A to Z of topics

Explore SEPA’s A–Z list of topics about areas we regulate, guidance we provide, and public information we share. The list includes environmental regulations, compliance advice, and resources for communities and businesses.

Looking for a specific topic? Browse alphabetically, or select a category to filter the results.

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  • Charging information

    SEPA charges for the services it provides to help protect Scotland’s environment. Find out about what activities these charges support and how to make a payment.

  • Chemicals

    Chemicals play an important part in modern life, but they can impact ecosystems, human health and the environment. SEPA reduces and prevents harmful chemicals entering the environment.

  • Classification

    We use a classification system to measure the pressures effecting our waters, and define the state of Scotland’s water environment.

  • Consultation Hub

    Consultations allow the public to help shape environmental policy in Scotland. Take part in current consultations or view past responses via our Consultation Hub (opens an external link).

  • Contaminated land

    Land can become contaminated by different substances, from heavy materials to agricultural waste. Find out how contaminated land is managed and addressed in Scotland.

  • Control of Major Accident Hazards (COMAH)

    COMAH regulations aim to reduce the risks of potential major accidents involving dangerous substances. Learn who the regulations apply to and find information on handling hazardous chemicals.