This leaflet contains notes on good practice which are not compulsory but
which you may find helpful in considering what you need to do.
This leaflet is available in priced packs of 10 from HSE Books, ISBN 0 7176 1553 7.
Single free copies are also available from HSE Books.
© Crown copyright This publication may be freely reproduced, except for advertising,
endorsement or commercial purposes. First published 4/98. Please acknowledge the
source as HSE.
INDG175(rev1)
Reprinted 8/03
C250
Printed and published by the Health and Safety Executive