This reference index contains all 842 six-digit entries in the WM3 GB waste-classification reference. An asterisk identifies a hazardous entry. Mirror entries need the relevant hazardous-property assessment before the correct member of the pair can be selected. Code selection is based on the activity and process that produced the waste, not simply on words that happen to match a description.
Waste classification is separate from dangerous-goods transport classification and from a receiving facility’s acceptance checks. WM3 GB applies in England, Scotland and Wales; Northern Ireland uses its own WM3 version and regulatory arrangements.
Code descriptions are reproduced from WM3, with Crown copyright material used under the Open Government Licence v3.0.
Finding the correct List of Waste code
Search by waste description or six-digit code. Spaces and hyphens are accepted. Chapter and WM3 entry-type filters narrow the list, but code selection still depends on the activity and process that produced the waste.
- Waste origin: the business activity and process that produced the material.
- Composition: known substances, contaminants and representative analysis where available.
- Code information: the full six-digit entry and any hazardous asterisk shown in existing records.
- Waste movement: quantity, container type and the documentation required before collection.
Reference sources for the waste code library
These sources explain the WM3 classification framework, legal responsibilities for waste classification and general pollution-prevention duties. They are reference material only. The correct classification depends on the waste itself and the jurisdiction in which it is produced.
Waste code guides
Chapter 10
10 01 03 — fly ash from peat and untreated wood
EWC / LoW 10 01 03
This is a WM3 absolute non-hazardous entry. For waste that fits the official description and source activity, the non-hazardous status is fixed; waste from a different source or of a different type may require another code.
Environment Agency: WM3 ↗WM3 reference information. A matching description alone does not establish the correct classification for a particular waste.
Waste classification notes
- WM3 identifies this as an absolute non-hazardous entry. Confirm that the waste fits this entry rather than another description.
- The correct List of Waste code depends on the activity and process that produced the waste and, where required, the evidence supporting its classification.
Environment Agency: WM3
Get a quoteChapter 10
10 01 04* — oil fly ash and boiler dust
EWC / LoW 10 01 04*
This is a WM3 absolute hazardous entry. For waste that fits the official description and source activity, the hazardous status is fixed; waste from a different source or of a different type may require another code.
Environment Agency: WM3 ↗WM3 reference information. A matching description alone does not establish the correct classification for a particular waste.
Waste classification notes
- WM3 identifies this as an absolute hazardous entry. Confirm the waste fits the description and source activity.
- The correct List of Waste code depends on the activity and process that produced the waste and, where required, the evidence supporting its classification.
Environment Agency: WM3
Get a quoteChapter 10
10 01 05 — calcium-based reaction wastes from flue-gas desulphurisation in solid form
EWC / LoW 10 01 05
This is a WM3 absolute non-hazardous entry. For waste that fits the official description and source activity, the non-hazardous status is fixed; waste from a different source or of a different type may require another code.
Environment Agency: WM3 ↗WM3 reference information. A matching description alone does not establish the correct classification for a particular waste.
Waste classification notes
- WM3 identifies this as an absolute non-hazardous entry. Confirm that the waste fits this entry rather than another description.
- The correct List of Waste code depends on the activity and process that produced the waste and, where required, the evidence supporting its classification.
Environment Agency: WM3
Get a quoteChapter 10
10 01 07 — calcium-based reaction wastes from flue-gas desulphurisation in sludge form
EWC / LoW 10 01 07
This is a WM3 absolute non-hazardous entry. For waste that fits the official description and source activity, the non-hazardous status is fixed; waste from a different source or of a different type may require another code.
Environment Agency: WM3 ↗WM3 reference information. A matching description alone does not establish the correct classification for a particular waste.
Waste classification notes
- WM3 identifies this as an absolute non-hazardous entry. Confirm that the waste fits this entry rather than another description.
- The correct List of Waste code depends on the activity and process that produced the waste and, where required, the evidence supporting its classification.
Environment Agency: WM3
Get a quoteChapter 10
10 01 09* — sulphuric acid
EWC / LoW 10 01 09*
This is a WM3 absolute hazardous entry. For waste that fits the official description and source activity, the hazardous status is fixed; waste from a different source or of a different type may require another code.
