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27 Waste and Recycling Oil Oil filters must be punctured and drained while warm. Drain filters for 24 hours. • Laboratories and small campus users: EH&S collects oil and oil filters. Label as “Used Oil.” • FP&M - Used oil is collected by Campus Services. EH&S collects crushed filters. Puncture, hot drain, and crush oil filters. Label filter container “Used Oil Filters – Drained and Crushed.” • Transportation Services - Used oil is collected at the shop. Puncture, hot drain and crush oil filters. EH&S collects crushed filters. Label filter container “Used Oil Filters – Drained and Crushed.” Contact EH&S when the drum is full and ready for exchange. • Iowa State Research Farms and outlying areas - Large quantities of oil should be collected on site in drums or tanks for collection by Iowa State University’s used oil vendor. Smaller quantities will be collected by EH&S. Label as “Used Oil.” Puncture and hot drain oil filters and collect in a drum or bucket for EH&S collection. Label filter container “Used Oil Filters – Drained.” Oil-filled equipment may be se nt to ISU Surplus following approval by EH&S.