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Special waste
Special waste consignment notes (SWCN)
All special (hazardous) waste produced in Scotland must be consigned using a special waste consignment note (SWCN) bearing a unique SEPA-issued code, regardless of its final destination within the UK.
You do not have to use a SEPA-issued note; however, if you choose to design your own note, or use one from another source, you should ensure it contains all the
Diffuse pollution in the urban environment (SUDS)
Sustainable urban drainage systems
SUDS, or sustainable urban* drainage systems are a sequence of water management practices and facilities designed to drain surface water in a manner that will provide a more sustainable approach than what has been the conventional practice of routing run-off through a pipe to a watercourse.
* The use of the word 'urban' is frequently omitted, but the meaning is s
UK charging schemes
Control of Major Accident Hazards
Under Regulation 28 of the Control of Major Accident Hazards Regulations 2015, the competent authority has the power to charge operators for the regulatory work carried out under COMAH. Each member of the competent authority has a separate charge rate which is calculated in relation to the costs of that authority. These rates are reviewed annually and incorporated
Forms and guidance
Forms and information
Reservoir (Scotland) Act 2011 blank registration form
All new reservoirs, and any reservoirs regulated under the Reservoirs Act 1975 are required to be registered with SEPA.
To register your reservoir with SEPA please use the registration form.
Ceasing to be a reservoir manager
If you cease to be the manager of a registered controlled reservoir, you are required to notify us
Control of major accident hazards (COMAH)
Information regarding our role as the Competent Authority tasked with overseeing and enforcing the Control of Major Accident Hazards regulations.
Information regarding our role as the Competent Authority tasked with overseeing and enforcing the Control of Major Accident Hazards regulations.
The COMAH regulations are applicable to any establishment storing, or otherwise handling, large quantities of chemicals or substances of a hazardous nature, including production facilities, warehouses, and some distributors.
This section outlines our main duties and explains what operators need to do if the regulations apply to them.
In Scotland the competent authority is SEPA and the Health and S
Waste data for Scotland
Waste from all sources Discover Data tool
Household Waste Discover Data tool
Last updated: 15th July 2025
Last updated: 29th October 2024
This page presents data and information on the types and quantities of waste generated and managed across Scotland.The Scotland’s Environment Waste Discover Data tool presents waste from all sources, i.e. from households, the construction and dem
Technical guidance
Further technical guidance
This page brings together a number of ancillary guidance documents and previous email bulletin information relating to modelling of marine fish-farms for CAR licence applications.
Auxiliary biomass sampling transect
In areas where the tidal residual current is weak, the auxiliary transect (site-specific sampling 2) may be aligned along a bearing reciprocal to the primary
EC directives and legislation
Information regarding the diffrent EU directives that SEPA is required to enforce.
Information regarding the diffrent EU directives that SEPA is required to enforce.
Our science expertise supports our remit to ensure compliance with UK, European and international environmental legislation.
Our Environmental Assessment Unit (EAU) is responsible for the initiation, development and provision or dissemination of expert environmental modelling and data assessment (statistics and data trend information) systems. The EAU makes national reports of data for statutory r
Large combustion plant
Overview of legislation used to reduce air pollution produced by large combustion plants.
Overview of legislation used to reduce air pollution produced by large combustion plants.
Definition of large combustion plant
A Large Combustion Plant (LCP) is defined as a technical apparatus which is used to oxidize fuel in order to use the heat generated with a rated thermal input of equal to or greater than 50 megawatts (MW). This includes plant such as fossil fuel or biomass-fired power stations and combustion in petroleum refineries.
Where one or more plants are linked to a comm
Developing our flooding knowledge
We are continually working to develop and improve our knowledge on flood risk and flooding impacts and to identify new technologies to better support our flooding work.
We are continually working to develop and improve our knowledge on flood risk and flooding impacts and to identify new technologies to better support our flooding work.
As the strategic flood risk management authority in Scotland we are continually working to develop and improve our knowledge of the sources and impacts of flooding. We have developed a knowledge base of methods, guidance and summaries that may be useful to responsible authorities, academic projects and consultants delivering flood risk management projects, which can be accessed below.
National Flo