Environment Agency: WM3 ↗WM3 reference information. A matching description alone does not establish the correct classification for a particular waste.
Waste classification notes
- WM3 identifies this as an absolute hazardous entry. Confirm the waste fits the description and source activity.
- The correct List of Waste code depends on the activity and process that produced the waste and, where required, the evidence supporting its classification.
Environment Agency: WM3
Get a quoteChapter 10
10 01 13* — fly ash from emulsified hydrocarbons used as fuel
EWC / LoW 10 01 13*
This is a WM3 absolute hazardous entry. For waste that fits the official description and source activity, the hazardous status is fixed; waste from a different source or of a different type may require another code.
Environment Agency: WM3 ↗WM3 reference information. A matching description alone does not establish the correct classification for a particular waste.
Waste classification notes
- WM3 identifies this as an absolute hazardous entry. Confirm the waste fits the description and source activity.
- The correct List of Waste code depends on the activity and process that produced the waste and, where required, the evidence supporting its classification.
Environment Agency: WM3
Get a quoteChapter 10
10 01 14* — bottom ash, slag and boiler dust from co-incineration containing hazardous substances
EWC / LoW 10 01 14*
This is the hazardous side of a WM3 mirror entry. The source and official description must fit, and the relevant hazardous-property assessment is needed to decide between the mirror entries.
Environment Agency: WM3 ↗WM3 reference information. A matching description alone does not establish the correct classification for a particular waste.
Waste classification notes
- This is the hazardous side of a mirror entry. The actual composition and assessment determine which entry applies.
- The correct List of Waste code depends on the activity and process that produced the waste and, where required, the evidence supporting its classification.
Environment Agency: WM3
Get a quoteChapter 10
10 01 15 — bottom ash, slag and boiler dust from co-incineration other than those mentioned in 10 01 14
EWC / LoW 10 01 15
This is the non-hazardous side of a WM3 mirror entry. The source and official description must fit, with the relevant assessment supporting use of the non-hazardous entry.
Environment Agency: WM3 ↗WM3 reference information. A matching description alone does not establish the correct classification for a particular waste.
Waste classification notes
- This is the non-hazardous side of a mirror entry. The actual composition and assessment determine which entry applies.
- The correct List of Waste code depends on the activity and process that produced the waste and, where required, the evidence supporting its classification.
Environment Agency: WM3
Get a quoteChapter 10
10 01 16* — fly ash from co-incineration containing hazardous substances
EWC / LoW 10 01 16*
This is the hazardous side of a WM3 mirror entry. The source and official description must fit, and the relevant hazardous-property assessment is needed to decide between the mirror entries.
Environment Agency: WM3 ↗WM3 reference information. A matching description alone does not establish the correct classification for a particular waste.
Waste classification notes
- This is the hazardous side of a mirror entry. The actual composition and assessment determine which entry applies.
- The correct List of Waste code depends on the activity and process that produced the waste and, where required, the evidence supporting its classification.
Environment Agency: WM3
Get a quoteChapter 10
10 01 17 — fly ash from co-incineration other than those mentioned in 10 01 16
EWC / LoW 10 01 17
This is the non-hazardous side of a WM3 mirror entry. The source and official description must fit, with the relevant assessment supporting use of the non-hazardous entry.
Environment Agency: WM3 ↗WM3 reference information. A matching description alone does not establish the correct classification for a particular waste.
Waste classification notes
- This is the non-hazardous side of a mirror entry. The actual composition and assessment determine which entry applies.
- The correct List of Waste code depends on the activity and process that produced the waste and, where required, the evidence supporting its classification.
Environment Agency: WM3
Get a quoteChapter 10
10 01 18* — wastes from gas cleaning containing hazardous substances
EWC / LoW 10 01 18*
This is the hazardous side of a WM3 mirror entry. The source and official description must fit, and the relevant hazardous-property assessment is needed to decide between the mirror entries.
Environment Agency: WM3 ↗WM3 reference information. A matching description alone does not establish the correct classification for a particular waste.
Waste classification notes
- This is the hazardous side of a mirror entry. The actual composition and assessment determine which entry applies.
- The correct List of Waste code depends on the activity and process that produced the waste and, where required, the evidence supporting its classification.
