U1 waste exemption: use of waste in construction
The U1 exemption allows you to use suitable waste rather than virgin raw material or material that has ceased to be waste - for example by complying with a quality protocol.
Applies to England
Waste exemptions are changing and this will affect anyone who carries out a waste exemption activity. Defra has published its consultation supplementary response document and associated annexes explaining these changes. It sets out which exemptions will be withdrawn or restricted. This is one of the waste exemptions that will be affected. We expect changes to the exemptions will start to roll out during 2024 and continue into 2025 but timescales have not been finalised yet.
Construction means building or engineering work - including repairing, altering, maintaining or improving existing work and preparatory or landscaping work.
Land reclamation is only allowed when it is an integral part of the construction activity.
Types of activity you can carry out
These include:
- using crushed bricks, concrete, rocks and aggregate to create a noise bund around a new development and then using soil to landscape the area
- using road planings and rubble to build a track, path or bridleway
- using woodchip to construct a track, path or bridleway
- bringing in soil from somewhere else to use in landscaping at housing developments
Types of activity you cannot carry out
You cannot:
- treat waste to make it suitable to use - see related exemptions T5, T6 and T7 (you need to register T7 with your local authority), for treatment options
- dispose of waste by using waste that is unsuitable or by using more waste than is needed. You need to be able to justify the amount needed
- use waste for land reclamation, for example by infilling a hollow
- register this exemption more than once at the same place for 3 years after registration
- de-register and then renew this exemption at the same place within a 3 year period
- store the waste for longer than 12 months before you use it
Types of waste you can use
The types of waste you can use under this exemption have been grouped together into 5 tables. These show the maximum quantities you can use and conditions for using the specific types of waste.
The waste codes are those listed in the List of Wastes (LoW) Regulations. You need to make sure your waste fits within the waste code and the description in the table.
You can use up to a total of 5,000 tonnes of the waste from this list for any type of construction:
| Waste code | Types of waste |
|---|---|
| 010102 | Waste from mineral non-metalliferous excavation |
| 010408 | Waste gravel and crushed rock not containing hazardous substances |
| 010409 | Waste sand and clay from exploration, mining, quarrying or treatment of minerals |
| 020202 | Shellfish shells from which the soft tissue or flesh has been removed only |
| 101208 | Waste ceramics, bricks, tiles and construction products (after thermal processing) |
| 101314 | Waste concrete and concrete sludge |
| 170101 | Concrete |
| 170102 | Bricks |
| 170103 | Tiles and ceramics |
| 170107 | Mixtures of concrete, bricks, tiles and ceramics not containing hazardous substances |
| 170508 | Track ballast not containing hazardous substances |
| 191205 | Glass |
| 191209 | Minerals (for example sand and stone) from waste management or water treatment facilities |
| 191212 | Aggregates only |
Within the 5,000 tonnes total, the waste described below can only be used for drainage work carried out under the Land Drainage Act 1991, the Water Resources Act 1991 or the Environment Act 1995. This is work that can be carried out only by drainage authorities such as Inland Drainage Boards, local authorities or the Environment Agency:
| Waste code | Types of waste |
|---|---|
| 170506 | Dredging spoil not containing hazardous substances |
You can use up to a total of 1,000 tonnes of the waste in this list for construction:
| Waste code | Type of waste |
|---|---|
| 020399, 020401 | Soil from cleaning and washing fruit and vegetables only |
| 170504 | Soil and stones (from construction and demolition sites) not containing hazardous substances |
| 170506 | Dredging spoil not containing hazardous substances |
| 191302 | Solid waste from soil remediation not containing hazardous substances |
| 200202 | Soil and stones |
Within the 1,000 tonnes total, you can only use the waste below to build tracks, paths, bridleways or car parks. The waste must be processed into chips before you use it:
| Waste code | Type of waste |
|---|---|
| 170302 | Bituminous mixtures not containing coal tar |
| 020103 | Plant tissue waste |
| 030101, 030301 | Untreated waste bark, cork and wood only |
| 030105 | Untreated wood, including sawdust, shavings and cuttings from untreated wood only |
| 170201 | Untreated wood only |
| 191207 | Untreated wood not containing hazardous substances |
| 200138 | Untreated wood not containing hazardous substances |
You can use up to a total of 50,000 tonnes of the waste in this list for building roads only. The road should be constructed to a specific engineering standard and have a sealed surface in order to qualify for this larger limit:
| Waste code | Type of waste |
|---|---|
| 170302 | Bituminous mixtures not containing coal tar |
| 170504 | Road sub base only |
You may use a combination of wastes from each of the tables, provided you do not exceed the limits for each table.
What else you may need with a U1 exemption
As well as registering this exemption, you may also need to comply with other legislation. This could include:
If you are building in the floodplain or near an ordinary watercourse, contact your lead local flood authority (county council, unitary authority or Internal Drainage Board) to discuss whether any consent other than planning permission is needed. This exemption can be carried out along a linear place such as a highway.
Guidance: meaning of ‘place’ for a linear site
Related exemptions
These are related exemptions where you can use or treat waste:
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T6 treating waste wood and waste plant matter by chipping, shredding, cutting or pulverising
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T7: treating waste bricks, tiles and concrete by crushing, grinding or reducing size (you need to register this with your local authority)
Using more waste than your exemption allows
If you need to use more waste than you are allowed under this exemption, you will need to apply for an environmental permit. Standard rules permits are available for using waste in construction not covered by this exemption:
Standard permits for waste operations
Register a U1 exemption
You must register this exemption with the Environment Agency if you meet the requirements.
Last updated 9 February 2023 + show all updates
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We have added information about changes to this waste exemption that are likely to happen during 2024 to 2025.
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First published.