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You must classify the waste your business produces before it is collected, disposed of or recovered.

You must do this to identify:

• if the waste is hazardous or not
• which controls apply to the movement of the waste - this is to prevent harm to people and the environment

Vehicle and metal shredder residues

Bulky metal wastes can be recycled through a shredding process. This breaks the waste into small pieces. Magnets may be used to remove ferrous metals.

Other heavy fractions, including non-ferrous metals, are separated out and sent for more treatment. This leaves a residue made of mostly light, low density materials.

This light fraction is described as 鈥榝luff鈥�, 鈥榝rag fluff鈥�, 鈥榣ight fraction鈥� or similar.

This residual fraction is also called metal shredder residue (MSR). When produced from vehicle shredding, it鈥檚 also called automotive shredder residue (ASR).

Classify this using the following codes.

	Waste status	Waste code
Fluff-light fraction and dust containing hazardous substances	Hazardous	19 10 03*
Fluff-light fraction and dust other than those mentioned in 19 10 03	Non-hazardous	19 10 04
Other fractions containing hazardous substances	Hazardous	19 10 05*
Other fractions other than those mentioned in 19 10 05	Non-hazardous	19 10 06

More treatment of ASR and MSR to segregate the components of the waste produces post shredder treatment (PST) residues. The way you code PST residues depends on the treatment processes. But if this treatment does not include shredding, then it鈥檚 likely you should classify this waste as a mixed waste from mechanical treatment.

Mixed wastes from mechanical treatment

The mechanical treatment of wastes can result in a range of outputs. These may be hazardous, non-hazardous or both. You must assess your waste to work out if it has any hazardous properties.

A common example of a mixed waste from mechanical treatment is the residual fraction from the trommelling of construction and demolition waste (also called trommel fines). This residual fraction commonly contains a mixture of soils, aggregates, plastic, wood and metal.

These are some examples of codes for mixed waste from mechanical treatment.

	Waste status	Waste code
Other wastes (including mixtures of materials) from mechanical treatment of waste containing hazardous substances	Hazardous	19 12 11*
Other wastes (including mixtures of materials) from mechanical treatment of wastes other than those mentioned in 19 12 11	Non-hazardous	19 12 12

Segregated wastes

You must only use these waste codes for single streams of waste. This means that they have been appropriately separated from other wastes. If your waste contains more than one waste type (such as glass, paper and plastic) then your waste is mixed and you cannot use these codes.

	Waste status	Waste code
Paper and cardboard	Non-hazardous	19 12 01
Ferrous metal	Non-hazardous	19 12 02
Non-ferrous metal	Non-hazardous	19 12 03
Plastic and rubber	Non-hazardous	19 12 04
Glass	Non-hazardous	19 12 05
Wood containing hazardous substances	Hazardous	19 12 06*
Wood other than that mentioned in 19 12 06	Non-hazardous	19 12 07
Textiles	Non-hazardous	19 12 08

Minerals

For waste classification, 鈥榤inerals鈥� means naturally occurring materials such as sand and stone.

Minerals produced from the treatment of aggregates must not include:

• human-made (anthropogenic) wastes such as bricks, concrete, tiles and ash
• non-mineral wastes

	Waste status	Waste code
Minerals (for example sand, stones)	Non-hazardous	19 12 09

Refuse derived fuels

Refuse derived fuel is waste that has been treated to be suitable for use as fuel. It must meet the specification for the facility where it is sent for use. This may include requirements for the calorific value, chlorine content and biogenic (made by or of plants and animals) content.

Do not classify waste as 19 12 10 if it:

• requires more processing before it can be used as a fuel
• does not go for use as a fuel

	Waste status	Waste code
Combustible waste (refuse derived fuel)	Non-hazardous	19 12 10

How to classify other wastes

Check the guidance on how to classify other common waste types.

Or check the聽technical guidance on waste, which lists all of the waste codes and how to apply them.

Get advice from a specialist waste contractor if you are not sure what code to use for your waste.

For more information, contact the Environment Agency.