Environment Agency: WM3
Get a quoteChapter 10
10 01 19 — wastes from gas cleaning other than those mentioned in 10 01 05, 10 01 07 and 10 01 18
EWC / LoW 10 01 19
This is the non-hazardous side of a WM3 mirror entry. The source and official description must fit, with the relevant assessment supporting use of the non-hazardous entry.
Environment Agency: WM3 ↗WM3 reference information. A matching description alone does not establish the correct classification for a particular waste.
Waste classification notes
- This is the non-hazardous side of a mirror entry. The actual composition and assessment determine which entry applies.
- The correct List of Waste code depends on the activity and process that produced the waste and, where required, the evidence supporting its classification.
Environment Agency: WM3
Get a quoteChapter 10
10 01 20* — sludges from on-site effluent treatment containing hazardous substances
EWC / LoW 10 01 20*
This is the hazardous side of a WM3 mirror entry. The source and official description must fit, and the relevant hazardous-property assessment is needed to decide between the mirror entries.
Environment Agency: WM3 ↗WM3 reference information. A matching description alone does not establish the correct classification for a particular waste.
Waste classification notes
- This is the hazardous side of a mirror entry. The actual composition and assessment determine which entry applies.
- The correct List of Waste code depends on the activity and process that produced the waste and, where required, the evidence supporting its classification.
Environment Agency: WM3
Get a quoteChapter 10
10 01 21 — sludges from on-site effluent treatment other than those mentioned in 10 01 20
EWC / LoW 10 01 21
This is the non-hazardous side of a WM3 mirror entry. The source and official description must fit, with the relevant assessment supporting use of the non-hazardous entry.
Environment Agency: WM3 ↗WM3 reference information. A matching description alone does not establish the correct classification for a particular waste.
Waste classification notes
- This is the non-hazardous side of a mirror entry. The actual composition and assessment determine which entry applies.
- The correct List of Waste code depends on the activity and process that produced the waste and, where required, the evidence supporting its classification.
Environment Agency: WM3
Get a quoteChapter 10
10 01 22* — aqueous sludges from boiler cleansing containing hazardous substances
EWC / LoW 10 01 22*
This is the hazardous side of a WM3 mirror entry. The source and official description must fit, and the relevant hazardous-property assessment is needed to decide between the mirror entries.
Environment Agency: WM3 ↗WM3 reference information. A matching description alone does not establish the correct classification for a particular waste.
Waste classification notes
- This is the hazardous side of a mirror entry. The actual composition and assessment determine which entry applies.
- The correct List of Waste code depends on the activity and process that produced the waste and, where required, the evidence supporting its classification.
Environment Agency: WM3
Get a quoteChapter 10
10 01 23 — aqueous sludges from boiler cleansing other than those mentioned in 10 01 22
EWC / LoW 10 01 23
This is the non-hazardous side of a WM3 mirror entry. The source and official description must fit, with the relevant assessment supporting use of the non-hazardous entry.
Environment Agency: WM3 ↗WM3 reference information. A matching description alone does not establish the correct classification for a particular waste.
Waste classification notes
- This is the non-hazardous side of a mirror entry. The actual composition and assessment determine which entry applies.
- The correct List of Waste code depends on the activity and process that produced the waste and, where required, the evidence supporting its classification.
Environment Agency: WM3
Get a quoteChapter 10
10 01 24 — sands from fluidised beds
EWC / LoW 10 01 24
This is a WM3 absolute non-hazardous entry. For waste that fits the official description and source activity, the non-hazardous status is fixed; waste from a different source or of a different type may require another code.
Environment Agency: WM3 ↗WM3 reference information. A matching description alone does not establish the correct classification for a particular waste.
Waste classification notes
- WM3 identifies this as an absolute non-hazardous entry. Confirm that the waste fits this entry rather than another description.
- The correct List of Waste code depends on the activity and process that produced the waste and, where required, the evidence supporting its classification.
Environment Agency: WM3
Get a quoteChapter 10
10 01 25 — wastes from fuel storage and preparation of coal-fired power plants
EWC / LoW 10 01 25
This is a WM3 absolute non-hazardous entry. For waste that fits the official description and source activity, the non-hazardous status is fixed; waste from a different source or of a different type may require another code.
