HC Deb 09 December 1971 vol 827 c389W
Sir Clive Bossom

asked the Secretary of State for the Environment what is the proportion of vehicles tested at approved testing stations which are found to be defective, specifying the ages of the vehicles in question.

Mr. Peyton

Approximately 34 per cent. of all vehicles fail the test initially. Records are not kept of the ages of the vehicles concerned.