§ Dr. A. Thompsonasked the Minister of Transport whether he will introduce legislation to reduce motor exhausts by compelling all private and commercial motor vehicles to carry an anti-exhaust device similar to those being made compulsory by the California State Legislature, details of which have been sent to him by the hon. Member for Dunfermline Burghs.
§ Mr. Marples:The Californian legislation requiring the fitting of exhaust control devices for vehicles does not become effective until at least two suitable devices have been approved and are on sale. I am keeping in close touch with the position, but so far as I know no device has yet been approved, or is likely to be approved, in the near future.