The Clean Air (Northern Ireland) Order 1981

This legislation aims to prevent air pollution and makes it an offence to cause or permit the emission of dark smoke from chimneys or trade premises, including farms. It is also an offence to burn unauthorised fuel on farm businesses that are close to towns and cities and fall within 'Smoke Control Areas' as declared by District Councils. Enforcement is by District Councils

The maximum penalty for non-compliance £5,000.