Spent Transformer Oil
Degraded insulating oil from electrical transformers, imported as waste lubricating oil under HTS 2710.99.31.00 for its petroleum base over 70%. Contains additives but unfit for reuse without reclamation.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | +7.5% | 7.5% |
| 🇲🇽Mexico | Free | — | Free |
| 🇨🇦Canada | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If reclaimed for insulating use
Reprocessed transformer oils for electrical insulation classify separately from waste.
If considered electrical insulating material residue
Insulating oil residues tied to electrical machinery parts may fall under Chapter 85.
If mixed with greases from bearings
Blends with minor grease content classify under oils and greases waste.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide PCB content analysis certificates, as transformer oils often contain regulated polychlorinated biphenyls
• Comply with TSCA import requirements for electrical insulating oils before entry
• Label as hazardous waste; improper documentation leads to landfill denial at ports
Related Products under HTS 2710.99.31.00
Used Motor Oil Waste
Waste oil collected from drained vehicle engines after use, classified under HTS 2710.99.31.00 as wastes of lubricating oils containing 70% or more petroleum oils as basic constituents. It meets the criteria for waste oils unfit for further use without reprocessing.
Waste Hydraulic Oil
Contaminated hydraulic fluid waste from industrial machinery, categorized as waste lubricating oil under HTS 2710.99.31.00 due to its petroleum oil base exceeding 70% by weight. Generated from systems in construction equipment and presses.
Waste Gearbox Oil
Used lubricating oil from vehicle and industrial gearboxes, classified in HTS 2710.99.31.00 as petroleum-based waste oils over 70% content. High viscosity from gear protection additives.
Used Compressor Oil Waste
Waste oil from air and gas compressors in manufacturing, under HTS 2710.99.31.00 for its synthetic or mineral petroleum lubricating base exceeding 70%. Contaminated with particulates and moisture.
Waste Turbine Lubricating Oil
Spent oil from industrial steam and gas turbines, imported via HTS 2710.99.31.00 as waste of petroleum lubricating oils over 70% by weight. Features oxidation-resistant additives.
Discarded Cutting Oil Waste
Waste soluble cutting oil from metal machining operations, under HTS 2710.99.31.00 when petroleum base exceeds 70% despite water dilution in use. Emulsified lubricating waste.