HC Deb 16 November 1955 vol 546 c32W
28. Mr. A. Evans

asked the Minister of Transport and Civil Aviation if he is aware that Regulations Nos. 21 and 79 of 1955 concerning the emission of smoke from motor vehicles cannot be effectively enforced; and if he will amend his regulations so as to define more clearly what constitutes an offence.

Mr. Boyd-Carpenter

I am aware of the difficulties, and in consultation with my right hon. Friend the Secretary of State for the Home Department I am considering whether the regulations require revision.