Environment Agency: WM3 ↗WM3 reference information. A matching description alone does not establish the correct classification for a particular waste.
Waste classification notes
- WM3 identifies this as an absolute non-hazardous entry. Confirm that the waste fits this entry rather than another description.
- The correct List of Waste code depends on the activity and process that produced the waste and, where required, the evidence supporting its classification.
Environment Agency: WM3
Get a quoteChapter 10
10 01 26 — wastes from cooling-water treatment
EWC / LoW 10 01 26
This is a WM3 absolute non-hazardous entry. For waste that fits the official description and source activity, the non-hazardous status is fixed; waste from a different source or of a different type may require another code.
Environment Agency: WM3 ↗WM3 reference information. A matching description alone does not establish the correct classification for a particular waste.
Waste classification notes
- WM3 identifies this as an absolute non-hazardous entry. Confirm that the waste fits this entry rather than another description.
- The correct List of Waste code depends on the activity and process that produced the waste and, where required, the evidence supporting its classification.
Environment Agency: WM3
Get a quoteChapter 10
10 01 99 — wastes not otherwise specified
EWC / LoW 10 01 99
This is a WM3 absolute non-hazardous entry. For waste that fits the official description and source activity, the non-hazardous status is fixed; waste from a different source or of a different type may require another code.
Environment Agency: WM3 ↗WM3 reference information. A matching description alone does not establish the correct classification for a particular waste.
Waste classification notes
- WM3 identifies this as an absolute non-hazardous entry. Confirm that the waste fits this entry rather than another description.
- The correct List of Waste code depends on the activity and process that produced the waste and, where required, the evidence supporting its classification.
Environment Agency: WM3
Get a quoteChapter 10
10 02 01 — wastes from the processing of slag
EWC / LoW 10 02 01
This is a WM3 absolute non-hazardous entry. For waste that fits the official description and source activity, the non-hazardous status is fixed; waste from a different source or of a different type may require another code.
Environment Agency: WM3 ↗WM3 reference information. A matching description alone does not establish the correct classification for a particular waste.
Waste classification notes
- WM3 identifies this as an absolute non-hazardous entry. Confirm that the waste fits this entry rather than another description.
- The correct List of Waste code depends on the activity and process that produced the waste and, where required, the evidence supporting its classification.
Environment Agency: WM3
Get a quoteChapter 10
10 02 02 — unprocessed slag
EWC / LoW 10 02 02
This is a WM3 absolute non-hazardous entry. For waste that fits the official description and source activity, the non-hazardous status is fixed; waste from a different source or of a different type may require another code.
Environment Agency: WM3 ↗WM3 reference information. A matching description alone does not establish the correct classification for a particular waste.
Waste classification notes
- WM3 identifies this as an absolute non-hazardous entry. Confirm that the waste fits this entry rather than another description.
- The correct List of Waste code depends on the activity and process that produced the waste and, where required, the evidence supporting its classification.
Environment Agency: WM3
Get a quoteChapter 10
10 02 07* — solid wastes from gas treatment containing hazardous substances
EWC / LoW 10 02 07*
This is the hazardous side of a WM3 mirror entry. The source and official description must fit, and the relevant hazardous-property assessment is needed to decide between the mirror entries.
Environment Agency: WM3 ↗WM3 reference information. A matching description alone does not establish the correct classification for a particular waste.
Waste classification notes
- This is the hazardous side of a mirror entry. The actual composition and assessment determine which entry applies.
- The correct List of Waste code depends on the activity and process that produced the waste and, where required, the evidence supporting its classification.
Environment Agency: WM3
Get a quoteChapter 10
10 02 08 — solid wastes from gas treatment other than those mentioned in 10 02 07
EWC / LoW 10 02 08
This is the non-hazardous side of a WM3 mirror entry. The source and official description must fit, with the relevant assessment supporting use of the non-hazardous entry.
Environment Agency: WM3 ↗WM3 reference information. A matching description alone does not establish the correct classification for a particular waste.
Waste classification notes
- This is the non-hazardous side of a mirror entry. The actual composition and assessment determine which entry applies.
- The correct List of Waste code depends on the activity and process that produced the waste and, where required, the evidence supporting its classification.
Environment Agency: WM3
Get a quote
