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7.4 Used Oil

Uncontaminated used oil is not considered hazardous and should be collected and recycled. Do not mix other chemical wastes with used oil. If a hazardous waste, such as flammable solvents or heavy metals, is added to used oil, then the resulting mixture cannot be recycled and must be handled as hazardous waste. Be sure to note any contaminants on the Hazardous Waste Label when disposing of contaminated used oil.

Uncontaminated used oil to be recycled must be labeled with the identifying words "Used Oil”. Cornell’s R5 Group manages the Used Oil Recycling Program.

Oil removed from transformers or other electrical equipment must be sampled and analyzed for PCBs prior to recycling. Contact EHS at "askEHS" for sample bottles and submission of samples for laboratory analysis.