Specifications

Department for Transport
Great Minster House
33 Horseferry Road
London SW1P 4DR
Web site www.gov.uk/dft
© Queen’s Printer and Controller of Her Majesty’s Stationery Office, 2008, except where otherwise stated.
Copyright in the typographical arrangement rests with the Crown.
You may re-use this information (not including logos or third-party material) free of charge in any format or medium, under the
terms of the Open Government Licence. To view this licence, visit www.nationalarchives.gov.uk/doc/open-government-licence/ or
write to the Information Policy Team, The National Archives, Kew, London TW9 4DU, or e-mail: [e-mail].
ISBN 978 0 11 552936 8
Ninth Impression 2013
Printed in Great Britain on paper containing at least 75% recycled fibre.
7611 Introduction to the Use of Portable Vehicular Signals v4_2.indd 4 27/11/2013 14:56