EWC code 05 01 12: oil containing acids
EWC code 05 01 12 covers oil containing acids. It sits in chapter 05, petroleum refining, gas purification and coal treatment wastes .
Hazardous waste code
This is a hazardous waste code. Hazardous waste travels with a hazardous waste consignment note rather than a standard waste transfer note.
Where this waste comes from
Typically arises from petroleum, refinery, refining and gas purification.
Other codes in this group
Codes that share group 05 01 with 05 01 12.
- 05 01 03 tank bottom sludges Hazardous
- 05 01 04 acid alkyl sludges Hazardous
- 05 01 05 oil spills Hazardous
- 05 01 06 oily sludges from maintenance operations of the plant or equipment Hazardous
- 05 01 07 acid tars Hazardous
- 05 01 08 other tars Hazardous
- 05 01 09 sludges from on-site effluent treatment containing hazardous substances Hazardous
- 05 01 10 sludges from on-site effluent treatment other than those mentioned in 05 01 09
How it is recorded
The waste transfer note records the waste by its EWC code, along with the quantity, the time and place of transfer and the details of both parties. The EWC code lookup tool confirms a code before it goes on a note, and the guide to EWC codes on waste transfer notes explains how the codes are chosen.
From October 2026, permitted receiving sites in England and Wales record every load on DEFRA's Digital Waste Tracking Service, with Scotland and Northern Ireland following in January 2027. The EWC code is part of that submission.
Recording this code on every load
LoadLog checks EWC codes as a load is recorded, then submits the record to DEFRA's Digital Waste Tracking Service. Compliance Lite is free until the end of 2026 for sign-ups before October.
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