§ Mr. Michael McNair-Wilsonasked the Secretary of State for the Environment how many vehicle noise testing apparatus, like those laid down in Schedule 10 of the Motor Vehicles (Construction and Use) Regulations 1969 and 1973, are in operation in England and Wales.
§ Mr. MulleyThere are 26 sets of vehicle noise measuring equipment in operation—that is, for which a valid calibration certificate exists—in England and Wales under the direct control of my Department. Further sets are held by the police, various research organisations and industry but information as to total numbers and how many of these are operational is not readily available.