HC Deb 28 March 1973 vol 853 cc322-3W
72. Mr. Will Griffiths

asked the Secretary of State for the Environment what research has been carried out by his Department into the visual consequences of fitting heat rejecting glass in the windscreens of vehicles licensed in this country; and if he is satisfied that the reduction of light transmission which results does not increase safety hazards.

Mr. Peyton

My Department has been closely involved in the drawing up of an international standard which will contain a minimum light transmission requirement for all glass in vehicles.