D8: Biological treatment
Waste is treated biologically, in a way no other disposal code covers, and what's left is then disposed of under one of D1 to D12.
The legal wording
Biological treatment not specified elsewhere in this Annex which results in final compounds or mixtures which are discarded by means of any of the operations numbered D 1 to D 12
From Annex I to the Waste Framework Directive, which the Digital Waste Tracking (England) Regulations 2026 point to for every D code.
Disposal in the waste hierarchy
D8 is a disposal operation, the last step in the waste hierarchy. A business that passes waste on has to take the reasonable steps open to it to put prevention, re-use, recycling and other recovery first.
On a Digital Waste Tracking receipt
For each EWC code (the six-digit code from the List of Wastes that says what a waste is) on a receipt, the site that takes the waste in records the D code or the R code, or both, for what it will do with it, and the weight each code covers.
Sources
- Annex I to the Waste Framework Directive: disposal operations
- Annex II to the Waste Framework Directive: recovery operations
- The Digital Waste Tracking (England) Regulations 2026: Sch. 1, para. 14: the D or R code for each waste code on a receipt
- The Waste (England and Wales) Regulations 2011, regulation 12: the waste hierarchy
- DEFRA: Digital Waste Tracking production approval tests: test R04, a receipt with no D or R code, accepted with a warning
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Start on the free plan
CarrierNote is on the GOV.UK software provider list, connected to DEFRA's Digital Waste Tracking service. Receiving sites are in scope from October 2026 and carriers from October 2027, and you can be recording to DEFRA's standard from your first load, whenever you start.