The Clean Air Acts of 1956 and 1968 were introduced to deal with the smog of the 1950s and 1960s. This was caused by the widespread burning of coal by industries and for domestic heating. These smog were blamed for the premature deaths of hundreds of people in the UK.

The Acts gave local authorities powers to control emissions of dark smoke, grit, dust and fumes from industrial premises and furnaces and to declare “Smoke Control Areas” in which emissions of smoke from domestic properties are banned.

Since then, smoke control areas have been introduced in many of our large towns and cities in the UK.

Smoke Control Areas  

Under the Clean Air Act local authorities may declare the whole or part of the district of the authority to be a Smoke Control Area.

It is an offence to emit smoke from a chimney of a building, (commercial or residential), from a furnace or from any fixed boiler if located in a designated smoke control area. It is also an offence to acquire an “unauthorised fuel” for use within a Smoke Control Area unless it is used in an “exempt” appliance (“exempted” from the controls which generally apply in the smoke control area).

The current maximum level of fine is £1,000 for each offence. To find out if you live in a smoke control area see the Smoke control zone map.

Authorised fuels  

Authorised fuels are fuels which are authorised by Statutory Instruments (Regulations) made under the Clean Air Act 1993 or Clean Air (Northern Ireland) Order 1981.

These include inherently smokeless fuels such as gas, electricity and anthracite together with specified brands of manufactured solid smokeless fuels. These fuels have passed tests to confirm that they are capable of burning in an open fireplace without producing smoke.

Exempt appliances  

Exempt appliances are appliances (ovens, wood burners and stoves) which have been exempted by Statutory Instruments (Orders) under the Clean Air Act 1993 or Clean Air (Northern Ireland) Order 1981. These have passed tests to confirm that they are capable of burning an unauthorised or inherently smoky solid fuel without emitting smoke.

For further information, you can read through the Clean Air Act 1993 or see 'Reviewing the Clean Air Act' on GOV.UK.