HC Deb 19 February 1958 vol 582 cc156-7W
89. Mr. Nabarro

asked the Minister of Housing and Local Government and Minister for Welsh Affairs whether, in view of the decision to bring into force on the 1st day of June the remaining provisions of the Clean Air Act, 1956, including the provisions relating to the prohibition of dark smoke from chimneys, arrangements may be made to make widely available instructions to the public as to how to identify dark smoke by means of the Ringelmann chart.

Mr. Bevins

This should not be necessary. Dark smoke as defined in the Act will seldom be emitted from domestic chimneys. Enforcement of the relevant provisions of the Act will normally be the responsibility of the local authorities; and my right hon. Friend will be issuing to them a memorandum in connection with the second appointed day which will include notes on the definition of dark smoke and the use of the Ringelmann Chart.