§ Mr. Adleyasked the Secretary of State for the Environment what are the smoke emission requirements of his Department, both in general and statistically, to check the level of diesel fumes emitted by diesel-engined vehicles.
§ Mr. PeytonA vehicle may not be used on the road if smoke emission causes or is likely to cause damage, injury or danger. The requirements for new vehicles are contained in a British Standard (BS AU 141a).
§ Mr. Adleyasked the Secretary of State for the Environment what criteria are used by his Department in checking that diesel engines conform to current smoke-emission requirements.
§ Mr. PeytonInspection procedures under the testing regulations and grounds for failure of the test are set out in the Tester's Manual (Her Majesty's Stationery Office, 1972).