ISO/IEC INTERNATIONAL STANDARD 8825-4 Fourth edition 2021-06 Information technology AsN.1 encoding rules - Part 4: XML Encoding Rules (XER) Technologies de I'information - Regles de codage ASN.1 - Partie 4: Regles de codage XML (XER) Reference number IEC ISO/IEC 8825-4:2021(E) oS1 @IS0/IEC2021 IS0/IEC 8825-4:2021(E) COPYRIGHT PROTECTED DOCUMENT @IS0/IEC2021 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either Iso at the address below or ISO's member body in the country of the requester. ISO copyright office CP 40i : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone:+4122 749 0111 Email: copyright@iso.org Website:www.iso.org Published in Switzerland ii @ IS0/IEC 2021 - All rights reserved