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WM3 waste descriptions and classification

List of Waste code library

A reference library for six-digit List of Waste codes, official WM3 descriptions and absolute or mirror entry types.

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842 reference records · 8 detailed guides

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

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842 matching records

Chapter 19

19 02 03 — premixed wastes composed only of non-hazardous wastes

EWC / LoW 19 02 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

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Chapter 19

19 02 04* — premixed wastes composed of at least one hazardous waste

EWC / LoW 19 02 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

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Chapter 19

19 02 05* — sludges from physico/chemical treatment containing hazardous substances

EWC / LoW 19 02 05*

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

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Chapter 19

19 02 06 — sludges from physico/chemical treatment other than those mentioned in 19 02 05

EWC / LoW 19 02 06

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

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Chapter 19

19 02 07* — oil and concentrates from separation

EWC / LoW 19 02 07*

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 quote

Chapter 19

19 02 08* — liquid combustible wastes containing hazardous substances

EWC / LoW 19 02 08*

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 quote

Chapter 19

19 02 09* — solid combustible wastes containing hazardous substances

EWC / LoW 19 02 09*

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

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Chapter 19

19 02 10 — combustible wastes other than those mentioned in 19 02 08 and 19 02 09

EWC / LoW 19 02 10

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

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Chapter 19

19 02 11* — other wastes containing hazardous substances

EWC / LoW 19 02 11*

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

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Chapter 19

19 02 99 — wastes not otherwise specified

EWC / LoW 19 02 99

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

Chapter 19

19 03 04* — wastes marked as hazardous, partly stabilised other than 19 03 08

EWC / LoW 19 03 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 quote

Chapter 19

19 03 05 — stabilised wastes other than those mentioned in 19 03 04

EWC / LoW 19 03 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 quote

Chapter 19

19 03 06* — wastes marked as hazardous, solidified

EWC / LoW 19 03 06*

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 quote

Chapter 19

19 03 07 — solidified wastes other than those mentioned in 19 03 06

EWC / LoW 19 03 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 quote

Chapter 19

19 03 08* — partly stabilised mercury

EWC / LoW 19 03 08*

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 quote

Chapter 19

19 04 01 — vitrified waste

EWC / LoW 19 04 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 quote

Chapter 19

19 04 02* — fly ash and other flue-gas treatment wastes

EWC / LoW 19 04 02*

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 quote

Chapter 19

19 04 03* — non-vitrified solid phase

EWC / LoW 19 04 03*

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 quote

Chapter 19

19 04 04 — aqueous liquid wastes from vitrified waste tempering

EWC / LoW 19 04 04

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 quote

Chapter 19

19 05 01 — non-composted fraction of municipal and similar wastes

EWC / LoW 19 05 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 quote

Chapter 19

19 05 02 — non-composted fraction of animal and vegetable waste

EWC / LoW 19 05 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 quote

Chapter 19

19 05 03 — off-specification compost

EWC / LoW 19 05 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 quote

Chapter 19

19 05 99 — wastes not otherwise specified

EWC / LoW 19 05 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 quote

Chapter 19

19 06 03 — liquor from anaerobic treatment of municipal waste

EWC / LoW 19 06 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 quote

Published by Environmental Services. Sources checked 12 September 2026. Editorial standards for this library.

If you identify a factual error in this library, please contact us so we can check it against the source.

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