§ Dame Patricia Hornsby-Smithasked the Secretary of State for the Environment if he will seek to make it obligatory for map-makers to indicate the last date of the Ordnance Survey on which maps are based and the corrections applicable to each map as applies to navigational charts.
§ Mr. Graham PageOrdnance Survey maps already carry information on dates of survey and revision, and most are revised at intervals to incoporate corrections. My right hon. and learned Friend has no power to impose the obligations which my right hon. Friend suggests on other map publishers.