waste Nonhazardous solid waste Nonhazardous solid waste

  1. Disclaimer: This list is not an actual regulatory determination. It is a list that identifies specific materials at automotive facilities and how they could be classified. These restrictions on how the waste may be disposed of may change based on generator status (i.e., CESQG, SQG, or LQG).
  2. Municipal landfills are not permitted to accept hazardous waste from SQGs or LQGs; however, they may accept waste from CESQGs.
  3. If any solid waste is mixed with a hazardous waste, then the mixture becomes a hazardous waste.
  4. Used fuel filters are regulated separately from used oil filters, and are additionally regulated depending on the type of fuel.
  5. These solvents are general considered non-hazardous, but be aware of the contaminants left in the water-based cleaning solution. The solution could fail for lead and/or other solvents.

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