HC Deb 26 February 1964 vol 690 c92W
77. Dr. Alan Thompson

asked the Minister of Transport whether he will make a further statement on plans for the control of diesel fumes.

Mr. Marples

Standards for the control of diesel fumes cannot be prescribed until exhaust measurement techniques have been investigated further. A British Standards Committee is considering a standard for engine performance which will include a limit for smoke emission for new diesel-engined vehicles. Meanwhile the present roadside checks will continue.